public override AtlasPackingResult[] GetRects(List <Vector2> imgWidthHeights, int maxDimension, int padding, bool doMultiAtlas)
{
if (doMultiAtlas)
{
if (packingOrientation == TexturePackingOrientation.vertical)
{
return(_GetRectsMultiAtlasVertical(imgWidthHeights, maxDimension, padding, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2));
}
else
{
return(_GetRectsMultiAtlasHorizontal(imgWidthHeights, maxDimension, padding, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2));
}
}
else
{
AtlasPackingResult apr = _GetRectsSingleAtlas(imgWidthHeights, maxDimension, padding, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 0);
if (apr == null)
{
return(null);
}
else
{
return(new AtlasPackingResult[] { apr });
}
}
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(data.OnlyOneTextureInAtlasReuseTextures());
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Only one image per atlas. Will re-use original texture");
}
for (int i = 0; i < data.numAtlases; i++)
{
MeshBakerMaterialTexture dmt = data.distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.GetTexture2D();
if (data.resultType == MB2_TextureBakeResults.ResultType.atlas)
{
data.resultMaterial.SetTexture(data.texPropertyNames[i].name, atlases[i]);
data.resultMaterial.SetTextureScale(data.texPropertyNames[i].name, Vector2.one);
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, Vector2.zero);
}
}
yield break;
}
public override AtlasPackingResult[] GetRects(List <Vector2> imgWidthHeights, List <AtlasPadding> paddings, int maxDimensionX, int maxDimensionY, bool doMultiAtlas)
{
Debug.Assert(imgWidthHeights.Count == paddings.Count, imgWidthHeights.Count + " " + paddings.Count);
int maxPaddingX = 0;
int maxPaddingY = 0;
for (int i = 0; i < paddings.Count; i++)
{
maxPaddingX = Mathf.Max(maxPaddingX, paddings[i].leftRight);
maxPaddingY = Mathf.Max(maxPaddingY, paddings[i].topBottom);
}
if (doMultiAtlas)
{
return(_GetRectsMultiAtlas(imgWidthHeights, paddings, maxDimensionX, maxDimensionY, 2 + maxPaddingX * 2, 2 + maxPaddingY * 2, 2 + maxPaddingX * 2, 2 + maxPaddingY * 2));
}
else
{
AtlasPackingResult apr = _GetRectsSingleAtlas(imgWidthHeights, paddings, maxDimensionX, maxDimensionY, 2 + maxPaddingX * 2, 2 + maxPaddingY * 2, 2 + maxPaddingX * 2, 2 + maxPaddingY * 2, 0);
if (apr == null)
{
return(null);
}
else
{
return(new AtlasPackingResult[] { apr });
}
}
}
public AtlasPackingResult[] CalculateAtlasRectangles(MB3_TextureCombinerPipeline.TexturePipelineData data, bool doMultiAtlas, MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(data.OnlyOneTextureInAtlasReuseTextures());
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Only one image per atlas. Will re-use original texture");
AtlasPackingResult[] packerRects = new AtlasPackingResult[1];
AtlasPadding[] paddings = new AtlasPadding[] { new AtlasPadding(data._atlasPadding) };
packerRects[0] = new AtlasPackingResult(paddings);
packerRects[0].rects = new Rect[1];
packerRects[0].srcImgIdxs = new int[] { 0 };
packerRects[0].rects[0] = new Rect(0f, 0f, 1f, 1f);
MeshBakerMaterialTexture dmt = null;
if (data.distinctMaterialTextures[0].ts.Length > 0)
{
dmt = data.distinctMaterialTextures[0].ts[0];
}
if (dmt == null || dmt.isNull)
{
packerRects[0].atlasX = 16;
packerRects[0].atlasY = 16;
packerRects[0].usedW = 16;
packerRects[0].usedH = 16;
}
else
{
packerRects[0].atlasX = dmt.width;
packerRects[0].atlasY = dmt.height;
packerRects[0].usedW = dmt.width;
packerRects[0].usedH = dmt.height;
}
return packerRects;
}
//normalize atlases so that that rects are 0 to 1
public void ConvertToRectsWithoutPaddingAndNormalize01(AtlasPackingResult rr, AtlasPadding padding)
{
for (int i = 0; i < rr.rects.Length; i++)
{
rr.rects[i].x = (rr.rects[i].x + padding.leftRight) / rr.atlasX;
rr.rects[i].y = (rr.rects[i].y + padding.topBottom) / rr.atlasY;
rr.rects[i].width = (rr.rects[i].width - padding.leftRight * 2) / rr.atlasX;
rr.rects[i].height = (rr.rects[i].height - padding.topBottom * 2) / rr.atlasY;
}
}
//normalize atlases so that that rects are 0 to 1
void normalizeRects(AtlasPackingResult rr, int padding)
{
for (int i = 0; i < rr.rects.Length; i++)
{
rr.rects[i].x = (rr.rects[i].x + padding) / rr.atlasX;
rr.rects[i].y = (rr.rects[i].y + padding) / rr.atlasY;
rr.rects[i].width = (rr.rects[i].width - padding * 2) / rr.atlasX;
rr.rects[i].height = (rr.rects[i].height - padding * 2) / rr.atlasY;
}
}
public AtlasPackingResult CalculateAtlasRectangles(MB3_TextureCombinerPipeline.TexturePipelineData data, MB2_LogLevel LOG_LEVEL)
{
if (data._packingAlgorithm == MB2_PackingAlgorithmEnum.UnitysPackTextures)
{
//with Unity texture packer we don't find the rectangles, Unity does. When packer is run
return(new AtlasPackingResult(new AtlasPadding[0]));
}
AtlasPackingResult uvRects;
if (data.distinctMaterialTextures.Count == 1 && data._fixOutOfBoundsUVs == false)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Only one image per atlas. Will re-use original texture");
}
AtlasPadding[] paddings = new AtlasPadding[] { new AtlasPadding(data._atlasPadding) };
uvRects = new AtlasPackingResult(paddings);
uvRects.rects = new Rect[1];
uvRects.rects[0] = new Rect(0f, 0f, 1f, 1f);
uvRects.atlasX = data.distinctMaterialTextures[0].idealWidth;
uvRects.atlasY = data.distinctMaterialTextures[0].idealHeight;
}
else
{
List <Vector2> imageSizes = new List <Vector2>();
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
imageSizes.Add(new Vector2(data.distinctMaterialTextures[i].idealWidth, data.distinctMaterialTextures[i].idealHeight));
}
MB2_TexturePacker tp = MB3_TextureCombinerPipeline.CreateTexturePacker(data._packingAlgorithm);
tp.atlasMustBePowerOfTwo = data._meshBakerTexturePackerForcePowerOfTwo;
int atlasMaxDimension = data._maxAtlasSize;
List <AtlasPadding> paddings = new List <AtlasPadding>();
for (int i = 0; i < imageSizes.Count; i++)
{
AtlasPadding padding = new AtlasPadding();
padding.topBottom = data._atlasPadding;
padding.leftRight = data._atlasPadding;
if (data._packingAlgorithm == MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Horizontal)
{
padding.leftRight = 0;
}
if (data._packingAlgorithm == MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Vertical)
{
padding.topBottom = 0;
}
paddings.Add(padding);
}
AtlasPackingResult[] packerRects = tp.GetRects(imageSizes, paddings, atlasMaxDimension, atlasMaxDimension, false);
uvRects = packerRects[0];
}
return(uvRects);
}
public AtlasPackingResult[] GetRects(List <Vector2> imgWidthHeights, int maxDimension, int padding, bool doMultiAtlas)
{
if (doMultiAtlas)
{
return(_GetRectsMultiAtlas(imgWidthHeights, maxDimension, padding, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2));
}
else
{
AtlasPackingResult apr = _GetRectsSingleAtlas(imgWidthHeights, maxDimension, padding, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 2 + padding * 2, 0);
if (apr == null)
{
return(null);
}
else
{
return(new AtlasPackingResult[] { apr });
}
}
}
public void MergeAtlasPackingResultStackBonAInternal(AtlasPackingResult a, AtlasPackingResult b, out Rect AatlasToFinal, out Rect BatlasToFinal, bool stretchBToAtlasWidth, int maxWidthDim, int maxHeightDim, out int atlasX, out int atlasY)
{
// first calc width scale and offset
float finalW = a.usedW + b.usedW;
float scaleXa, scaleXb;
if (finalW > maxWidthDim)
{
scaleXa = maxWidthDim / finalW; //0,1
float offsetBx = ((float)Mathf.FloorToInt(a.usedW * scaleXa)) / maxWidthDim; //0,1
scaleXa = offsetBx;
scaleXb = (1f - offsetBx);
AatlasToFinal = new Rect(0, 0, scaleXa, 1);
BatlasToFinal = new Rect(offsetBx, 0, scaleXb, 1);
}
else
{
float offsetBx = a.usedW / finalW;
AatlasToFinal = new Rect(0, 0, offsetBx, 1);
BatlasToFinal = new Rect(offsetBx, 0, b.usedW / finalW, 1);
}
//next calc width scale and offset
if (a.atlasX > b.atlasX)
{
if (!stretchBToAtlasWidth)
{
// b rects will be placed in a larger atlas which will make them smaller
BatlasToFinal.width = ((float)b.atlasX) / a.atlasX;
}
}
else if (b.atlasX > a.atlasX)
{
// a rects will be placed in a larger atlas which will make them smaller
AatlasToFinal.width = ((float)a.atlasX) / b.atlasX;
}
atlasX = a.usedW + b.usedW;
atlasY = Mathf.Max(a.usedH, b.usedH);
}
public void MergeAtlasPackingResultStackBonAInternal(AtlasPackingResult a, AtlasPackingResult b, out Rect AatlasToFinal, out Rect BatlasToFinal, bool stretchBToAtlasWidth, int maxWidthDim, int maxHeightDim, out int atlasX, out int atlasY)
{
float finalH = a.usedH + b.usedH;
float scaleYa, scaleYb;
if (finalH > maxHeightDim)
{
scaleYa = maxHeightDim / finalH; //0,1
float offsetBy = ((float)Mathf.FloorToInt(a.usedH * scaleYa)) / maxHeightDim; //0,1
scaleYa = offsetBy;
scaleYb = (1f - offsetBy);
AatlasToFinal = new Rect(0, 0, 1, scaleYa);
BatlasToFinal = new Rect(0, offsetBy, 1, scaleYb);
}
else
{
float offsetBy = a.usedH / finalH;
AatlasToFinal = new Rect(0, 0, 1, offsetBy);
BatlasToFinal = new Rect(0, offsetBy, 1, b.usedH / finalH);
}
//next calc width scale and offset
if (a.atlasX > b.atlasX)
{
if (!stretchBToAtlasWidth)
{
// b rects will be placed in a larger atlas which will make them smaller
BatlasToFinal.width = ((float)b.atlasX) / a.atlasX;
}
}
else if (b.atlasX > a.atlasX)
{
// a rects will be placed in a larger atlas which will make them smaller
AatlasToFinal.width = ((float)a.atlasX) / b.atlasX;
}
atlasX = Mathf.Max(a.usedW, b.usedW);
atlasY = a.usedH + b.usedH;
}
public override IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(!data.OnlyOneTextureInAtlasReuseTextures());
Rect[] uvRects = packedAtlasRects.rects;
long estArea = 0;
int atlasSizeX = 1;
int atlasSizeY = 1;
uvRects = null;
for (int propIdx = 0; propIdx < data.numAtlases; propIdx++)
{
//-----------------------
ShaderTextureProperty prop = data.texPropertyNames[propIdx];
Texture2D atlas = null;
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.LogWarning("Beginning loop " + propIdx + " num temporary textures " + combiner._getNumTemporaryTextures());
}
MB3_TextureCombinerPackerRoot.CreateTemporaryTexturesForAtlas(data.distinctMaterialTextures, combiner, propIdx, data);
Texture2D[] texToPack = new Texture2D[data.distinctMaterialTextures.Count];
for (int texSetIdx = 0; texSetIdx < data.distinctMaterialTextures.Count; texSetIdx++)
{
MB_TexSet txs = data.distinctMaterialTextures[texSetIdx];
int tWidth = txs.idealWidth;
int tHeight = txs.idealHeight;
Texture2D tx = txs.ts[propIdx].GetTexture2D();
if (progressInfo != null)
{
progressInfo("Adjusting for scale and offset " + tx, .01f);
}
if (textureEditorMethods != null)
{
textureEditorMethods.SetReadWriteFlag(tx, true, true);
}
tx = GetAdjustedForScaleAndOffset2(prop.name, txs.ts[propIdx], txs.obUVoffset, txs.obUVscale, data, combiner, LOG_LEVEL);
//create a resized copy if necessary
if (tx.width != tWidth || tx.height != tHeight)
{
if (progressInfo != null)
{
progressInfo("Resizing texture '" + tx + "'", .01f);
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.LogWarning("Copying and resizing texture " + prop.name + " from " + tx.width + "x" + tx.height + " to " + tWidth + "x" + tHeight);
}
tx = combiner._resizeTexture(prop.name, (Texture2D)tx, tWidth, tHeight);
}
estArea += tx.width * tx.height;
if (data._considerNonTextureProperties)
{
//combine the tintColor with the texture
tx = combiner._createTextureCopy(prop.name, tx);
data.nonTexturePropertyBlender.TintTextureWithTextureCombiner(tx, data.distinctMaterialTextures[texSetIdx], prop);
}
texToPack[texSetIdx] = tx;
}
if (textureEditorMethods != null)
{
textureEditorMethods.CheckBuildSettings(estArea);
}
if (Math.Sqrt(estArea) > 3500f)
{
if (LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogWarning("The maximum possible atlas size is 4096. Textures may be shrunk");
}
}
atlas = new Texture2D(1, 1, TextureFormat.ARGB32, true);
if (progressInfo != null)
{
progressInfo("Packing texture atlas " + prop.name, .25f);
}
if (propIdx == 0)
{
if (progressInfo != null)
{
progressInfo("Estimated min size of atlases: " + Math.Sqrt(estArea).ToString("F0"), .1f);
}
if (LOG_LEVEL >= MB2_LogLevel.info)
{
Debug.Log("Estimated atlas minimum size:" + Math.Sqrt(estArea).ToString("F0"));
}
int maxAtlasSize = 4096;
uvRects = atlas.PackTextures(texToPack, data._atlasPadding, maxAtlasSize, false);
if (LOG_LEVEL >= MB2_LogLevel.info)
{
Debug.Log("After pack textures atlas size " + atlas.width + " " + atlas.height);
}
atlasSizeX = atlas.width;
atlasSizeY = atlas.height;
atlas.Apply();
}
else
{
if (progressInfo != null)
{
progressInfo("Copying Textures Into: " + prop.name, .1f);
}
atlas = _copyTexturesIntoAtlas(texToPack, data._atlasPadding, uvRects, atlasSizeX, atlasSizeY, combiner);
}
}
atlases[propIdx] = atlas;
//----------------------
if (data._saveAtlasesAsAssets && textureEditorMethods != null)
{
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[propIdx], prop, propIdx, data.resultMaterial);
}
data.resultMaterial.SetTextureOffset(prop.name, Vector2.zero);
data.resultMaterial.SetTextureScale(prop.name, Vector2.one);
combiner._destroyTemporaryTextures(prop.name);
GC.Collect();
}
packedAtlasRects.rects = uvRects;
yield break;
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Rect[] uvRects = packedAtlasRects.rects;
if (data.distinctMaterialTextures.Count == 1 && data._fixOutOfBoundsUVs == false)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Only one image per atlas. Will re-use original texture");
}
uvRects = new Rect[1];
uvRects[0] = new Rect(0f, 0f, 1f, 1f);
for (int i = 0; i < data.numAtlases; i++)
{
MeshBakerMaterialTexture dmt = data.distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.GetTexture2D();
data.resultMaterial.SetTexture(data.texPropertyNames[i].name, atlases[i]);
data.resultMaterial.SetTextureScale(data.texPropertyNames[i].name, dmt.matTilingRect.size);
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, dmt.matTilingRect.min);
}
}
else
{
long estArea = 0;
int atlasSizeX = 1;
int atlasSizeY = 1;
uvRects = null;
for (int i = 0; i < data.numAtlases; i++)
{ //i is an atlas "MainTex", "BumpMap" etc...
//-----------------------
Texture2D atlas = null;
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(i, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.LogWarning("Beginning loop " + i + " num temporary textures " + combiner._temporaryTextures.Count);
}
for (int j = 0; j < data.distinctMaterialTextures.Count; j++)
{ //j is a distinct set of textures one for each of "MainTex", "BumpMap" etc...
MB_TexSet txs = data.distinctMaterialTextures[j];
int tWidth = txs.idealWidth;
int tHeight = txs.idealHeight;
Texture2D tx = txs.ts[i].GetTexture2D();
if (tx == null)
{
tx = txs.ts[i].t = combiner._createTemporaryTexture(tWidth, tHeight, TextureFormat.ARGB32, true);
if (data._considerNonTextureProperties && data.nonTexturePropertyBlender != null)
{
Color col = data.nonTexturePropertyBlender.GetColorIfNoTexture(txs.matsAndGOs.mats[0].mat, data.texPropertyNames[i]);
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log("Setting texture to solid color " + col);
}
MB_Utility.setSolidColor(tx, col);
}
else
{
Color col = MB3_TextureCombinerNonTextureProperties.GetColorIfNoTexture(data.texPropertyNames[i]);
MB_Utility.setSolidColor(tx, col);
}
}
if (progressInfo != null)
{
progressInfo("Adjusting for scale and offset " + tx, .01f);
}
if (textureEditorMethods != null)
{
textureEditorMethods.SetReadWriteFlag(tx, true, true);
}
tx = GetAdjustedForScaleAndOffset2(txs.ts[i], txs.obUVoffset, txs.obUVscale, data, combiner, LOG_LEVEL);
//create a resized copy if necessary
if (tx.width != tWidth || tx.height != tHeight)
{
if (progressInfo != null)
{
progressInfo("Resizing texture '" + tx + "'", .01f);
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.LogWarning("Copying and resizing texture " + data.texPropertyNames[i].name + " from " + tx.width + "x" + tx.height + " to " + tWidth + "x" + tHeight);
}
tx = combiner._resizeTexture((Texture2D)tx, tWidth, tHeight);
}
txs.ts[i].t = tx;
}
Texture2D[] texToPack = new Texture2D[data.distinctMaterialTextures.Count];
for (int j = 0; j < data.distinctMaterialTextures.Count; j++)
{
Texture2D tx = data.distinctMaterialTextures[j].ts[i].GetTexture2D();
estArea += tx.width * tx.height;
if (data._considerNonTextureProperties)
{
//combine the tintColor with the texture
tx = combiner._createTextureCopy(tx);
data.nonTexturePropertyBlender.TintTextureWithTextureCombiner(tx, data.distinctMaterialTextures[j], data.texPropertyNames[i]);
}
texToPack[j] = tx;
}
if (textureEditorMethods != null)
{
textureEditorMethods.CheckBuildSettings(estArea);
}
if (Math.Sqrt(estArea) > 3500f)
{
if (LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogWarning("The maximum possible atlas size is 4096. Textures may be shrunk");
}
}
atlas = new Texture2D(1, 1, TextureFormat.ARGB32, true);
if (progressInfo != null)
{
progressInfo("Packing texture atlas " + data.texPropertyNames[i].name, .25f);
}
if (i == 0)
{
if (progressInfo != null)
{
progressInfo("Estimated min size of atlases: " + Math.Sqrt(estArea).ToString("F0"), .1f);
}
if (LOG_LEVEL >= MB2_LogLevel.info)
{
Debug.Log("Estimated atlas minimum size:" + Math.Sqrt(estArea).ToString("F0"));
}
if (data.distinctMaterialTextures.Count == 1 && data._fixOutOfBoundsUVs == false)
{ //don't want to force power of 2 so tiling will still work
uvRects = new Rect[1] {
new Rect(0f, 0f, 1f, 1f)
};
atlas = _copyTexturesIntoAtlas(texToPack, data._atlasPadding, uvRects, texToPack[0].width, texToPack[0].height, combiner);
}
else
{
int maxAtlasSize = 4096;
uvRects = atlas.PackTextures(texToPack, data._atlasPadding, maxAtlasSize, false);
}
if (LOG_LEVEL >= MB2_LogLevel.info)
{
Debug.Log("After pack textures atlas size " + atlas.width + " " + atlas.height);
}
atlasSizeX = atlas.width;
atlasSizeY = atlas.height;
atlas.Apply();
}
else
{
if (progressInfo != null)
{
progressInfo("Copying Textures Into: " + data.texPropertyNames[i].name, .1f);
}
atlas = _copyTexturesIntoAtlas(texToPack, data._atlasPadding, uvRects, atlasSizeX, atlasSizeY, combiner);
}
}
atlases[i] = atlas;
//----------------------
if (data._saveAtlasesAsAssets && textureEditorMethods != null)
{
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[i], data.texPropertyNames[i], i, data.resultMaterial);
}
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, Vector2.zero);
data.resultMaterial.SetTextureScale(data.texPropertyNames[i].name, Vector2.one);
combiner._destroyTemporaryTextures(); // need to save atlases before doing this
GC.Collect();
}
}
packedAtlasRects.rects = uvRects;
yield break;
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Rect[] uvRects = packedAtlasRects.rects;
if (uvRects.Length == 1)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Only one image per atlas. Will re-use original texture");
}
for (int i = 0; i < data.numAtlases; i++)
{
MeshBakerMaterialTexture dmt = data.distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.GetTexture2D();
data.resultMaterial.SetTexture(data.texPropertyNames[i].name, atlases[i]);
data.resultMaterial.SetTextureScale(data.texPropertyNames[i].name, dmt.matTilingRect.size);
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, dmt.matTilingRect.min);
}
}
else
{
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY);
}
for (int propIdx = 0; propIdx < data.numAtlases; propIdx++)
{
Texture2D atlas = null;
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("=== Not creating atlas for " + data.texPropertyNames[propIdx].name + " because textures are null and default value parameters are the same.");
}
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("=== Creating atlas for " + data.texPropertyNames[propIdx].name);
}
GC.Collect();
//use a jagged array because it is much more efficient in memory
Color[][] atlasPixels = new Color[atlasSizeY][];
for (int j = 0; j < atlasPixels.Length; j++)
{
atlasPixels[j] = new Color[atlasSizeX];
}
bool isNormalMap = false;
if (data.texPropertyNames[propIdx].isNormalMap)
{
isNormalMap = true;
}
for (int texSetIdx = 0; texSetIdx < data.distinctMaterialTextures.Count; texSetIdx++)
{
string s = "Creating Atlas '" + data.texPropertyNames[propIdx].name + "' texture " + data.distinctMaterialTextures[texSetIdx];
if (progressInfo != null)
{
progressInfo(s, .01f);
}
MB_TexSet texSet = data.distinctMaterialTextures[texSetIdx];
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log(string.Format("Adding texture {0} to atlas {1}", texSet.ts[propIdx].GetTexture2D() == null ? "null" : texSet.ts[propIdx].GetTexName(), data.texPropertyNames[propIdx]));
}
Rect r = uvRects[texSetIdx];
Texture2D t = texSet.ts[propIdx].GetTexture2D();
int x = Mathf.RoundToInt(r.x * atlasSizeX);
int y = Mathf.RoundToInt(r.y * atlasSizeY);
int ww = Mathf.RoundToInt(r.width * atlasSizeX);
int hh = Mathf.RoundToInt(r.height * atlasSizeY);
if (ww == 0 || hh == 0)
{
Debug.LogError("Image in atlas has no height or width " + r);
}
if (progressInfo != null)
{
progressInfo(s + " set ReadWrite flag", .01f);
}
if (textureEditorMethods != null)
{
textureEditorMethods.SetReadWriteFlag(t, true, true);
}
if (progressInfo != null)
{
progressInfo(s + "Copying to atlas: '" + texSet.ts[propIdx].GetTexName() + "'", .02f);
}
DRect samplingRect = texSet.ts[propIdx].encapsulatingSamplingRect;
yield return(CopyScaledAndTiledToAtlas(texSet.ts[propIdx], texSet, data.texPropertyNames[propIdx], samplingRect, x, y, ww, hh, packedAtlasRects.padding[texSetIdx], atlasPixels, isNormalMap, data, combiner, progressInfo, LOG_LEVEL));
// Debug.Log("after copyScaledAndTiledAtlas");
}
yield return(data.numAtlases);
if (progressInfo != null)
{
progressInfo("Applying changes to atlas: '" + data.texPropertyNames[propIdx].name + "'", .03f);
}
atlas = new Texture2D(atlasSizeX, atlasSizeY, TextureFormat.ARGB32, true);
for (int j = 0; j < atlasPixels.Length; j++)
{
atlas.SetPixels(0, j, atlasSizeX, 1, atlasPixels[j]);
}
atlas.Apply();
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Saving atlas " + data.texPropertyNames[propIdx].name + " w=" + atlas.width + " h=" + atlas.height);
}
}
atlases[propIdx] = atlas;
if (progressInfo != null)
{
progressInfo("Saving atlas: '" + data.texPropertyNames[propIdx].name + "'", .04f);
}
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
if (data._saveAtlasesAsAssets && textureEditorMethods != null)
{
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[propIdx], data.texPropertyNames[propIdx], propIdx, data.resultMaterial);
}
else
{
data.resultMaterial.SetTexture(data.texPropertyNames[propIdx].name, atlases[propIdx]);
}
data.resultMaterial.SetTextureOffset(data.texPropertyNames[propIdx].name, Vector2.zero);
data.resultMaterial.SetTextureScale(data.texPropertyNames[propIdx].name, Vector2.one);
combiner._destroyTemporaryTextures(); // need to save atlases before doing this
}
}
//data.rectsInAtlas = uvRects;
// Debug.Log("finished!");
yield break;
}
public static AtlasPackingResult MergeAtlasPackingResultStackBonA(AtlasPackingResult a,
AtlasPackingResult b, int maxHeightDim, int maxWidthDim, bool stretchBToAtlasWidth)
{
Debug.Assert(a.usedW == a.atlasX);
Debug.Assert(a.usedH == a.atlasY);
Debug.Assert(b.usedW == b.atlasX);
Debug.Assert(b.usedH == b.atlasY);
Debug.Assert(a.usedW <= maxWidthDim, a.usedW + " " + maxWidthDim);
Debug.Assert(a.usedH <= maxHeightDim, a.usedH + " " + maxHeightDim);
Debug.Assert(b.usedH <= maxHeightDim);
Debug.Assert(b.usedW <= maxWidthDim);
Rect AatlasToFinal;
Rect BatlasToFinal;
// first calc height scale and offset
float finalH = a.usedH + b.usedH;
float scaleYa, scaleYb;
if (finalH > maxHeightDim)
{
scaleYa = maxHeightDim / finalH; //0,1
float offsetBy = ((float)Mathf.FloorToInt(a.usedH * scaleYa)) / maxHeightDim; //0,1
scaleYa = offsetBy;
scaleYb = (1f - offsetBy);
AatlasToFinal = new Rect(0, 0, 1, scaleYa);
BatlasToFinal = new Rect(0, offsetBy, 1, scaleYb);
}
else
{
float offsetBy = a.usedH / finalH;
AatlasToFinal = new Rect(0, 0, 1, offsetBy);
BatlasToFinal = new Rect(0, offsetBy, 1, b.usedH / finalH);
}
//next calc width scale and offset
if (a.atlasX > b.atlasX)
{
if (!stretchBToAtlasWidth)
{
// b rects will be placed in a larger atlas which will make them smaller
BatlasToFinal.width = ((float)b.atlasX) / a.atlasX;
}
}
else if (b.atlasX > a.atlasX)
{
// a rects will be placed in a larger atlas which will make them smaller
AatlasToFinal.width = ((float)a.atlasX) / b.atlasX;
}
Rect[] newRects = new Rect[a.rects.Length + b.rects.Length];
AtlasPadding[] paddings = new AtlasPadding[a.rects.Length + b.rects.Length];
int[] srcImgIdxs = new int[a.rects.Length + b.rects.Length];
Array.Copy(a.padding, paddings, a.padding.Length);
Array.Copy(b.padding, 0, paddings, a.padding.Length, b.padding.Length);
Array.Copy(a.srcImgIdxs, srcImgIdxs, a.srcImgIdxs.Length);
Array.Copy(b.srcImgIdxs, 0, srcImgIdxs, a.srcImgIdxs.Length, b.srcImgIdxs.Length);
Array.Copy(a.rects, newRects, a.rects.Length);
int atlasX = Mathf.Max(a.usedW, b.usedW);
int atlasY = a.usedH + b.usedH;
float maxx = 0f;
float maxy = 0f;
for (int i = 0; i < a.rects.Length; i++)
{
Rect r = a.rects[i];
r.x = AatlasToFinal.x + r.x * AatlasToFinal.width;
r.y = AatlasToFinal.y + r.y * AatlasToFinal.height;
r.width *= AatlasToFinal.width;
r.height *= AatlasToFinal.height;
maxx = Mathf.Max(maxx, r.xMax);
maxy = Mathf.Max(maxy, r.yMax);
newRects[i] = r;
srcImgIdxs[i] = a.srcImgIdxs[i];
}
for (int i = 0; i < b.rects.Length; i++)
{
Rect r = b.rects[i];
r.x = BatlasToFinal.x + r.x * BatlasToFinal.width;
r.y = BatlasToFinal.y + r.y * BatlasToFinal.height;
r.width *= BatlasToFinal.width;
r.height *= BatlasToFinal.height;
maxx = Mathf.Max(maxx, r.xMax);
maxy = Mathf.Max(maxy, r.yMax);
newRects[a.rects.Length + i] = r;
srcImgIdxs[a.rects.Length + i] = b.srcImgIdxs[i];
}
AtlasPackingResult res = new AtlasPackingResult(paddings);
res.atlasX = atlasX;
res.atlasY = atlasY;
res.padding = paddings;
res.rects = newRects;
res.srcImgIdxs = srcImgIdxs;
res.CalcUsedWidthAndHeight();
return(res);
}
public override AtlasPackingResult[] CalculateAtlasRectangles(MB3_TextureCombinerPipeline.TexturePipelineData data, bool doMultiAtlas, MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(!data.OnlyOneTextureInAtlasReuseTextures());
//TODO parameter
int maxAtlasWidth = 512;
Debug.Assert(data._packingAlgorithm != MB2_PackingAlgorithmEnum.UnitysPackTextures, "Unity texture packer cannot be used");
//split the list of distinctMaterialTextures into two bins
List <MB_TexSet> horizontalVerticalDistinctMaterialTextures = new List <MB_TexSet>();
List <MB_TexSet> regularTextures = new List <MB_TexSet>();
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
MB_TexSet texSet = data.distinctMaterialTextures[i];
if (texSet.idealWidth >= maxAtlasWidth &&
texSet.ts[0].GetEncapsulatingSamplingRect().width > 1f)
{
horizontalVerticalDistinctMaterialTextures.Add(texSet);
}
else
{
regularTextures.Add(texSet);
}
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(String.Format("Splitting list of distinctMaterialTextures numHorizontalVertical={0} numRegular={1}", horizontalVerticalDistinctMaterialTextures.Count, regularTextures.Count));
}
//pack one with the horizontal texture packer
MB2_TexturePacker tp;
MB2_PackingAlgorithmEnum packingAlgorithm;
int atlasMaxDimension = data._maxAtlasSize;
AtlasPackingResult[] packerRectsHorizontalVertical;
if (horizontalVerticalDistinctMaterialTextures.Count > 0)
{
packingAlgorithm = MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Horizontal;
List <Vector2> imageSizesHorizontalVertical = new List <Vector2>();
for (int i = 0; i < horizontalVerticalDistinctMaterialTextures.Count; i++)
{
horizontalVerticalDistinctMaterialTextures[i].SetTilingTreatmentAndAdjustEncapsulatingSamplingRect(MB_TextureTilingTreatment.edgeToEdgeX);
imageSizesHorizontalVertical.Add(new Vector2(horizontalVerticalDistinctMaterialTextures[i].idealWidth, horizontalVerticalDistinctMaterialTextures[i].idealHeight));
}
tp = MB3_TextureCombinerPipeline.CreateTexturePacker(packingAlgorithm);
tp.atlasMustBePowerOfTwo = false;
List <AtlasPadding> paddingsHorizontalVertical = new List <AtlasPadding>();
for (int i = 0; i < imageSizesHorizontalVertical.Count; i++)
{
AtlasPadding padding = new AtlasPadding();
padding.topBottom = data._atlasPadding;
padding.leftRight = data._atlasPadding;
if (packingAlgorithm == MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Horizontal)
{
padding.leftRight = 0;
}
if (packingAlgorithm == MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Vertical)
{
padding.topBottom = 0;
}
paddingsHorizontalVertical.Add(padding);
}
tp.LOG_LEVEL = MB2_LogLevel.trace;
packerRectsHorizontalVertical = tp.GetRects(imageSizesHorizontalVertical, paddingsHorizontalVertical, maxAtlasWidth, atlasMaxDimension, false);
}
else
{
packerRectsHorizontalVertical = new AtlasPackingResult[0];
}
AtlasPackingResult[] packerRectsRegular;
if (regularTextures.Count > 0)
{
//pack other with regular texture packer
packingAlgorithm = MB2_PackingAlgorithmEnum.MeshBakerTexturePacker;
List <Vector2> imageSizesRegular = new List <Vector2>();
for (int i = 0; i < regularTextures.Count; i++)
{
imageSizesRegular.Add(new Vector2(regularTextures[i].idealWidth, regularTextures[i].idealHeight));
}
tp = MB3_TextureCombinerPipeline.CreateTexturePacker(MB2_PackingAlgorithmEnum.MeshBakerTexturePacker);
tp.atlasMustBePowerOfTwo = false;
List <AtlasPadding> paddingsRegular = new List <AtlasPadding>();
for (int i = 0; i < imageSizesRegular.Count; i++)
{
AtlasPadding padding = new AtlasPadding();
padding.topBottom = data._atlasPadding;
padding.leftRight = data._atlasPadding;
paddingsRegular.Add(padding);
}
tp.LOG_LEVEL = MB2_LogLevel.trace;
packerRectsRegular = tp.GetRects(imageSizesRegular, paddingsRegular, maxAtlasWidth, atlasMaxDimension, false);
}
else
{
packerRectsRegular = new AtlasPackingResult[0];
}
AtlasPackingResult result = null;
if (packerRectsHorizontalVertical.Length == 0 && packerRectsRegular.Length == 0)
{
Debug.Assert(false, "Should never have reached this.");
return(null);
}
else if (packerRectsHorizontalVertical.Length > 0 && packerRectsRegular.Length > 0)
{
result = MergeAtlasPackingResultStackBonA(packerRectsHorizontalVertical[0], packerRectsRegular[0], atlasMaxDimension, maxAtlasWidth, true);
}
else if (packerRectsHorizontalVertical.Length > 0)
{
Debug.LogError("TODO handle this");
result = packerRectsHorizontalVertical[0];
}
else if (packerRectsRegular.Length > 0)
{
Debug.LogError("TODO handle this.");
result = packerRectsRegular[0];
}
Debug.Assert(data.distinctMaterialTextures.Count == result.rects.Length);
//We re-ordered the distinctMaterial textures so replace the list with the new reordered one
horizontalVerticalDistinctMaterialTextures.AddRange(regularTextures);
data.distinctMaterialTextures = horizontalVerticalDistinctMaterialTextures;
AtlasPackingResult[] results;
if (result != null)
{
results = new AtlasPackingResult[] { result }
}
;
else
{
results = new AtlasPackingResult[0];
}
return(results);
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Rect[] uvRects = packedAtlasRects.rects;
if (uvRects.Length == 1)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Only one image per atlas. Will re-use original texture");
}
for (int i = 0; i < data.numAtlases; i++)
{
MeshBakerMaterialTexture dmt = data.distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.GetTexture2D();
data.resultMaterial.SetTexture(data.texPropertyNames[i].name, atlases[i]);
data.resultMaterial.SetTextureScale(data.texPropertyNames[i].name, dmt.matTilingRect.size);
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, dmt.matTilingRect.min);
}
}
else
{
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY);
}
//create a game object
GameObject renderAtlasesGO = null;
try
{
renderAtlasesGO = new GameObject("MBrenderAtlasesGO");
MB3_AtlasPackerRenderTexture atlasRenderTexture = renderAtlasesGO.AddComponent <MB3_AtlasPackerRenderTexture>();
renderAtlasesGO.AddComponent <Camera>();
if (data._considerNonTextureProperties)
{
if (LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogWarning("Blend Non-Texture Properties has limited functionality when used with Mesh Baker Texture Packer Fast.");
}
}
for (int i = 0; i < data.numAtlases; i++)
{
Texture2D atlas = null;
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(i, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Not creating atlas for " + data.texPropertyNames[i].name + " because textures are null and default value parameters are the same.");
}
}
else
{
GC.Collect();
if (progressInfo != null)
{
progressInfo("Creating Atlas '" + data.texPropertyNames[i].name + "'", .01f);
}
// ===========
// configure it
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("About to render " + data.texPropertyNames[i].name + " isNormal=" + data.texPropertyNames[i].isNormalMap);
}
atlasRenderTexture.LOG_LEVEL = LOG_LEVEL;
atlasRenderTexture.width = atlasSizeX;
atlasRenderTexture.height = atlasSizeY;
atlasRenderTexture.padding = data._atlasPadding;
atlasRenderTexture.rects = uvRects;
atlasRenderTexture.textureSets = data.distinctMaterialTextures;
atlasRenderTexture.indexOfTexSetToRender = i;
atlasRenderTexture.texPropertyName = data.texPropertyNames[i];
atlasRenderTexture.isNormalMap = data.texPropertyNames[i].isNormalMap;
atlasRenderTexture.fixOutOfBoundsUVs = data._fixOutOfBoundsUVs;
atlasRenderTexture.considerNonTextureProperties = data._considerNonTextureProperties;
atlasRenderTexture.resultMaterialTextureBlender = data.nonTexturePropertyBlender;
// call render on it
atlas = atlasRenderTexture.OnRenderAtlas(combiner);
// destroy it
// =============
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Saving atlas " + data.texPropertyNames[i].name + " w=" + atlas.width + " h=" + atlas.height + " id=" + atlas.GetInstanceID());
}
}
atlases[i] = atlas;
if (progressInfo != null)
{
progressInfo("Saving atlas: '" + data.texPropertyNames[i].name + "'", .04f);
}
if (data._saveAtlasesAsAssets && textureEditorMethods != null)
{
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[i], data.texPropertyNames[i], i, data.resultMaterial);
}
else
{
data.resultMaterial.SetTexture(data.texPropertyNames[i].name, atlases[i]);
}
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, Vector2.zero);
data.resultMaterial.SetTextureScale(data.texPropertyNames[i].name, Vector2.one);
combiner._destroyTemporaryTextures(); // need to save atlases before doing this
}
}
catch (Exception ex)
{
//Debug.LogError(ex);
Debug.LogException(ex);
}
finally
{
if (renderAtlasesGO != null)
{
MB_Utility.Destroy(renderAtlasesGO);
}
}
}
yield break;
}
public abstract IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL);
private static AtlasPackingResult MergeAtlasPackingResultStackBonA(AtlasPackingResult a,
AtlasPackingResult b, int maxWidthDim, int maxHeightDim, bool stretchBToAtlasWidth, IPipeline pipeline)
{
Debug.Assert(a.usedW == a.atlasX);
Debug.Assert(a.usedH == a.atlasY);
Debug.Assert(b.usedW == b.atlasX);
Debug.Assert(b.usedH == b.atlasY);
Debug.Assert(a.usedW <= maxWidthDim, a.usedW + " " + maxWidthDim);
Debug.Assert(a.usedH <= maxHeightDim, a.usedH + " " + maxHeightDim);
Debug.Assert(b.usedH <= maxHeightDim);
Debug.Assert(b.usedW <= maxWidthDim, b.usedW + " " + maxWidthDim);
Rect AatlasToFinal;
Rect BatlasToFinal;
// first calc height scale and offset
int atlasX;
int atlasY;
pipeline.MergeAtlasPackingResultStackBonAInternal(a, b, out AatlasToFinal, out BatlasToFinal, stretchBToAtlasWidth, maxWidthDim, maxHeightDim, out atlasX, out atlasY);
Rect[] newRects = new Rect[a.rects.Length + b.rects.Length];
AtlasPadding[] paddings = new AtlasPadding[a.rects.Length + b.rects.Length];
int[] srcImgIdxs = new int[a.rects.Length + b.rects.Length];
Array.Copy(a.padding, paddings, a.padding.Length);
Array.Copy(b.padding, 0, paddings, a.padding.Length, b.padding.Length);
Array.Copy(a.srcImgIdxs, srcImgIdxs, a.srcImgIdxs.Length);
Array.Copy(b.srcImgIdxs, 0, srcImgIdxs, a.srcImgIdxs.Length, b.srcImgIdxs.Length);
Array.Copy(a.rects, newRects, a.rects.Length);
for (int i = 0; i < a.rects.Length; i++)
{
Rect r = a.rects[i];
r.x = AatlasToFinal.x + r.x * AatlasToFinal.width;
r.y = AatlasToFinal.y + r.y * AatlasToFinal.height;
r.width *= AatlasToFinal.width;
r.height *= AatlasToFinal.height;
Debug.Assert(r.max.x <= 1f);
Debug.Assert(r.max.y <= 1f);
Debug.Assert(r.min.x >= 0f);
Debug.Assert(r.min.y >= 0f);
newRects[i] = r;
srcImgIdxs[i] = a.srcImgIdxs[i];
}
for (int i = 0; i < b.rects.Length; i++)
{
Rect r = b.rects[i];
r.x = BatlasToFinal.x + r.x * BatlasToFinal.width;
r.y = BatlasToFinal.y + r.y * BatlasToFinal.height;
r.width *= BatlasToFinal.width;
r.height *= BatlasToFinal.height;
Debug.Assert(r.max.x <= 1f);
Debug.Assert(r.max.y <= 1f);
Debug.Assert(r.min.x >= 0f);
Debug.Assert(r.min.y >= 0f);
newRects[a.rects.Length + i] = r;
srcImgIdxs[a.rects.Length + i] = b.srcImgIdxs[i];
}
AtlasPackingResult res = new AtlasPackingResult(paddings);
res.atlasX = atlasX;
res.atlasY = atlasY;
res.padding = paddings;
res.rects = newRects;
res.srcImgIdxs = srcImgIdxs;
res.CalcUsedWidthAndHeight();
return(res);
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(!data.OnlyOneTextureInAtlasReuseTextures());
Rect[] uvRects = packedAtlasRects.rects;
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY);
}
int layer = data._layerTexturePackerFastV2;
Debug.Assert(layer >= 0 && layer <= 32);
//create a game object
mesh = new Mesh();
renderAtlasesGO = null;
cameraGameObject = null;
try
{
System.Diagnostics.Stopwatch db_time_MB3_TextureCombinerPackerMeshBakerFastV2_CreateAtlases = new System.Diagnostics.Stopwatch();
db_time_MB3_TextureCombinerPackerMeshBakerFastV2_CreateAtlases.Start();
renderAtlasesGO = new GameObject("MBrenderAtlasesGO");
cameraGameObject = new GameObject("MBCameraGameObject");
MB3_AtlasPackerRenderTextureUsingMesh atlasRenderer = new MB3_AtlasPackerRenderTextureUsingMesh();
OneTimeSetup(atlasRenderer, renderAtlasesGO, cameraGameObject, atlasSizeX, atlasSizeY, data._atlasPadding, layer, LOG_LEVEL);
if (data._considerNonTextureProperties && LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogWarning("Blend Non-Texture Properties has limited functionality when used with Mesh Baker Texture Packer Fast.");
}
List <Material> mats = new List <Material>();
for (int propIdx = 0; propIdx < data.numAtlases; propIdx++)
{
Texture2D atlas = null;
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Not creating atlas for " + data.texPropertyNames[propIdx].name + " because textures are null and default value parameters are the same.");
}
}
else
{
if (progressInfo != null)
{
progressInfo("Creating Atlas '" + data.texPropertyNames[propIdx].name + "'", .01f);
}
// configure it
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("About to render " + data.texPropertyNames[propIdx].name + " isNormal=" + data.texPropertyNames[propIdx].isNormalMap);
}
// Create the mesh
mats.Clear();
MB3_AtlasPackerRenderTextureUsingMesh.MeshAtlas.BuildAtlas(packedAtlasRects, data.distinctMaterialTextures, propIdx, packedAtlasRects.atlasX, packedAtlasRects.atlasY, mesh, mats, data.texPropertyNames[propIdx], data, combiner, textureEditorMethods, LOG_LEVEL);
{
MeshFilter mf = renderAtlasesGO.GetComponent <MeshFilter>();
mf.sharedMesh = mesh;
MeshRenderer mrr = renderAtlasesGO.GetComponent <MeshRenderer>();
Material[] mrs = mats.ToArray();
mrr.sharedMaterials = mrs;
}
// Render
atlas = atlasRenderer.DoRenderAtlas(cameraGameObject, packedAtlasRects.atlasX, packedAtlasRects.atlasY, data.texPropertyNames[propIdx].isNormalMap, data.texPropertyNames[propIdx]);
{
for (int i = 0; i < mats.Count; i++)
{
MB_Utility.Destroy(mats[i]);
}
mats.Clear();
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Saving atlas " + data.texPropertyNames[propIdx].name + " w=" + atlas.width + " h=" + atlas.height + " id=" + atlas.GetInstanceID());
}
}
atlases[propIdx] = atlas;
if (progressInfo != null)
{
progressInfo("Saving atlas: '" + data.texPropertyNames[propIdx].name + "'", .04f);
}
if (data.resultType == MB2_TextureBakeResults.ResultType.atlas)
{
MB3_TextureCombinerPackerRoot.SaveAtlasAndConfigureResultMaterial(data, textureEditorMethods, atlases[propIdx], data.texPropertyNames[propIdx], propIdx);
}
combiner._destroyTemporaryTextures(data.texPropertyNames[propIdx].name); // need to save atlases before doing this
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.LogFormat("Timing MB3_TextureCombinerPackerMeshBakerFastV2.CreateAtlases={0}",
db_time_MB3_TextureCombinerPackerMeshBakerFastV2_CreateAtlases.ElapsedMilliseconds * .001f);
}
}
catch (Exception ex)
{
Debug.LogError(ex.Message + "\n" + ex.StackTrace.ToString());
}
finally
{
if (renderAtlasesGO != null)
{
MB_Utility.Destroy(renderAtlasesGO);
}
if (cameraGameObject != null)
{
MB_Utility.Destroy(cameraGameObject);
}
if (mesh != null)
{
MB_Utility.Destroy(mesh);
}
}
yield break;
}
//----------------- Algorithm for fitting everything into multiple Atlases
//
// for images being added calc area, maxW, maxH. A perfectly packed atlas will match area exactly. atlas must be at least maxH and maxW in size.
// Sort images from big to small using either height, width or area comparer
//
// If an image is bigger than maxDim, then shrink it to max size on the largest dimension
// distribute images using the new algorithm, should never have to expand the atlas instead create new atlases as needed
// should not need to scale atlases
//
AtlasPackingResult[] _GetRectsMultiAtlas(List <Vector2> imgWidthHeights, List <AtlasPadding> paddings, int maxDimensionPassedX, int maxDimensionPassedY, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(String.Format("_GetRects numImages={0}, maxDimensionX={1}, maxDimensionY={2} minImageSizeX={3}, minImageSizeY={4}, masterImageSizeX={5}, masterImageSizeY={6}",
imgWidthHeights.Count, maxDimensionPassedX, maxDimensionPassedY, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY));
}
float area = 0;
int maxW = 0;
int maxH = 0;
Image[] imgsToAdd = new Image[imgWidthHeights.Count];
int maxDimensionX = maxDimensionPassedX;
int maxDimensionY = maxDimensionPassedY;
if (atlasMustBePowerOfTwo)
{
maxDimensionX = RoundToNearestPositivePowerOfTwo(maxDimensionX);
maxDimensionY = RoundToNearestPositivePowerOfTwo(maxDimensionY);
}
for (int i = 0; i < imgsToAdd.Length; i++)
{
int iw = (int)imgWidthHeights[i].x;
int ih = (int)imgWidthHeights[i].y;
//shrink the image so that it fits in maxDimenion if it is larger than maxDimension if atlas exceeds maxDim x maxDim then new alas will be created
iw = Mathf.Min(iw, maxDimensionX - paddings[i].leftRight * 2);
ih = Mathf.Min(ih, maxDimensionY - paddings[i].topBottom * 2);
Image im = imgsToAdd[i] = new Image(i, iw, ih, paddings[i], minImageSizeX, minImageSizeY);
area += im.w * im.h;
maxW = Mathf.Max(maxW, im.w);
maxH = Mathf.Max(maxH, im.h);
}
//explore the space to find a resonably efficient packing
//int sqrtArea = (int)Mathf.Sqrt(area);
int idealAtlasW;
int idealAtlasH;
if (atlasMustBePowerOfTwo)
{
idealAtlasH = RoundToNearestPositivePowerOfTwo(maxDimensionY);
idealAtlasW = RoundToNearestPositivePowerOfTwo(maxDimensionX);
}
else
{
idealAtlasH = maxDimensionY;
idealAtlasW = maxDimensionX;
}
if (idealAtlasW == 0)
{
idealAtlasW = 4;
}
if (idealAtlasH == 0)
{
idealAtlasH = 4;
}
ProbeResult pr = new ProbeResult();
Array.Sort(imgsToAdd, new ImageHeightComparer());
if (ProbeMultiAtlas(imgsToAdd, idealAtlasW, idealAtlasH, area, maxDimensionX, maxDimensionY, pr))
{
bestRoot = pr;
}
Array.Sort(imgsToAdd, new ImageWidthComparer());
if (ProbeMultiAtlas(imgsToAdd, idealAtlasW, idealAtlasH, area, maxDimensionX, maxDimensionY, pr))
{
if (pr.totalAtlasArea < bestRoot.totalAtlasArea)
{
bestRoot = pr;
}
}
Array.Sort(imgsToAdd, new ImageAreaComparer());
if (ProbeMultiAtlas(imgsToAdd, idealAtlasW, idealAtlasH, area, maxDimensionX, maxDimensionY, pr))
{
if (pr.totalAtlasArea < bestRoot.totalAtlasArea)
{
bestRoot = pr;
}
}
if (bestRoot == null)
{
return(null);
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Best fit found: w=" + bestRoot.w + " h=" + bestRoot.h + " efficiency=" + bestRoot.efficiency + " squareness=" + bestRoot.squareness + " fits in max dimension=" + bestRoot.largerOrEqualToMaxDim);
}
//the atlas can be larger than the max dimension scale it if this is the case
//int newMinSizeX = minImageSizeX;
//int newMinSizeY = minImageSizeY;
List <AtlasPackingResult> rs = new List <AtlasPackingResult>();
// find all Nodes that are an individual atlas
List <Node> atlasNodes = new List <Node>();
Stack <Node> stack = new Stack <Node>();
Node node = bestRoot.root;
while (node != null)
{
stack.Push(node);
node = node.child[0];
}
// traverse the tree collecting atlasNodes
while (stack.Count > 0)
{
node = stack.Pop();
if (node.isFullAtlas == NodeType.maxDim)
{
atlasNodes.Add(node);
}
if (node.child[1] != null)
{
node = node.child[1];
while (node != null)
{
stack.Push(node);
node = node.child[0];
}
}
}
//pack atlases so they all fit
for (int i = 0; i < atlasNodes.Count; i++)
{
List <Image> images = new List <Image>();
flattenTree(atlasNodes[i], images);
Rect[] rss = new Rect[images.Count];
int[] srcImgIdx = new int[images.Count];
for (int j = 0; j < images.Count; j++)
{
rss[j] = (new Rect(images[j].x - atlasNodes[i].r.x, images[j].y, images[j].w, images[j].h));
srcImgIdx[j] = images[j].imgId;
}
AtlasPackingResult res = new AtlasPackingResult(paddings.ToArray());
GetExtent(atlasNodes[i], ref res.usedW, ref res.usedH);
res.usedW -= atlasNodes[i].r.x;
int outW = atlasNodes[i].r.w;
int outH = atlasNodes[i].r.h;
if (atlasMustBePowerOfTwo)
{
outW = Mathf.Min(CeilToNearestPowerOfTwo(res.usedW), atlasNodes[i].r.w);
outH = Mathf.Min(CeilToNearestPowerOfTwo(res.usedH), atlasNodes[i].r.h);
if (outH < outW / 2)
{
outH = outW / 2; //smaller dim can't be less than half larger
}
if (outW < outH / 2)
{
outW = outH / 2;
}
}
else
{
outW = res.usedW;
outH = res.usedH;
}
res.atlasY = outH;
res.atlasX = outW;
res.rects = rss;
res.srcImgIdxs = srcImgIdx;
res.CalcUsedWidthAndHeight();
rs.Add(res);
ConvertToRectsWithoutPaddingAndNormalize01(res, paddings[i]);
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug(String.Format("Done GetRects "));
}
}
return(rs.ToArray());
}
internal static void BuildAtlas(
AtlasPackingResult packedAtlasRects,
List <MB_TexSet> distinctMaterialTextures,
int propIdx,
int atlasSizeX, int atlasSizeY,
Mesh m,
List <Material> generatedMats,
ShaderTextureProperty property,
MB3_TextureCombinerPipeline.TexturePipelineData data,
MB3_TextureCombiner combiner,
MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
// Collect vertices and quads for mesh that we will use for the atlas.
Debug.Assert(generatedMats.Count == 0, "Previous mats should have been destroyed");
generatedMats.Clear();
List <Vector3> vs = new List <Vector3>();
List <Vector2> uvs = new List <Vector2>();
// One submesh and material per texture that we are packing
List <int>[] ts = new List <int> [distinctMaterialTextures.Count];
for (int i = 0; i < ts.Length; i++)
{
ts[i] = new List <int>();
}
MeshBakerMaterialTexture.readyToBuildAtlases = true;
GC.Collect();
MB3_TextureCombinerPackerRoot.CreateTemporaryTexturesForAtlas(data.distinctMaterialTextures, combiner, propIdx, data);
Rect[] uvRects = packedAtlasRects.rects;
for (int texSetIdx = 0; texSetIdx < distinctMaterialTextures.Count; texSetIdx++)
{
MB_TexSet texSet = distinctMaterialTextures[texSetIdx];
MeshBakerMaterialTexture matTex = texSet.ts[propIdx];
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log(string.Format("Adding texture {0} to atlas {1} for texSet {2} srcMat {3}", matTex.GetTexName(), property.name, texSetIdx, texSet.matsAndGOs.mats[0].GetMaterialName()));
}
Rect r = uvRects[texSetIdx];
Texture2D t = matTex.GetTexture2D();
int x = Mathf.RoundToInt(r.x * atlasSizeX);
int y = Mathf.RoundToInt(r.y * atlasSizeY);
int ww = Mathf.RoundToInt(r.width * atlasSizeX);
int hh = Mathf.RoundToInt(r.height * atlasSizeY);
r = new Rect(x, y, ww, hh);
if (ww == 0 || hh == 0)
{
Debug.LogError("Image in atlas has no height or width " + r);
}
DRect samplingRect = texSet.ts[propIdx].GetEncapsulatingSamplingRect();
Debug.Assert(!texSet.ts[propIdx].isNull, string.Format("Adding texture {0} to atlas {1} for texSet {2} srcMat {3}", matTex.GetTexName(), property.name, texSetIdx, texSet.matsAndGOs.mats[0].GetMaterialName()));
AtlasPadding padding = packedAtlasRects.padding[texSetIdx];
AddNineSlicedRect(r, padding.leftRight, padding.topBottom, samplingRect.GetRect(), vs, uvs, ts[texSetIdx], t.width, t.height, t.name);
Material mt = new Material(Shader.Find("MeshBaker/Unlit/UnlitWithAlpha"));
bool isSavingAsANormalMapAssetThatWillBeImported = property.isNormalMap && data._saveAtlasesAsAssets;
MBVersion.PipelineType pipelineType = MBVersion.DetectPipeline();
if (pipelineType == MBVersion.PipelineType.URP)
{
ConfigureMaterial_DefaultPipeline(mt, t, isSavingAsANormalMapAssetThatWillBeImported, LOG_LEVEL);
//ConfigureMaterial_URP(mt, t, isSavingAsANormalMapAssetThatWillBeImported, LOG_LEVEL);
}
else if (pipelineType == MBVersion.PipelineType.HDRP)
{
ConfigureMaterial_DefaultPipeline(mt, t, isSavingAsANormalMapAssetThatWillBeImported, LOG_LEVEL);
}
else
{
ConfigureMaterial_DefaultPipeline(mt, t, isSavingAsANormalMapAssetThatWillBeImported, LOG_LEVEL);
}
generatedMats.Add(mt);
}
// Apply to the mesh
m.Clear();
m.vertices = vs.ToArray();
m.uv = uvs.ToArray();
m.subMeshCount = ts.Length;
for (int i = 0; i < m.subMeshCount; i++)
{
m.SetIndices(ts[i].ToArray(), MeshTopology.Triangles, i);
}
MeshBakerMaterialTexture.readyToBuildAtlases = false;
}
AtlasPackingResult[] _GetRectsMultiAtlasHorizontal(List <Vector2> imgWidthHeights, int maxDimensionPassed, int padding, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY)
{
List <AtlasPackingResult> rs = new List <AtlasPackingResult>();
int extent = 0;
int maxh = 0;
int maxw = 0;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Packing rects for: " + imgWidthHeights.Count);
}
List <Image> allImages = new List <Image>();
for (int i = 0; i < imgWidthHeights.Count; i++)
{
Image im = new Image(i, (int)imgWidthHeights[i].x, (int)imgWidthHeights[i].y, padding, minImageSizeX, minImageSizeY);
im.w -= padding * 2;
allImages.Add(im);
}
allImages.Sort(new ImageHeightComparer());
List <Image> images = new List <Image>();
List <Rect> rects = new List <Rect>();
int spaceRemaining = maxDimensionPassed;
while (allImages.Count > 0 || images.Count > 0)
{
Image im = PopLargestThatFits(allImages, spaceRemaining, maxDimensionPassed, images.Count == 0);
if (im == null)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Atlas filled creating a new atlas ");
}
AtlasPackingResult apr = new AtlasPackingResult();
apr.atlasX = maxw;
apr.atlasY = maxh;
Rect[] rss = new Rect[images.Count];
int[] srcImgIdx = new int[images.Count];
for (int j = 0; j < images.Count; j++)
{
Rect r = new Rect(images[j].x, images[j].y,
stretchImagesToEdges ? maxw : images[j].w,
images[j].h);
rss[j] = r;
srcImgIdx[j] = images[j].imgId;
}
apr.rects = rss;
apr.srcImgIdxs = srcImgIdx;
images.Clear();
rects.Clear();
extent = 0;
maxh = 0;
rs.Add(apr);
spaceRemaining = maxDimensionPassed;
}
else
{
im.x = 0;
im.y = extent;
images.Add(im);
rects.Add(new Rect(0, extent, im.w, im.h));
extent += im.h;
maxw = Mathf.Max(maxw, im.w);
maxh = extent;
spaceRemaining = maxDimensionPassed - extent;
}
}
for (int i = 0; i < rs.Count; i++)
{
int outH = rs[i].atlasY;
int outW = Mathf.Min(rs[i].atlasX, maxDimensionPassed);
if (atlasMustBePowerOfTwo)
{
outH = Mathf.Min(CeilToNearestPowerOfTwo(outH), maxDimensionPassed);
}
else
{
outH = Mathf.Min(outH, maxDimensionPassed);
}
rs[i].atlasY = outH;
//-------------------------------
//scale atlas to fit maxDimension
float padX, padY;
int newMinSizeX, newMinSizeY;
ScaleAtlasToFitMaxDim(new Vector2(rs[i].atlasX, rs[i].atlasY), images, maxDimensionPassed, padding, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY,
ref outW, ref outH, out padX, out padY, out newMinSizeX, out newMinSizeY);
}
//normalize atlases so that that rects are 0 to 1
for (int i = 0; i < rs.Count; i++)
{
normalizeRects(rs[i], padding, 0);
}
//-----------------------------
return(rs.ToArray());
}
public override IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Rect[] uvRects = packedAtlasRects.rects;
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY);
}
for (int propIdx = 0; propIdx < data.numAtlases; propIdx++)
{
Texture2D atlas = null;
ShaderTextureProperty property = data.texPropertyNames[propIdx];
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("=== Not creating atlas for " + property.name + " because textures are null and default value parameters are the same.");
}
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("=== Creating atlas for " + property.name);
}
GC.Collect();
CreateTemporaryTexturesForAtlas(data.distinctMaterialTextures, combiner, propIdx, data);
//use a jagged array because it is much more efficient in memory
Color[][] atlasPixels = new Color[atlasSizeY][];
for (int j = 0; j < atlasPixels.Length; j++)
{
atlasPixels[j] = new Color[atlasSizeX];
}
bool isNormalMap = false;
if (property.isNormalMap)
{
isNormalMap = true;
}
for (int texSetIdx = 0; texSetIdx < data.distinctMaterialTextures.Count; texSetIdx++)
{
MB_TexSet texSet = data.distinctMaterialTextures[texSetIdx];
MeshBakerMaterialTexture matTex = texSet.ts[propIdx];
string s = "Creating Atlas '" + property.name + "' texture " + matTex.GetTexName();
if (progressInfo != null)
{
progressInfo(s, .01f);
}
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log(string.Format("Adding texture {0} to atlas {1} for texSet {2} srcMat {3}", matTex.GetTexName(), property.name, texSetIdx, texSet.matsAndGOs.mats[0].GetMaterialName()));
}
Rect r = uvRects[texSetIdx];
Texture2D t = texSet.ts[propIdx].GetTexture2D();
int x = Mathf.RoundToInt(r.x * atlasSizeX);
int y = Mathf.RoundToInt(r.y * atlasSizeY);
int ww = Mathf.RoundToInt(r.width * atlasSizeX);
int hh = Mathf.RoundToInt(r.height * atlasSizeY);
if (ww == 0 || hh == 0)
{
Debug.LogError("Image in atlas has no height or width " + r);
}
if (progressInfo != null)
{
progressInfo(s + " set ReadWrite flag", .01f);
}
if (textureEditorMethods != null)
{
textureEditorMethods.SetReadWriteFlag(t, true, true);
}
if (progressInfo != null)
{
progressInfo(s + "Copying to atlas: '" + matTex.GetTexName() + "'", .02f);
}
DRect samplingRect = texSet.ts[propIdx].GetEncapsulatingSamplingRect();
Debug.Assert(!texSet.ts[propIdx].isNull, string.Format("Adding texture {0} to atlas {1} for texSet {2} srcMat {3}", matTex.GetTexName(), property.name, texSetIdx, texSet.matsAndGOs.mats[0].GetMaterialName()));
yield return(CopyScaledAndTiledToAtlas(texSet.ts[propIdx], texSet, property, samplingRect, x, y, ww, hh, packedAtlasRects.padding[texSetIdx], atlasPixels, isNormalMap, data, combiner, progressInfo, LOG_LEVEL));
}
yield return(data.numAtlases);
if (progressInfo != null)
{
progressInfo("Applying changes to atlas: '" + property.name + "'", .03f);
}
atlas = new Texture2D(atlasSizeX, atlasSizeY, TextureFormat.ARGB32, true);
for (int j = 0; j < atlasPixels.Length; j++)
{
atlas.SetPixels(0, j, atlasSizeX, 1, atlasPixels[j]);
}
atlas.Apply();
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Saving atlas " + property.name + " w=" + atlas.width + " h=" + atlas.height);
}
}
atlases[propIdx] = atlas;
if (progressInfo != null)
{
progressInfo("Saving atlas: '" + property.name + "'", .04f);
}
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
if (data.resultType == MB2_TextureBakeResults.ResultType.atlas)
{
SaveAtlasAndConfigureResultMaterial(data, textureEditorMethods, atlases[propIdx], data.texPropertyNames[propIdx], propIdx);
}
combiner._destroyTemporaryTextures(data.texPropertyNames[propIdx].name);
}
yield break;
}
/*
* Packed rects may exceed atlas size and require scaling
* When scaling want pixel perfect fit in atlas. Corners of rects should exactly align with pixel grid
* Padding should be subtracted from pixel perfect rect to create pixel perfect square
*/
AtlasPackingResult ScaleAtlasToFitMaxDim(ProbeResult root, List <Vector2> imgWidthHeights, List <Image> images, int maxDimension, int padding, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY, int outW, int outH, int recursionDepth)
{
int newMinSizeX = minImageSizeX;
int newMinSizeY = minImageSizeY;
bool redoPacking = false;
//AtlasPackingResult[] rs = null;
// the atlas may be packed larger than the maxDimension. If so then the atlas needs to be scaled down to fit
float padX = (float)padding / (float)outW; //padding needs to be pixel perfect in size
if (root.w > maxDimension)
{
padX = (float)padding / (float)maxDimension;
float scaleFactor = (float)maxDimension / (float)root.w;
if (LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogWarning("Packing exceeded atlas width shrinking to " + scaleFactor);
}
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
if (im.w * scaleFactor < masterImageSizeX)
{ //check if small images will be rounded too small. If so need to redo packing forcing a larger min size
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Small images are being scaled to zero. Will need to redo packing with larger minTexSizeX.");
}
redoPacking = true;
newMinSizeX = Mathf.CeilToInt(minImageSizeX / scaleFactor);
}
int right = (int)((im.x + im.w) * scaleFactor);
im.x = (int)(scaleFactor * im.x);
im.w = right - im.x;
}
outW = maxDimension;
}
float padY = (float)padding / (float)outH;
if (root.h > maxDimension)
{
//float minSizeY = ((float)minImageSizeY + 1) / maxDimension;
padY = (float)padding / (float)maxDimension;
float scaleFactor = (float)maxDimension / (float)root.h;
if (LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogWarning("Packing exceeded atlas height shrinking to " + scaleFactor);
}
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
if (im.h * scaleFactor < masterImageSizeY)
{ //check if small images will be rounded too small. If so need to redo packing forcing a larger min size
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Small images are being scaled to zero. Will need to redo packing with larger minTexSizeY.");
}
redoPacking = true;
newMinSizeY = Mathf.CeilToInt(minImageSizeY / scaleFactor);
}
int bottom = (int)((im.y + im.h) * scaleFactor);
im.y = (int)(scaleFactor * im.y);
im.h = bottom - im.y;
}
outH = maxDimension;
}
AtlasPackingResult res;
if (!redoPacking)
{
res = new AtlasPackingResult();
res.rects = new Rect[images.Count];
res.srcImgIdxs = new int[images.Count];
res.atlasX = outW;
res.atlasY = outH;
res.usedW = -1;
res.usedH = -1;
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
Rect r = res.rects[i] = new Rect((float)im.x / (float)outW + padX,
(float)im.y / (float)outH + padY,
(float)im.w / (float)outW - padX * 2f,
(float)im.h / (float)outH - padY * 2f);
res.srcImgIdxs[i] = im.imgId;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Image: " + i + " imgID=" + im.imgId + " x=" + r.x * outW +
" y=" + r.y * outH + " w=" + r.width * outW +
" h=" + r.height * outH + " padding=" + padding);
}
}
return(res);
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("==================== REDOING PACKING ================");
}
root = null;
return(_GetRectsSingleAtlas(imgWidthHeights, maxDimension, padding, newMinSizeX, newMinSizeY, masterImageSizeX, masterImageSizeY, recursionDepth + 1));
}
}
//------------------ Algorithm for fitting everything into one atlas and scaling down
//
// for images being added calc area, maxW, maxH. A perfectly packed atlas will match area exactly. atlas must be at least maxH and maxW in size.
// Sort images from big to small using either height, width or area comparer
// Explore space to find a resonably efficient packing. Grow the atlas gradually until a fit is found
// Scale atlas to fit
//
AtlasPackingResult _GetRectsSingleAtlas(List <Vector2> imgWidthHeights, int maxDimension, int padding, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY, int recursionDepth)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(String.Format("_GetRects numImages={0}, maxDimension={1}, padding={2}, minImageSizeX={3}, minImageSizeY={4}, masterImageSizeX={5}, masterImageSizeY={6}, recursionDepth={7}",
imgWidthHeights.Count, maxDimension, padding, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY, recursionDepth));
}
if (recursionDepth > 10)
{
if (LOG_LEVEL >= MB2_LogLevel.error)
{
Debug.LogError("Maximum recursion depth reached. Couldn't find packing for these textures.");
}
return(null);
}
float area = 0;
int maxW = 0;
int maxH = 0;
Image[] imgsToAdd = new Image[imgWidthHeights.Count];
for (int i = 0; i < imgsToAdd.Length; i++)
{
int iw = (int)imgWidthHeights[i].x;
int ih = (int)imgWidthHeights[i].y;
Image im = imgsToAdd[i] = new Image(i, iw, ih, padding, minImageSizeX, minImageSizeY);
area += im.w * im.h;
maxW = Mathf.Max(maxW, im.w);
maxH = Mathf.Max(maxH, im.h);
}
if ((float)maxH / (float)maxW > 2)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Using height Comparer");
}
Array.Sort(imgsToAdd, new ImageHeightComparer());
}
else if ((float)maxH / (float)maxW < .5)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Using width Comparer");
}
Array.Sort(imgsToAdd, new ImageWidthComparer());
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Using area Comparer");
}
Array.Sort(imgsToAdd, new ImageAreaComparer());
}
//explore the space to find a resonably efficient packing
int sqrtArea = (int)Mathf.Sqrt(area);
int idealAtlasW;
int idealAtlasH;
if (doPowerOfTwoTextures)
{
idealAtlasW = idealAtlasH = RoundToNearestPositivePowerOfTwo(sqrtArea);
if (maxW > idealAtlasW)
{
idealAtlasW = CeilToNearestPowerOfTwo(idealAtlasW);
}
if (maxH > idealAtlasH)
{
idealAtlasH = CeilToNearestPowerOfTwo(idealAtlasH);
}
}
else
{
idealAtlasW = sqrtArea;
idealAtlasH = sqrtArea;
if (maxW > sqrtArea)
{
idealAtlasW = maxW;
idealAtlasH = Mathf.Max(Mathf.CeilToInt(area / maxW), maxH);
}
if (maxH > sqrtArea)
{
idealAtlasW = Mathf.Max(Mathf.CeilToInt(area / maxH), maxW);
idealAtlasH = maxH;
}
}
if (idealAtlasW == 0)
{
idealAtlasW = 4;
}
if (idealAtlasH == 0)
{
idealAtlasH = 4;
}
int stepW = (int)(idealAtlasW * .15f);
int stepH = (int)(idealAtlasH * .15f);
if (stepW == 0)
{
stepW = 1;
}
if (stepH == 0)
{
stepH = 1;
}
int numWIterations = 2;
int steppedWidth = idealAtlasW;
int steppedHeight = idealAtlasH;
while (numWIterations >= 1 && steppedHeight < sqrtArea * 1000)
{
bool successW = false;
numWIterations = 0;
steppedWidth = idealAtlasW;
while (!successW && steppedWidth < sqrtArea * 1000)
{
ProbeResult pr = new ProbeResult();
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log("Probing h=" + steppedHeight + " w=" + steppedWidth);
}
if (ProbeSingleAtlas(imgsToAdd, steppedWidth, steppedHeight, area, maxDimension, pr))
{
successW = true;
if (bestRoot == null)
{
bestRoot = pr;
}
else if (pr.GetScore(doPowerOfTwoTextures) > bestRoot.GetScore(doPowerOfTwoTextures))
{
bestRoot = pr;
}
}
else
{
numWIterations++;
steppedWidth = StepWidthHeight(steppedWidth, stepW, maxDimension);
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
MB2_Log.LogDebug("increasing Width h=" + steppedHeight + " w=" + steppedWidth);
}
}
}
steppedHeight = StepWidthHeight(steppedHeight, stepH, maxDimension);
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("increasing Height h=" + steppedHeight + " w=" + steppedWidth);
}
}
if (bestRoot == null)
{
return(null);
}
int outW = 0;
int outH = 0;
if (doPowerOfTwoTextures)
{
outW = Mathf.Min(CeilToNearestPowerOfTwo(bestRoot.w), maxDimension);
outH = Mathf.Min(CeilToNearestPowerOfTwo(bestRoot.h), maxDimension);
if (outH < outW / 2)
{
outH = outW / 2; //smaller dim can't be less than half larger
}
if (outW < outH / 2)
{
outW = outH / 2;
}
}
else
{
outW = Mathf.Min(bestRoot.w, maxDimension);
outH = Mathf.Min(bestRoot.h, maxDimension);
}
bestRoot.outW = outW;
bestRoot.outH = outH;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Best fit found: atlasW=" + outW + " atlasH" + outH + " w=" + bestRoot.w + " h=" + bestRoot.h + " efficiency=" + bestRoot.efficiency + " squareness=" + bestRoot.squareness + " fits in max dimension=" + bestRoot.largerOrEqualToMaxDim);
}
//Debug.Assert(images.Count != imgsToAdd.Length, "Result images not the same lentgh as source"));
//the atlas can be larger than the max dimension scale it if this is the case
//int newMinSizeX = minImageSizeX;
//int newMinSizeY = minImageSizeY;
List <Image> images = new List <Image>();
flattenTree(bestRoot.root, images);
images.Sort(new ImgIDComparer());
// the atlas may be packed larger than the maxDimension. If so then the atlas needs to be scaled down to fit
AtlasPackingResult res = ScaleAtlasToFitMaxDim(bestRoot, imgWidthHeights, images, maxDimension, padding, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY, outW, outH, recursionDepth);
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug(String.Format("Done GetRects atlasW={0} atlasH={1}", bestRoot.w, bestRoot.h));
}
return(res);
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
MB3_TextureCombinerPipeline.TexturePipelineData data, MB3_TextureCombiner combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods,
MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(!data.OnlyOneTextureInAtlasReuseTextures());
Rect[] uvRects = packedAtlasRects.rects;
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY);
}
//create a game object
GameObject renderAtlasesGO = null;
try
{
renderAtlasesGO = new GameObject("MBrenderAtlasesGO");
MB3_AtlasPackerRenderTexture atlasRenderTexture = renderAtlasesGO.AddComponent <MB3_AtlasPackerRenderTexture>();
renderAtlasesGO.AddComponent <Camera>();
if (data._considerNonTextureProperties && LOG_LEVEL >= MB2_LogLevel.warn)
{
Debug.LogError("Blend Non-Texture Properties has limited functionality when used with Mesh Baker Texture Packer Fast. If no texture is pesent, then a small texture matching the non-texture property will be created and used in the atlas. But non-texture properties will not be blended into texture.");
}
for (int propIdx = 0; propIdx < data.numAtlases; propIdx++)
{
Texture2D atlas = null;
if (!MB3_TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Not creating atlas for " + data.texPropertyNames[propIdx].name + " because textures are null and default value parameters are the same.");
}
}
else
{
GC.Collect();
MB3_TextureCombinerPackerRoot.CreateTemporaryTexturesForAtlas(data.distinctMaterialTextures, combiner, propIdx, data);
if (progressInfo != null)
{
progressInfo("Creating Atlas '" + data.texPropertyNames[propIdx].name + "'", .01f);
}
// ===========
// configure it
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("About to render " + data.texPropertyNames[propIdx].name + " isNormal=" + data.texPropertyNames[propIdx].isNormalMap);
}
atlasRenderTexture.LOG_LEVEL = LOG_LEVEL;
atlasRenderTexture.width = atlasSizeX;
atlasRenderTexture.height = atlasSizeY;
atlasRenderTexture.padding = data._atlasPadding;
atlasRenderTexture.rects = uvRects;
atlasRenderTexture.textureSets = data.distinctMaterialTextures;
atlasRenderTexture.indexOfTexSetToRender = propIdx;
atlasRenderTexture.texPropertyName = data.texPropertyNames[propIdx];
atlasRenderTexture.isNormalMap = data.texPropertyNames[propIdx].isNormalMap;
atlasRenderTexture.fixOutOfBoundsUVs = data._fixOutOfBoundsUVs;
atlasRenderTexture.considerNonTextureProperties = data._considerNonTextureProperties;
atlasRenderTexture.resultMaterialTextureBlender = data.nonTexturePropertyBlender;
// call render on it
atlas = atlasRenderTexture.OnRenderAtlas(combiner);
// destroy it
// =============
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Saving atlas " + data.texPropertyNames[propIdx].name + " w=" + atlas.width + " h=" + atlas.height + " id=" + atlas.GetInstanceID());
}
}
atlases[propIdx] = atlas;
if (progressInfo != null)
{
progressInfo("Saving atlas: '" + data.texPropertyNames[propIdx].name + "'", .04f);
}
if (data.resultType == MB2_TextureBakeResults.ResultType.atlas)
{
MB3_TextureCombinerPackerRoot.SaveAtlasAndConfigureResultMaterial(data, textureEditorMethods, atlases[propIdx], data.texPropertyNames[propIdx], propIdx);
}
combiner._destroyTemporaryTextures(data.texPropertyNames[propIdx].name); // need to save atlases before doing this
}
}
catch (Exception ex)
{
//Debug.LogError(ex);
Debug.LogError(ex.Message + "\n" + ex.StackTrace.ToString());
}
finally
{
if (renderAtlasesGO != null)
{
MB_Utility.Destroy(renderAtlasesGO);
}
}
yield break;
}
public static AtlasPackingResult TestStackRectanglesVertical(AtlasPackingResult a,
AtlasPackingResult b, int maxHeightDim, int maxWidthDim, bool stretchBToAtlasWidth)
{
return(MergeAtlasPackingResultStackBonA(a, b, maxWidthDim, maxHeightDim, stretchBToAtlasWidth, new VerticalPipeline()));
}
AtlasPackingResult _GetRectsSingleAtlas(List <Vector2> imgWidthHeights, int maxDimension, int padding, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY, int recursionDepth)
{
AtlasPackingResult res = new AtlasPackingResult();
List <Rect> rects = new List <Rect>();
int extent = 0;
int maxh = 0;
int maxw = 0;
List <Image> images = new List <Image>();
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Packing rects for: " + imgWidthHeights.Count);
}
for (int i = 0; i < imgWidthHeights.Count; i++)
{
Image im = new Image(i, (int)imgWidthHeights[i].x, (int)imgWidthHeights[i].y, padding, minImageSizeX, minImageSizeY);
// if images are stacked horizontally then there is no padding at the top or bottom
if (packingOrientation == TexturePackingOrientation.vertical)
{
im.h -= padding * 2;
im.x = extent;
im.y = 0;
rects.Add(new Rect(im.w, im.h, extent, 0));
extent += im.w;
maxh = Mathf.Max(maxh, im.h);
}
else
{
im.w -= padding * 2;
im.y = extent;
im.x = 0;
rects.Add(new Rect(im.w, im.h, 0, extent));
extent += im.h;
maxw = Mathf.Max(maxw, im.w);
}
images.Add(im);
}
//scale atlas to fit maxDimension
Vector2 rootWH;
if (packingOrientation == TexturePackingOrientation.vertical)
{
rootWH = new Vector2(extent, maxh);
}
else
{
rootWH = new Vector2(maxw, extent);
}
int outW = (int)rootWH.x;
int outH = (int)rootWH.y;
if (packingOrientation == TexturePackingOrientation.vertical)
{
if (atlasMustBePowerOfTwo)
{
outW = Mathf.Min(CeilToNearestPowerOfTwo(outW), maxDimension);
}
else
{
outW = Mathf.Min(outW, maxDimension);
}
}
else
{
if (atlasMustBePowerOfTwo)
{
outH = Mathf.Min(CeilToNearestPowerOfTwo(outH), maxDimension);
}
else
{
outH = Mathf.Min(outH, maxDimension);
}
}
float padX, padY;
int newMinSizeX, newMinSizeY;
if (!ScaleAtlasToFitMaxDim(rootWH, images, maxDimension, padding, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY,
ref outW, ref outH, out padX, out padY, out newMinSizeX, out newMinSizeY))
{
res = new AtlasPackingResult();
res.rects = new Rect[images.Count];
res.srcImgIdxs = new int[images.Count];
res.atlasX = outW;
res.atlasY = outH;
res.usedW = -1;
res.usedH = -1;
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
Rect r;
if (packingOrientation == TexturePackingOrientation.vertical)
{
r = res.rects[i] = new Rect((float)im.x / (float)outW + padX,
(float)im.y / (float)outH,
(float)im.w / (float)outW - padX * 2f,
stretchImagesToEdges ? 1f : (float)im.h / (float)outH); // all images are stretched to fill the height
}
else
{
r = res.rects[i] = new Rect((float)im.x / (float)outW,
(float)im.y / (float)outH + padY,
(stretchImagesToEdges ? 1f : ((float)im.w / (float)outW)),
(float)im.h / (float)outH - padY * 2f); // all images are stretched to fill the height
}
res.srcImgIdxs[i] = im.imgId;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Image: " + i + " imgID=" + im.imgId + " x=" + r.x * outW +
" y=" + r.y * outH + " w=" + r.width * outW +
" h=" + r.height * outH + " padding=" + padding + " outW=" + outW + " outH=" + outH);
}
}
return(res);
}
Debug.Log("Packing failed returning null atlas result");
return(null);
}
//------------------ Algorithm for fitting everything into one atlas and scaling down
//
// for images being added calc area, maxW, maxH. A perfectly packed atlas will match area exactly. atlas must be at least maxH and maxW in size.
// Sort images from big to small using either height, width or area comparer
// Explore space to find a resonably efficient packing. Grow the atlas gradually until a fit is found
// Scale atlas to fit
//
AtlasPackingResult _GetRectsSingleAtlas(List <Vector2> imgWidthHeights, List <AtlasPadding> paddings, int maxDimensionX, int maxDimensionY, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY, int recursionDepth)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(String.Format("_GetRects numImages={0}, maxDimension={1}, minImageSizeX={2}, minImageSizeY={3}, masterImageSizeX={4}, masterImageSizeY={5}, recursionDepth={6}",
imgWidthHeights.Count, maxDimensionX, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY, recursionDepth));
}
if (recursionDepth > MAX_RECURSION_DEPTH)
{
if (LOG_LEVEL >= MB2_LogLevel.error)
{
Debug.LogError("Maximum recursion depth reached. The baked atlas is likely not very good. " +
" This happens when the packed atlases exceeds the maximum" +
" atlas size in one or both dimensions so that the atlas needs to be downscaled AND there are some very thin or very small images (only-a-few-pixels)." +
" these very thin images can 'vanish' completely when the atlas is downscaled.\n\n" +
" Try one or more of the following: using multiple atlases, increase the maximum atlas size, don't use 'force-power-of-two', remove the source materials that are are using very small/thin textures.");
}
//return null;
}
float area = 0;
int maxW = 0;
int maxH = 0;
Image[] imgsToAdd = new Image[imgWidthHeights.Count];
for (int i = 0; i < imgsToAdd.Length; i++)
{
int iw = (int)imgWidthHeights[i].x;
int ih = (int)imgWidthHeights[i].y;
Image im = imgsToAdd[i] = new Image(i, iw, ih, paddings[i], minImageSizeX, minImageSizeY);
area += im.w * im.h;
maxW = Mathf.Max(maxW, im.w);
maxH = Mathf.Max(maxH, im.h);
}
if ((float)maxH / (float)maxW > 2)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Using height Comparer");
}
Array.Sort(imgsToAdd, new ImageHeightComparer());
}
else if ((float)maxH / (float)maxW < .5)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Using width Comparer");
}
Array.Sort(imgsToAdd, new ImageWidthComparer());
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Using area Comparer");
}
Array.Sort(imgsToAdd, new ImageAreaComparer());
}
//explore the space to find a resonably efficient packing
int sqrtArea = (int)Mathf.Sqrt(area);
int idealAtlasW;
int idealAtlasH;
if (atlasMustBePowerOfTwo)
{
idealAtlasW = idealAtlasH = RoundToNearestPositivePowerOfTwo(sqrtArea);
if (maxW > idealAtlasW)
{
idealAtlasW = CeilToNearestPowerOfTwo(idealAtlasW);
}
if (maxH > idealAtlasH)
{
idealAtlasH = CeilToNearestPowerOfTwo(idealAtlasH);
}
}
else
{
idealAtlasW = sqrtArea;
idealAtlasH = sqrtArea;
if (maxW > sqrtArea)
{
idealAtlasW = maxW;
idealAtlasH = Mathf.Max(Mathf.CeilToInt(area / maxW), maxH);
}
if (maxH > sqrtArea)
{
idealAtlasW = Mathf.Max(Mathf.CeilToInt(area / maxH), maxW);
idealAtlasH = maxH;
}
}
if (idealAtlasW == 0)
{
idealAtlasW = 4;
}
if (idealAtlasH == 0)
{
idealAtlasH = 4;
}
int stepW = (int)(idealAtlasW * .15f);
int stepH = (int)(idealAtlasH * .15f);
if (stepW == 0)
{
stepW = 1;
}
if (stepH == 0)
{
stepH = 1;
}
int numWIterations = 2;
int steppedWidth = idealAtlasW;
int steppedHeight = idealAtlasH;
while (numWIterations >= 1 && steppedHeight < sqrtArea * 1000)
{
bool successW = false;
numWIterations = 0;
steppedWidth = idealAtlasW;
while (!successW && steppedWidth < sqrtArea * 1000)
{
ProbeResult pr = new ProbeResult();
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log("Probing h=" + steppedHeight + " w=" + steppedWidth);
}
if (ProbeSingleAtlas(imgsToAdd, steppedWidth, steppedHeight, area, maxDimensionX, maxDimensionY, pr))
{
successW = true;
if (bestRoot == null)
{
bestRoot = pr;
}
else if (pr.GetScore(atlasMustBePowerOfTwo) > bestRoot.GetScore(atlasMustBePowerOfTwo))
{
bestRoot = pr;
}
}
else
{
numWIterations++;
steppedWidth = StepWidthHeight(steppedWidth, stepW, maxDimensionX);
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
MB2_Log.LogDebug("increasing Width h=" + steppedHeight + " w=" + steppedWidth);
}
}
}
steppedHeight = StepWidthHeight(steppedHeight, stepH, maxDimensionY);
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("increasing Height h=" + steppedHeight + " w=" + steppedWidth);
}
}
if (bestRoot == null)
{
return(null);
}
int outW = 0;
int outH = 0;
if (atlasMustBePowerOfTwo)
{
outW = Mathf.Min(CeilToNearestPowerOfTwo(bestRoot.w), maxDimensionX);
outH = Mathf.Min(CeilToNearestPowerOfTwo(bestRoot.h), maxDimensionY);
if (outH < outW / 2)
{
outH = outW / 2; //smaller dim can't be less than half larger
}
if (outW < outH / 2)
{
outW = outH / 2;
}
}
else
{
outW = Mathf.Min(bestRoot.w, maxDimensionX);
outH = Mathf.Min(bestRoot.h, maxDimensionY);
}
bestRoot.outW = outW;
bestRoot.outH = outH;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Best fit found: atlasW=" + outW + " atlasH" + outH + " w=" + bestRoot.w + " h=" + bestRoot.h + " efficiency=" + bestRoot.efficiency + " squareness=" + bestRoot.squareness + " fits in max dimension=" + bestRoot.largerOrEqualToMaxDim);
}
//Debug.Assert(images.Count != imgsToAdd.Length, "Result images not the same lentgh as source"));
//the atlas can be larger than the max dimension scale it if this is the case
//int newMinSizeX = minImageSizeX;
//int newMinSizeY = minImageSizeY;
List <Image> images = new List <Image>();
flattenTree(bestRoot.root, images);
images.Sort(new ImgIDComparer());
// the atlas may be packed larger than the maxDimension. If so then the atlas needs to be scaled down to fit
Vector2 rootWH = new Vector2(bestRoot.w, bestRoot.h);
float padX, padY;
int newMinSizeX, newMinSizeY;
if (!ScaleAtlasToFitMaxDim(rootWH, images, maxDimensionX, maxDimensionY, paddings[0], minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY,
ref outW, ref outH, out padX, out padY, out newMinSizeX, out newMinSizeY) ||
recursionDepth > MAX_RECURSION_DEPTH)
{
AtlasPackingResult res = new AtlasPackingResult(paddings.ToArray());
res.rects = new Rect[images.Count];
res.srcImgIdxs = new int[images.Count];
res.atlasX = outW;
res.atlasY = outH;
res.usedW = -1;
res.usedH = -1;
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
Rect r = res.rects[i] = new Rect((float)im.x / (float)outW + padX,
(float)im.y / (float)outH + padY,
(float)im.w / (float)outW - padX * 2f,
(float)im.h / (float)outH - padY * 2f);
res.srcImgIdxs[i] = im.imgId;
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
MB2_Log.LogDebug("Image: " + i + " imgID=" + im.imgId + " x=" + r.x * outW +
" y=" + r.y * outH + " w=" + r.width * outW +
" h=" + r.height * outH + " padding=" + (paddings[i].leftRight * 2) + "x" + (paddings[i].topBottom * 2));
}
}
res.CalcUsedWidthAndHeight();
return(res);
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("==================== REDOING PACKING ================");
}
//root = null;
return(_GetRectsSingleAtlas(imgWidthHeights, paddings, maxDimensionX, maxDimensionY, newMinSizeX, newMinSizeY, masterImageSizeX, masterImageSizeY, recursionDepth + 1));
}
//if (LOG_LEVEL >= MB2_LogLevel.debug) MB2_Log.LogDebug(String.Format("Done GetRects atlasW={0} atlasH={1}", bestRoot.w, bestRoot.h));
//return res;
}
public override AtlasPackingResult[] CalculateAtlasRectangles(MB3_TextureCombinerPipeline.TexturePipelineData data, bool doMultiAtlas, MB2_LogLevel LOG_LEVEL)
{
Debug.Assert(!data.OnlyOneTextureInAtlasReuseTextures());
Debug.Assert(data._packingAlgorithm != MB2_PackingAlgorithmEnum.UnitysPackTextures, "Unity texture packer cannot be used");
IPipeline pipeline;
if (_atlasDirection == AtlasDirection.horizontal)
{
pipeline = new HorizontalPipeline();
}
else
{
pipeline = new VerticalPipeline();
}
//int maxAtlasWidth = data._maxAtlasWidth;
//int maxAtlasHeight = data._maxAtlasHeight;
if (_atlasDirection == AtlasDirection.horizontal)
{
if (!data._useMaxAtlasWidthOverride)
{
// need to get the width of the atlas without mesh uvs considered
int maxWidth = 2;
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
MB_TexSet ts = data.distinctMaterialTextures[i];
int w;
if (data._fixOutOfBoundsUVs)
{
Vector2 rawHeightWidth = ts.GetMaxRawTextureHeightWidth();
w = (int)rawHeightWidth.x;
}
else
{
w = ts.idealWidth;
}
if (ts.idealWidth > maxWidth)
{
maxWidth = w;
}
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Calculated max atlas width: " + maxWidth);
}
data._maxAtlasWidth = maxWidth;
}
}
else
{
if (!data._useMaxAtlasHeightOverride)
{
int maxHeight = 2;
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
MB_TexSet ts = data.distinctMaterialTextures[i];
int h;
if (data._fixOutOfBoundsUVs)
{
Vector2 rawHeightWidth = ts.GetMaxRawTextureHeightWidth();
h = (int)rawHeightWidth.y;
}
else
{
h = ts.idealHeight;
}
if (ts.idealHeight > maxHeight)
{
maxHeight = h;
}
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("Calculated max atlas height: " + maxHeight);
}
data._maxAtlasHeight = maxHeight;
}
}
//split the list of distinctMaterialTextures into two bins
List <MB_TexSet> horizontalVerticalDistinctMaterialTextures = new List <MB_TexSet>();
List <MB_TexSet> regularTextures = new List <MB_TexSet>();
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
pipeline.SortTexSetIntoBins(data.distinctMaterialTextures[i], horizontalVerticalDistinctMaterialTextures, regularTextures, data._maxAtlasWidth, data._maxAtlasHeight);
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(String.Format("Splitting list of distinctMaterialTextures numHorizontalVertical={0} numRegular={1} maxAtlasWidth={2} maxAtlasHeight={3}", horizontalVerticalDistinctMaterialTextures.Count, regularTextures.Count, data._maxAtlasWidth, data._maxAtlasHeight));
}
//pack one bin with the horizontal vertical texture packer.
MB2_TexturePacker tp;
MB2_PackingAlgorithmEnum packingAlgorithm;
AtlasPackingResult[] packerRectsHorizontalVertical;
if (horizontalVerticalDistinctMaterialTextures.Count > 0)
{
packingAlgorithm = pipeline.GetPackingAlg();
List <Vector2> imageSizesHorizontalVertical = new List <Vector2>();
for (int i = 0; i < horizontalVerticalDistinctMaterialTextures.Count; i++)
{
horizontalVerticalDistinctMaterialTextures[i].SetTilingTreatmentAndAdjustEncapsulatingSamplingRect(pipeline.GetEdge2EdgeTreatment());
imageSizesHorizontalVertical.Add(new Vector2(horizontalVerticalDistinctMaterialTextures[i].idealWidth, horizontalVerticalDistinctMaterialTextures[i].idealHeight));
}
tp = MB3_TextureCombinerPipeline.CreateTexturePacker(packingAlgorithm);
tp.atlasMustBePowerOfTwo = false;
List <AtlasPadding> paddingsHorizontalVertical = new List <AtlasPadding>();
for (int i = 0; i < imageSizesHorizontalVertical.Count; i++)
{
AtlasPadding padding = new AtlasPadding();
pipeline.InitializeAtlasPadding(ref padding, data._atlasPadding);
paddingsHorizontalVertical.Add(padding);
}
tp.LOG_LEVEL = MB2_LogLevel.trace;
packerRectsHorizontalVertical = tp.GetRects(imageSizesHorizontalVertical, paddingsHorizontalVertical, data._maxAtlasWidth, data._maxAtlasHeight, false);
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
Debug.Log(String.Format("Packed {0} textures with edgeToEdge tiling into an atlas of size {1} by {2} usedW {3} usedH {4}", horizontalVerticalDistinctMaterialTextures.Count, packerRectsHorizontalVertical[0].atlasX, packerRectsHorizontalVertical[0].atlasY, packerRectsHorizontalVertical[0].usedW, packerRectsHorizontalVertical[0].usedH));
}
}
else
{
packerRectsHorizontalVertical = new AtlasPackingResult[0];
}
//pack other bin with regular texture packer
AtlasPackingResult[] packerRectsRegular;
if (regularTextures.Count > 0)
{
packingAlgorithm = MB2_PackingAlgorithmEnum.MeshBakerTexturePacker;
List <Vector2> imageSizesRegular = new List <Vector2>();
for (int i = 0; i < regularTextures.Count; i++)
{
imageSizesRegular.Add(new Vector2(regularTextures[i].idealWidth, regularTextures[i].idealHeight));
}
tp = MB3_TextureCombinerPipeline.CreateTexturePacker(MB2_PackingAlgorithmEnum.MeshBakerTexturePacker);
tp.atlasMustBePowerOfTwo = false;
List <AtlasPadding> paddingsRegular = new List <AtlasPadding>();
for (int i = 0; i < imageSizesRegular.Count; i++)
{
AtlasPadding padding = new AtlasPadding();
padding.topBottom = data._atlasPadding;
padding.leftRight = data._atlasPadding;
paddingsRegular.Add(padding);
}
int atlasRegularMaxWidth, atlasRegularMaxHeight;
int usedHorizontalVertWidth = 0, usedHorizontalVertHeight = 0;
if (packerRectsHorizontalVertical.Length > 0)
{
usedHorizontalVertHeight = packerRectsHorizontalVertical[0].atlasY;
usedHorizontalVertWidth = packerRectsHorizontalVertical[0].atlasX;
}
pipeline.GetExtraRoomForRegularAtlas(usedHorizontalVertWidth, usedHorizontalVertHeight, data._maxAtlasWidth, data._maxAtlasHeight, out atlasRegularMaxWidth, out atlasRegularMaxHeight);
packerRectsRegular = tp.GetRects(imageSizesRegular, paddingsRegular, atlasRegularMaxWidth, atlasRegularMaxHeight, false);
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(String.Format("Packed {0} textures without edgeToEdge tiling into an atlas of size {1} by {2} usedW {3} usedH {4}", regularTextures.Count, packerRectsRegular[0].atlasX, packerRectsRegular[0].atlasY, packerRectsRegular[0].usedW, packerRectsRegular[0].usedH));
}
}
else
{
packerRectsRegular = new AtlasPackingResult[0];
}
AtlasPackingResult result = null;
if (packerRectsHorizontalVertical.Length == 0 && packerRectsRegular.Length == 0)
{
Debug.Assert(false, "Should never have reached this.");
return(null);
}
else if (packerRectsHorizontalVertical.Length > 0 && packerRectsRegular.Length > 0)
{
result = MergeAtlasPackingResultStackBonA(packerRectsHorizontalVertical[0], packerRectsRegular[0], data._maxAtlasWidth, data._maxAtlasHeight, true, pipeline);
}
else if (packerRectsHorizontalVertical.Length > 0)
{
result = packerRectsHorizontalVertical[0];
}
else if (packerRectsRegular.Length > 0)
{
result = packerRectsRegular[0];
}
Debug.Assert(data.distinctMaterialTextures.Count == result.rects.Length);
//We re-ordered the distinctMaterial textures so replace the list with the new reordered one
horizontalVerticalDistinctMaterialTextures.AddRange(regularTextures);
data.distinctMaterialTextures = horizontalVerticalDistinctMaterialTextures;
AtlasPackingResult[] results;
if (result != null)
{
results = new AtlasPackingResult[] { result }
}
;
else
{
results = new AtlasPackingResult[0];
}
return(results);
}
