public AtlasPackingResult[] CalculateAtlasRectangles(TexturePipelineData data, bool doMultiAtlas)
{
Debug.Assert(data.IsOnlyOneTextureInAtlasReuseTextures());
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);
MaterialPropTexture 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);
}
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 });
}
}
}
//normalize atlases so that that rects are 0 to 1
public void normalizeRects(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;
}
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
TexturePipelineData data,
TextureCombineHandler combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases,
EditorMethodsInterface textureEditorMethods)
{
Debug.Assert(data.IsOnlyOneTextureInAtlasReuseTextures());
Debug.Log("Only one image per atlas. Will re-use original texture");
for (int i = 0; i < data.numAtlases; i++)
{
MaterialPropTexture 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, Vector2.one);
data.resultMaterial.SetTextureOffset(data.texPropertyNames[i].name, Vector2.zero);
}
yield break;
}
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,
TexturePipelineData data,
TextureCombineHandler combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases,
EditorMethodsInterface textureEditorMethods)
{
Debug.Assert(!data.IsOnlyOneTextureInAtlasReuseTextures());
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 (!TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
}
else
{
Debug.LogWarning("Beginning loop " + propIdx + " num temporary textures " + combiner._getNumTemporaryTextures());
TextureCombinerPackerBase.CreateTemporaryTexturesForAtlas(data.distinctMaterialTextures, combiner, propIdx, data);
Texture2D[] texToPack = new Texture2D[data.distinctMaterialTextures.Count];
for (int texSetIdx = 0; texSetIdx < data.distinctMaterialTextures.Count; texSetIdx++)
{
MaterialPropTexturesSet 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);
//create a resized copy if necessary
if (tx.width != tWidth || tx.height != tHeight)
{
if (progressInfo != null)
{
progressInfo("Resizing texture '" + tx + "'", .01f);
}
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)
{
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);
}
Debug.Log("Estimated atlas minimum size:" + Math.Sqrt(estArea).ToString("F0"));
int maxAtlasSize = 4096;
uvRects = atlas.PackTextures(texToPack, data._atlasPadding, maxAtlasSize, false);
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 abstract IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
TexturePipelineData data,
TextureCombineHandler combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases,
EditorMethodsInterface textureEditorMethods);
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 static AtlasPackingResult TestStackRectanglesVertical(AtlasPackingResult a,
AtlasPackingResult b, int maxHeightDim, int maxWidthDim, bool stretchBToAtlasWidth)
{
return(MergeAtlasPackingResultStackBonA(a, b, maxWidthDim, maxHeightDim, stretchBToAtlasWidth, new VerticalPipeline()));
}
public override AtlasPackingResult[] CalculateAtlasRectangles(TexturePipelineData data, bool doMultiAtlas)
{
Debug.Assert(!data.IsOnlyOneTextureInAtlasReuseTextures());
Debug.Assert(data._packingAlgorithm != 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++)
{
MaterialPropTexturesSet 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;
}
}
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++)
{
MaterialPropTexturesSet 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;
}
}
Debug.Log("Calculated max atlas height: " + maxHeight);
data._maxAtlasHeight = maxHeight;
}
}
//split the list of distinctMaterialTextures into two bins
List <MaterialPropTexturesSet> horizontalVerticalDistinctMaterialTextures = new List <MaterialPropTexturesSet>();
List <MaterialPropTexturesSet> regularTextures = new List <MaterialPropTexturesSet>();
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
pipeline.SortTexSetIntoBins(data.distinctMaterialTextures[i], horizontalVerticalDistinctMaterialTextures, regularTextures, data._maxAtlasWidth, data._maxAtlasHeight);
}
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.
TexturePacker tp;
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 = 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);
}
packerRectsHorizontalVertical = tp.GetRects(imageSizesHorizontalVertical, paddingsHorizontalVertical, data._maxAtlasWidth, data._maxAtlasHeight, false);
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 = 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 = CreateTexturePacker(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);
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);
}
AtlasPackingResult _GetRectsSingleAtlas(List <Vector2> imgWidthHeights, List <AtlasPadding> paddings, int maxDimensionX, int maxDimensionY, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY, int recursionDepth)
{
AtlasPackingResult res = new AtlasPackingResult(paddings.ToArray());
List <Rect> rects = new List <Rect>();
int extent = 0;
int maxh = 0;
int maxw = 0;
List <ImageAreaInAtlas> images = new List <ImageAreaInAtlas>();
Debug.Log("Packing rects for: " + imgWidthHeights.Count);
for (int i = 0; i < imgWidthHeights.Count; i++)
{
ImageAreaInAtlas im = new ImageAreaInAtlas(i, (int)imgWidthHeights[i].x, (int)imgWidthHeights[i].y, paddings[i], minImageSizeX, minImageSizeY);
// if images are stacked horizontally then there is no padding at the top or bottom
if (packingOrientation == TexturePackingOrientation.vertical)
{
im.h -= paddings[i].topBottom * 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 -= paddings[i].leftRight * 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), maxDimensionX);
}
else
{
outW = Mathf.Min(outW, maxDimensionX);
}
}
else
{
if (atlasMustBePowerOfTwo)
{
outH = Mathf.Min(CeilToNearestPowerOfTwo(outH), maxDimensionY);
}
else
{
outH = Mathf.Min(outH, maxDimensionY);
}
}
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))
{
res = new AtlasPackingResult(paddings.ToArray());
res.rects = new Rect[images.Count];
res.srcImgIdxs = new int[images.Count];
res.atlasX = outW;
res.atlasY = outH;
for (int i = 0; i < images.Count; i++)
{
ImageAreaInAtlas 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;
Debug.Log("Image: " + i + " imgID=" + im.imgId + " x=" + r.x * outW +
" y=" + r.y * outH + " w=" + r.width * outW +
" h=" + r.height * outH + " padding=" + paddings[i] + " outW=" + outW + " outH=" + outH);
}
res.CalcUsedWidthAndHeight();
return(res);
}
Debug.Log("Packing failed returning null atlas result");
return(null);
}
/// <summary>
/// Texture 合并管线第 3 步，创建 Atlas 并保存资源
/// </summary>
/// <returns></returns>
internal static IEnumerator __Step3_BuildAndSaveAtlasesAndStoreResults(ProgressUpdateDelegate progressInfo,
CombineTexturesIntoAtlasesCoroutineResult result,
TexturePipelineData data,
TextureCombineHandler combiner,
ITextureCombinerPacker packer,
AtlasPackingResult atlasPackingResult,
EditorMethodsInterface textureEditorMethods,
AtlasesAndRects resultAtlasesAndRects)
{
//run the garbage collector to free up as much memory as possible before bake to reduce MissingReferenceException problems
GC.Collect();
Texture2D[] atlases = new Texture2D[data.numAtlases];
//StringBuilder report = GenerateReport(data);
//创建图集
yield return(packer.CreateAtlases(progressInfo, data, combiner, atlasPackingResult, atlases, textureEditorMethods));
data.nonTexturePropertyBlender.AdjustNonTextureProperties(data.resultMaterial, data.texPropertyNames, data.distinctMaterialTextures, textureEditorMethods);
if (data.distinctMaterialTextures.Count > 0)
{
data.distinctMaterialTextures[0].AdjustResultMaterialNonTextureProperties(data.resultMaterial, data.texPropertyNames);
}
//结果报告
//if (progressInfo != null)
// progressInfo("Building Report", .7f);
////report on atlases created
//StringBuilder atlasMessage = new StringBuilder();
//atlasMessage.AppendLine("---- Atlases ------");
//for (int i = 0; i < data.numAtlases; i++)
//{
// if (atlases[i] != null)
// {
// atlasMessage.AppendLine("Created Atlas For: " + data.texPropertyNames[i].name + " h=" + atlases[i].height + " w=" + atlases[i].width);
// }
// else if (!_ShouldWeCreateAtlasForThisProperty(i, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
// {
// atlasMessage.AppendLine("Did not create atlas for " + data.texPropertyNames[i].name + " because all source textures were null.");
// }
//}
//report.Append(atlasMessage.ToString());
List <MaterialAndUVRect> mat2rect_map = new List <MaterialAndUVRect>();
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
MaterialPropTexturesSet texSet = data.distinctMaterialTextures[i];
List <MatAndTransformToMerged> mats = texSet.matsAndGOs.mats;
Rect allPropsUseSameTiling_encapsulatingSamplingRect;
Rect propsUseDifferntTiling_obUVRect;
texSet.GetRectsForTextureBakeResults(out allPropsUseSameTiling_encapsulatingSamplingRect, out propsUseDifferntTiling_obUVRect);
for (int j = 0; j < mats.Count; j++)
{
Rect allPropsUseSameTiling_sourceMaterialTiling = texSet.GetMaterialTilingRectForTextureBakerResults(j);
MaterialAndUVRect key = new MaterialAndUVRect(
mats[j].mat,
atlasPackingResult.rects[i],
texSet.allTexturesUseSameMatTiling,
allPropsUseSameTiling_sourceMaterialTiling,
allPropsUseSameTiling_encapsulatingSamplingRect,
propsUseDifferntTiling_obUVRect,
texSet.tilingTreatment,
mats[j].objName);
if (!mat2rect_map.Contains(key))
{
mat2rect_map.Add(key);
}
}
}
resultAtlasesAndRects.atlases = atlases; // one per texture on result shader
resultAtlasesAndRects.texPropertyNames = ShaderTextureProperty.GetNames(data.texPropertyNames); // one per texture on source shader
resultAtlasesAndRects.originMatToRect_map = mat2rect_map;
if (progressInfo != null)
{
progressInfo("Restoring Texture Formats & Read Flags", .8f);
}
combiner._destroyAllTemporaryTextures();
if (textureEditorMethods != null)
{
textureEditorMethods.RestoreReadFlagsAndFormats(progressInfo);
}
//if (report != null)
// Debug.Log(report.ToString());
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)
{
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;
ImageAreaInAtlas[] imgsToAdd = new ImageAreaInAtlas[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);
ImageAreaInAtlas im = imgsToAdd[i] = new ImageAreaInAtlas(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);
}
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 <AtalsAreaNode> atlasNodes = new List <AtalsAreaNode>();
Stack <AtalsAreaNode> stack = new Stack <AtalsAreaNode>();
AtalsAreaNode 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 <ImageAreaInAtlas> images = new List <ImageAreaInAtlas>();
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].nodeAreaRect.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].nodeAreaRect.x;
int outW = atlasNodes[i].nodeAreaRect.w;
int outH = atlasNodes[i].nodeAreaRect.h;
if (atlasMustBePowerOfTwo)
{
outW = Mathf.Min(CeilToNearestPowerOfTwo(res.usedW), atlasNodes[i].nodeAreaRect.w);
outH = Mathf.Min(CeilToNearestPowerOfTwo(res.usedH), atlasNodes[i].nodeAreaRect.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);
normalizeRects(res, paddings[i]);
Debug.Log(String.Format("Done GetRects "));
}
return(rs.ToArray());
}
//------------------ 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)
{
Debug.Log(string.Format("_GetRects 图片数量 ={0}, 最大尺寸X ={1}, 最小尺寸 X={2}, 最小尺寸 Y ={3}, masterImageSizeX={4}, masterImageSizeY={5}, 递归深度 = {6}",
imgWidthHeights.Count, maxDimensionX, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY, recursionDepth));
if (recursionDepth > 10)
{
//最大递归深度设定为 10
Debug.LogError("Maximum recursion depth reached. Couldn't find packing for these textures.");
return(null);
}
float allImageTotalArea = 0;
int maxW = 0;
int maxH = 0;
ImageAreaInAtlas[] imgsToAdd = new ImageAreaInAtlas[imgWidthHeights.Count];
for (int i = 0; i < imgsToAdd.Length; i++)
{
int iw = (int)imgWidthHeights[i].x;
int ih = (int)imgWidthHeights[i].y;
ImageAreaInAtlas im = imgsToAdd[i] = new ImageAreaInAtlas(i, iw, ih, paddings[i], minImageSizeX, minImageSizeY);
allImageTotalArea += im.w * im.h;
maxW = Mathf.Max(maxW, im.w);
maxH = Mathf.Max(maxH, im.h);
}
if ((float)maxH / (float)maxW > 2)
{
Array.Sort(imgsToAdd, new ImageHeightComparer());
}
else if ((float)maxH / (float)maxW < .5)
{
Array.Sort(imgsToAdd, new ImageWidthComparer());
}
else
{
Array.Sort(imgsToAdd, new ImageAreaComparer());
}
//explore the space to find a resonably efficient packing
//探索图片空间以找到合理有效的包装
int sqrtArea = (int)Mathf.Sqrt(allImageTotalArea);
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(allImageTotalArea / maxW), maxH);
}
if (maxH > sqrtArea)
{
idealAtlasW = Mathf.Max(Mathf.CeilToInt(allImageTotalArea / 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();
Debug.Log("Probing h=" + steppedHeight + " w=" + steppedWidth);
if (ProbeSingleAtlas(imgsToAdd, steppedWidth, steppedHeight, allImageTotalArea, maxDimensionX, maxDimensionY, pr))
{
successW = true;
if (bestRoot == null)
{
bestRoot = pr;
}
else if (pr.GetScore(atlasMustBePowerOfTwo) > bestRoot.GetScore(atlasMustBePowerOfTwo))
{
bestRoot = pr;
}
}
else
{
numWIterations++;
steppedWidth = SetStepWidthHeight(steppedWidth, stepW, maxDimensionX);
Debug.Log("增加 Width h=" + steppedHeight + " w=" + steppedWidth);
}
}
steppedHeight = SetStepWidthHeight(steppedHeight, stepH, maxDimensionY);
Debug.Log("增加 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;
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 <ImageAreaInAtlas> images = new List <ImageAreaInAtlas>();
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))
{
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++)
{
ImageAreaInAtlas 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;
Debug.Log("Image: " + i + " imgID=" + im.imgId + " x=" + r.x * outW +
" y=" + r.y * outH + " w=" + r.width * outW +
" h=" + r.height * outH + " padding=" + paddings[i]);
}
res.CalcUsedWidthAndHeight();
return(res);
}
else
{
Debug.Log("==================== REDOING PACKING ================");
//root = null;
return(_GetRectsSingleAtlas(imgWidthHeights, paddings, maxDimensionX, maxDimensionY, newMinSizeX, newMinSizeY, masterImageSizeX, masterImageSizeY, recursionDepth + 1));
}
//Debug.Log(String.Format("Done GetRects atlasW={0} atlasH={1}", bestRoot.w, bestRoot.h));
//return res;
}
public IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
TexturePipelineData data,
TextureCombineHandler combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases,
EditorMethodsInterface textureEditorMethods)
{
Debug.Assert(!data.IsOnlyOneTextureInAtlasReuseTextures());
Rect[] uvRects = packedAtlasRects.rects;
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY);
//create a game object
GameObject renderAtlasesGO = null;
try
{
renderAtlasesGO = new GameObject("MBrenderAtlasesGO");
AtlasPackerRenderTexture atlasRenderTexture = renderAtlasesGO.AddComponent <AtlasPackerRenderTexture>();
renderAtlasesGO.AddComponent <Camera>();
if (data._considerNonTextureProperties)
{
Debug.LogWarning("Blend Non-Texture Properties has limited functionality when used with Mesh Baker Texture Packer Fast.");
}
for (int propIdx = 0; propIdx < data.numAtlases; propIdx++)
{
Texture2D atlas = null;
if (!TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
Debug.Log("Not creating atlas for " + data.texPropertyNames[propIdx].name + " because textures are null and default value parameters are the same.");
}
else
{
GC.Collect();
TextureCombinerPackerBase.CreateTemporaryTexturesForAtlas(data.distinctMaterialTextures, combiner, propIdx, data);
if (progressInfo != null)
{
progressInfo("Creating Atlas '" + data.texPropertyNames[propIdx].name + "'", .01f);
}
// ===========
// configure it
Debug.Log("About to render " + data.texPropertyNames[propIdx].name + " isNormal=" + data.texPropertyNames[propIdx].isNormalMap);
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
// =============
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._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(data.texPropertyNames[propIdx].name); // need to save atlases before doing this
}
}
catch (Exception ex)
{
//Debug.LogError(ex);
Debug.LogException(ex);
}
finally
{
if (renderAtlasesGO != null)
{
MeshBakerUtility.Destroy(renderAtlasesGO);
}
}
yield break;
}
public override IEnumerator CreateAtlases(ProgressUpdateDelegate progressInfo,
TexturePipelineData data,
TextureCombineHandler combiner,
AtlasPackingResult packedAtlasRects,
Texture2D[] atlases,
EditorMethodsInterface textureEditorMethods)
{
Rect[] uvRects = packedAtlasRects.rects;
int atlasSizeX = packedAtlasRects.atlasX;
int atlasSizeY = packedAtlasRects.atlasY;
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 (!TextureCombinerPipeline._ShouldWeCreateAtlasForThisProperty(propIdx, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
{
atlas = null;
Debug.Log("=== Not creating atlas for " + property.name + " because textures are null and default value parameters are the same.");
}
else
{
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++)
{
MaterialPropTexturesSet texSet = data.distinctMaterialTextures[texSetIdx];
MaterialPropTexture matTex = texSet.ts[propIdx];
string s = "Creating Atlas '" + property.name + "' texture " + matTex.GetTexName();
if (progressInfo != null)
{
progressInfo(s, .01f);
}
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));
}
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();
Debug.Log("Saving atlas " + property.name + " w=" + atlas.width + " h=" + atlas.height);
}
atlases[propIdx] = atlas;
if (progressInfo != null)
{
progressInfo("Saving atlas: '" + property.name + "'", .04f);
}
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(data.texPropertyNames[propIdx].name);
}
yield break;
}
AtlasPackingResult[] _GetRectsMultiAtlasHorizontal(List <Vector2> imgWidthHeights, List <AtlasPadding> paddings, int maxDimensionPassedX, int maxDimensionPassedY, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY)
{
List <AtlasPackingResult> rs = new List <AtlasPackingResult>();
int extent = 0;
int maxh = 0;
int maxw = 0;
Debug.Log("Packing rects for: " + imgWidthHeights.Count);
List <ImageAreaInAtlas> allImages = new List <ImageAreaInAtlas>();
for (int i = 0; i < imgWidthHeights.Count; i++)
{
ImageAreaInAtlas im = new ImageAreaInAtlas(i, (int)imgWidthHeights[i].x, (int)imgWidthHeights[i].y, paddings[i], minImageSizeX, minImageSizeY);
im.w -= paddings[i].leftRight * 2;
allImages.Add(im);
}
allImages.Sort(new ImageHeightComparer());
List <ImageAreaInAtlas> images = new List <ImageAreaInAtlas>();
List <Rect> rects = new List <Rect>();
int spaceRemaining = maxDimensionPassedY;
while (allImages.Count > 0 || images.Count > 0)
{
ImageAreaInAtlas im = PopLargestThatFits(allImages, spaceRemaining, maxDimensionPassedY, images.Count == 0);
if (im == null)
{
Debug.Log("Atlas filled creating a new atlas ");
AtlasPackingResult apr = new AtlasPackingResult(paddings.ToArray());
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 = maxDimensionPassedY;
}
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 = maxDimensionPassedY - extent;
}
}
for (int i = 0; i < rs.Count; i++)
{
int outH = rs[i].atlasY;
int outW = Mathf.Min(rs[i].atlasX, maxDimensionPassedX);
if (atlasMustBePowerOfTwo)
{
outH = Mathf.Min(CeilToNearestPowerOfTwo(outH), maxDimensionPassedY);
}
else
{
outH = Mathf.Min(outH, maxDimensionPassedY);
}
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, maxDimensionPassedX, maxDimensionPassedY, paddings[0], 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], paddings[i]);
rs[i].CalcUsedWidthAndHeight();
}
//-----------------------------
return(rs.ToArray());
}
