// multiAtlas=true, powerOfTwo, padding=8 in X
void Test1()
{
texturePacker = new MB2_TexturePacker();
texturePacker.doPowerOfTwoTextures = true;
List <Vector2> images = new List <Vector2>();
images.Add(new Vector2(450, 200));
images.Add(new Vector2(450, 200));
images.Add(new Vector2(450, 80));
texturePacker.LOG_LEVEL = logLevel;
rs = texturePacker.GetRects(images, 512, 8, true);
Debug.Assert(rs.Length == 2);
/*
* Debug.Assert(rs[0].atlasX == 512, rs[0].atlasX);
* Debug.Assert(rs[0].atlasY == 512, rs[0].atlasY);
* Debug.Assert(rs[0].usedW == 466, rs[0].usedW);
* Debug.Assert(rs[0].usedH == 432, rs[0].usedH);
* Debug.Assert(rs[1].atlasX == 512, rs[1].atlasX);
* Debug.Assert(rs[1].atlasY == 256, rs[1].atlasY);
* Debug.Assert(rs[1].usedW == 466, rs[1].usedW);
* Debug.Assert(rs[1].usedH == 96, rs[1].usedH);
*/
Debug.Log("Success! ");
}
public void RunTestHarness()
{
texturePacker = new MB2_TexturePacker();
texturePacker.doPowerOfTwoTextures = doPowerOfTwoTextures;
texturePacker.LOG_LEVEL = logLevel;
rs = texturePacker.GetRects(imgsToAdd, maxDim, padding, doMultiAtlas);
if (rs != null)
{
Debug.Log("NumAtlas= " + rs.Length);
for (int i = 0; i < rs.Length; i++)
{
for (int j = 0; j < rs[i].rects.Length; j++)
{
Rect r = rs[i].rects[j];
r.x *= rs[i].atlasX;
r.y *= rs[i].atlasY;
r.width *= rs[i].atlasX;
r.height *= rs[i].atlasY;
Debug.Log(r.ToString("f5"));
}
Debug.Log("===============");
}
res = "mxX= " + rs[0].atlasX + " mxY= " + rs[0].atlasY;
}
else
{
res = "ERROR: PACKING FAILED";
}
}
// multiAtlas=true, powerOfTwo=false, padding=8 in Y
void Test4()
{
texturePacker = new MB2_TexturePackerRegular();
texturePacker.atlasMustBePowerOfTwo = false;
List <Vector2> images = new List <Vector2>();
images.Add(new Vector2(200, 450));
images.Add(new Vector2(200, 450));
images.Add(new Vector2(80, 450));
texturePacker.LOG_LEVEL = logLevel;
rs = texturePacker.GetRects(images, 512, 8, true);
Debug.Assert(rs.Length == 2);
/*
* Debug.Assert(rs[0].atlasX == 432, rs[0].atlasX);
* Debug.Assert(rs[0].atlasY == 466, rs[0].atlasY);
* Debug.Assert(rs[0].usedW == 432, rs[0].usedW);
* Debug.Assert(rs[0].usedH == 466, rs[0].usedH);
* Debug.Assert(rs[1].atlasX == 96, rs[1].atlasX);
* Debug.Assert(rs[1].atlasY == 466, rs[1].atlasY);
* Debug.Assert(rs[1].usedW == 96, rs[1].usedW);
* Debug.Assert(rs[1].usedH == 466, rs[1].usedH);
*/
Debug.Log("Success! ");
}
public void RunTestHarness()
{
if (packerType == PackerType.regular)
{
texturePacker = new MB2_TexturePackerRegular();
}
else if (packerType == PackerType.horizontal)
{
MB2_TexturePackerHorizontalVert tp = new MB2_TexturePackerHorizontalVert();
tp.packingOrientation = MB2_TexturePackerHorizontalVert.TexturePackingOrientation.horizontal;
texturePacker = tp;
}
else if (packerType == PackerType.vertical)
{
MB2_TexturePackerHorizontalVert tp = new MB2_TexturePackerHorizontalVert();
tp.packingOrientation = MB2_TexturePackerHorizontalVert.TexturePackingOrientation.vertical;
texturePacker = tp;
}
texturePacker.atlasMustBePowerOfTwo = atlasMustBePowerOfTwo;
texturePacker.LOG_LEVEL = logLevel;
rs = texturePacker.GetRects(imgsToAdd, maxDim, padding, doMultiAtlas);
if (rs != null)
{
Debug.Log("NumAtlas= " + rs.Length);
for (int i = 0; i < rs.Length; i++)
{
Debug.Log("AtlasSize " + rs[i].atlasX + " mxY= " + rs[i].atlasY);
for (int j = 0; j < rs[i].rects.Length; j++)
{
Rect r = rs[i].rects[j];
r.x *= rs[i].atlasX;
r.y *= rs[i].atlasY;
r.width *= rs[i].atlasX;
r.height *= rs[i].atlasY;
Debug.Log(r.ToString("f5"));
}
Vector2 offset = new Vector2((i * 1.5f) * maxDim, 0);
AtlasPackingResult apr = rs[i];
Vector2 center = new Vector2(offset.x + apr.atlasX / 2, offset.y + apr.atlasY / 2);
Vector2 sz = new Vector2(apr.atlasX, apr.atlasY);
Debug.Log("===============");
}
if (rs.Length > 0)
{
res = "mxX= " + rs[0].atlasX + " mxY= " + rs[0].atlasY;
}
}
else
{
res = "ERROR: PACKING FAILED";
}
}
public void GenerateListOfImagesToAdd()
{
imgsToAdd = new List <Vector2>();
for (int i = 0; i < numTex; i++)
{
Vector2 img = new Vector2(Mathf.RoundToInt(UnityEngine.Random.Range(min, max) * xMult), Mathf.RoundToInt(UnityEngine.Random.Range(min, max) * yMult));
if (imgsMustBePowerOfTwo)
{
img.x = MB2_TexturePacker.RoundToNearestPositivePowerOfTwo((int)img.x);
img.y = MB2_TexturePacker.RoundToNearestPositivePowerOfTwo((int)img.y);
}
imgsToAdd.Add(img);
}
}
Rect[] __CreateAtlasesMBTexturePacker(ProgressUpdateDelegate progressInfo, int numAtlases, List<MB_TexSet> distinctMaterialTextures, List<string> texPropertyNames, Material resultMaterial, Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods, int _padding){
Rect[] uvRects;
if (distinctMaterialTextures.Count == 1){
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 < numAtlases; i++){
MeshBakerMaterialTexture dmt = distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.t;
resultMaterial.SetTexture(texPropertyNames[i],atlases[i]);
resultMaterial.SetTextureScale(texPropertyNames[i],dmt.scale);
resultMaterial.SetTextureOffset(texPropertyNames[i],dmt.offset);
}
} else {
List<Vector2> imageSizes = new List<Vector2>();
for (int i = 0; i < distinctMaterialTextures.Count; i++){
imageSizes.Add(new Vector2(distinctMaterialTextures[i].idealWidth, distinctMaterialTextures[i].idealHeight));
}
MB2_TexturePacker tp = new MB2_TexturePacker();
int atlasSizeX = 1;
int atlasSizeY = 1;
//todo add sanity warnings for huge atlasesr
int atlasMaxDimension = 4096;
if (textureEditorMethods != null) atlasMaxDimension = textureEditorMethods.GetMaximumAtlasDimension();
uvRects = tp.GetRects(imageSizes,atlasMaxDimension,_padding,out atlasSizeX, out atlasSizeY);
if (LOG_LEVEL >= MB2_LogLevel.info) Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY + " (Max atlas size for platform: " + atlasMaxDimension + ")");
for (int i = 0; i < numAtlases; i++){
GC.Collect();
if (progressInfo != null) progressInfo("Creating Atlas '" + texPropertyNames[i] + "'", .01f);
Color[] atlasPixels = new Color[atlasSizeX * atlasSizeY];//atlas.GetPixels();
for (int j = 0; j < atlasPixels.Length; j++) atlasPixels[j] = Color.clear;
for (int j = 0; j < distinctMaterialTextures.Count; j++){
if (LOG_LEVEL >= MB2_LogLevel.trace) MB2_Log.Trace("Adding texture {0} to atlas {1}", distinctMaterialTextures[j].ts[i].t == null ? "null" : distinctMaterialTextures[j].ts[i].t.ToString(),texPropertyNames[i]);
Rect r = uvRects[j];
Texture2D t = distinctMaterialTextures[j].ts[i].t;
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");
if (textureEditorMethods != null) textureEditorMethods.SetReadWriteFlag(t, true, true);
if (progressInfo != null) progressInfo("Copying to atlas: '" + distinctMaterialTextures[j].ts[i].t + "'", .02f);
CopyScaledAndTiledToAtlas(distinctMaterialTextures[j].ts[i],x,y,ww,hh,fixOutOfBoundsUVs,maxTilingBakeSize,atlasPixels,atlasSizeX,progressInfo);
}
if (progressInfo != null) progressInfo("Applying changes to atlas: '" + texPropertyNames[i] + "'", .03f);
Texture2D atlas = new Texture2D(atlasSizeX, atlasSizeY,TextureFormat.ARGB32, true);
atlas.SetPixels(atlasPixels);
atlas.Apply();
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Saving atlas " + texPropertyNames[i] + " w=" + atlas.width + " h=" + atlas.height);
atlases[i] = atlas;
if (progressInfo != null) progressInfo("Saving atlas: '" + texPropertyNames[i] + "'", .04f);
if (saveAtlasesAsAssets && textureEditorMethods != null){
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[i], texPropertyNames[i], i, resultMaterial);
} else {
resultMaterial.SetTexture(texPropertyNames[i], atlases[i]);
}
resultMaterial.SetTextureOffset(texPropertyNames[i], Vector2.zero);
resultMaterial.SetTextureScale(texPropertyNames[i],Vector2.one);
_destroyTemporaryTextures(); // need to save atlases before doing this
}
}
return uvRects;
}
Rect[] __CreateAtlasesMBTexturePackerFast(ProgressUpdateDelegate progressInfo, int numAtlases, List<MB_TexSet> distinctMaterialTextures, List<ShaderTextureProperty> texPropertyNames, bool[] allTexturesAreNullAndSameColor, Material resultMaterial, Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods, int _padding)
{
Rect[] uvRects;
if (distinctMaterialTextures.Count == 1){
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 < numAtlases; i++){
MeshBakerMaterialTexture dmt = distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.t;
resultMaterial.SetTexture(texPropertyNames[i].name,atlases[i]);
resultMaterial.SetTextureScale(texPropertyNames[i].name,dmt.scale);
resultMaterial.SetTextureOffset(texPropertyNames[i].name,dmt.offset);
}
} else {
List<Vector2> imageSizes = new List<Vector2>();
for (int i = 0; i < distinctMaterialTextures.Count; i++){
imageSizes.Add(new Vector2(distinctMaterialTextures[i].idealWidth, distinctMaterialTextures[i].idealHeight));
}
MB2_TexturePacker tp = new MB2_TexturePacker();
tp.doPowerOfTwoTextures = _meshBakerTexturePackerForcePowerOfTwo;
int atlasSizeX = 1;
int atlasSizeY = 1;
//todo add sanity warnings for huge atlasesr
int atlasMaxDimension = _maxAtlasSize;
//if (textureEditorMethods != null) atlasMaxDimension = textureEditorMethods.GetMaximumAtlasDimension();
uvRects = tp.GetRects(imageSizes,atlasMaxDimension,_padding,out atlasSizeX, out atlasSizeY);
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY + " (Max atlas size for platform: " + atlasMaxDimension + ")");
//create a game object
GameObject renderAtlasesGO = new GameObject("MBrenderAtlasesGO");
MB3_AtlasPackerRenderTexture atlasRenderTexture = renderAtlasesGO.AddComponent<MB3_AtlasPackerRenderTexture>();
for (int i = 0; i < numAtlases; i++){
Texture2D atlas = null;
if (allTexturesAreNullAndSameColor[i]){
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Not creating atlas for " + texPropertyNames[i].name + " because textures are null and default value parameters are the same.");
} else {
GC.Collect();
if (progressInfo != null) progressInfo("Creating Atlas '" + texPropertyNames[i].name + "'", .01f);
// ===========
// configure it
atlasRenderTexture.width = atlasSizeX;
atlasRenderTexture.height = atlasSizeY;
atlasRenderTexture.padding = _padding;
atlasRenderTexture.rects = uvRects;
atlasRenderTexture.textureSets = distinctMaterialTextures;
atlasRenderTexture.indexOfTexSetToRender = 0;
// call render on it
atlas = atlasRenderTexture.OnRenderAtlas();
// destroy it
// =============
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Saving atlas " + texPropertyNames[i].name + " w=" + atlas.width + " h=" + atlas.height);
}
atlases[i] = atlas;
if (progressInfo != null) progressInfo("Saving atlas: '" + texPropertyNames[i].name + "'", .04f);
if (_saveAtlasesAsAssets && textureEditorMethods != null){
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[i], texPropertyNames[i], i, resultMaterial);
} else {
resultMaterial.SetTexture(texPropertyNames[i].name, atlases[i]);
}
resultMaterial.SetTextureOffset(texPropertyNames[i].name, Vector2.zero);
resultMaterial.SetTextureScale(texPropertyNames[i].name,Vector2.one);
_destroyTemporaryTextures(); // need to save atlases before doing this
}
}
return uvRects;
}
Rect[] __CreateAtlasesMBTexturePacker(ProgressUpdateDelegate progressInfo, int numAtlases, List<MB_TexSet> distinctMaterialTextures, List<ShaderTextureProperty> texPropertyNames, bool[] allTexturesAreNullAndSameColor, Material resultMaterial, Texture2D[] atlases, MB2_EditorMethodsInterface textureEditorMethods, int _padding)
{
Rect[] uvRects;
if (distinctMaterialTextures.Count == 1){
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 < numAtlases; i++){
MeshBakerMaterialTexture dmt = distinctMaterialTextures[0].ts[i];
atlases[i] = dmt.t;
resultMaterial.SetTexture(texPropertyNames[i].name,atlases[i]);
resultMaterial.SetTextureScale(texPropertyNames[i].name,dmt.scale);
resultMaterial.SetTextureOffset(texPropertyNames[i].name,dmt.offset);
}
} else {
List<Vector2> imageSizes = new List<Vector2>();
for (int i = 0; i < distinctMaterialTextures.Count; i++){
imageSizes.Add(new Vector2(distinctMaterialTextures[i].idealWidth, distinctMaterialTextures[i].idealHeight));
}
MB2_TexturePacker tp = new MB2_TexturePacker();
tp.doPowerOfTwoTextures = _meshBakerTexturePackerForcePowerOfTwo;
int atlasSizeX = 1;
int atlasSizeY = 1;
//todo add sanity warnings for huge atlasesr
int atlasMaxDimension = _maxAtlasSize;
//if (textureEditorMethods != null) atlasMaxDimension = textureEditorMethods.GetMaximumAtlasDimension();
uvRects = tp.GetRects(imageSizes,atlasMaxDimension,_padding,out atlasSizeX, out atlasSizeY);
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Generated atlas will be " + atlasSizeX + "x" + atlasSizeY + " (Max atlas size for platform: " + atlasMaxDimension + ")");
for (int i = 0; i < numAtlases; i++){
Texture2D atlas = null;
if (allTexturesAreNullAndSameColor[i]){
atlas = null;
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Not creating atlas for " + texPropertyNames[i].name + " because textures are null and default value parameters are the same.");
} else {
GC.Collect();
if (progressInfo != null) progressInfo("Creating Atlas '" + texPropertyNames[i].name + "'", .01f);
//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 (texPropertyNames[i].isNormalMap) isNormalMap = true;
// for (int j = 0; j < atlasPixels.Length; j++) {
// for (int k = 0; k < atlasSizeX; k++){
// atlasPixels[j][k] = GetColorIfNoTexture(
// if (isNormalMap){
// atlasPixels[j][k] = new Color(.5f,.5f,1f); //neutral bluish for normal maps
// } else {
// atlasPixels[j][k] = Color.clear;
// }
// }
// }
for (int j = 0; j < distinctMaterialTextures.Count; j++){
if (LOG_LEVEL >= MB2_LogLevel.trace) MB2_Log.Trace("Adding texture {0} to atlas {1}", distinctMaterialTextures[j].ts[i].t == null ? "null" : distinctMaterialTextures[j].ts[i].t.ToString(),texPropertyNames[i]);
Rect r = uvRects[j];
Texture2D t = distinctMaterialTextures[j].ts[i].t;
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");
if (textureEditorMethods != null) textureEditorMethods.SetReadWriteFlag(t, true, true);
if (progressInfo != null) progressInfo("Copying to atlas: '" + distinctMaterialTextures[j].ts[i].t + "'", .02f);
CopyScaledAndTiledToAtlas(distinctMaterialTextures[j].ts[i],x,y,ww,hh,_fixOutOfBoundsUVs,_maxTilingBakeSize,atlasPixels,atlasSizeX,isNormalMap,progressInfo);
}
if (progressInfo != null) progressInfo("Applying changes to atlas: '" + texPropertyNames[i].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 " + texPropertyNames[i].name + " w=" + atlas.width + " h=" + atlas.height);
}
atlases[i] = atlas;
if (progressInfo != null) progressInfo("Saving atlas: '" + texPropertyNames[i].name + "'", .04f);
if (_saveAtlasesAsAssets && textureEditorMethods != null){
textureEditorMethods.SaveAtlasToAssetDatabase(atlases[i], texPropertyNames[i], i, resultMaterial);
} else {
resultMaterial.SetTexture(texPropertyNames[i].name, atlases[i]);
}
resultMaterial.SetTextureOffset(texPropertyNames[i].name, Vector2.zero);
resultMaterial.SetTextureScale(texPropertyNames[i].name,Vector2.one);
_destroyTemporaryTextures(); // need to save atlases before doing this
}
}
return uvRects;
}
