private void OptimizeAtlas()
{
UMAData.AtlasList umaAtlasList = umaData.atlasList;
for (int atlasIndex = 0; atlasIndex < umaAtlasList.atlas.Count; atlasIndex++)
{
Vector2 usedArea = new Vector2(0, 0);
for (int atlasElementIndex = 0; atlasElementIndex < umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions.Count; atlasElementIndex++)
{
if (umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex].atlasRegion.xMax > usedArea.x)
{
usedArea.x = umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex].atlasRegion.xMax;
}
if (umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex].atlasRegion.yMax > usedArea.y)
{
usedArea.y = umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex].atlasRegion.yMax;
}
}
Vector2 tempResolution = new Vector2(umaGenerator.atlasResolution, umaGenerator.atlasResolution);
bool done = false;
while (!done)
{
if (tempResolution.x * 0.5f >= usedArea.x)
{
tempResolution = new Vector2(tempResolution.x * 0.5f, tempResolution.y);
}
else
{
done = true;
}
}
done = false;
while (!done)
{
if (tempResolution.y * 0.5f >= usedArea.y)
{
tempResolution = new Vector2(tempResolution.x, tempResolution.y * 0.5f);
}
else
{
done = true;
}
}
umaAtlasList.atlas[atlasIndex].cropResolution = tempResolution;
}
}
private void UpdateUV()
{
UMAData.AtlasList umaAtlasList = umaData.atlasList;
for (int atlasIndex = 0; atlasIndex < umaAtlasList.atlas.Count; atlasIndex++)
{
Vector2 finalAtlasAspect = new Vector2(umaGenerator.atlasResolution / umaAtlasList.atlas[atlasIndex].cropResolution.x, umaGenerator.atlasResolution / umaAtlasList.atlas[atlasIndex].cropResolution.y);
for (int atlasElementIndex = 0; atlasElementIndex < umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions.Count; atlasElementIndex++)
{
Rect tempRect = umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex].atlasRegion;
tempRect.xMin = tempRect.xMin * finalAtlasAspect.x;
tempRect.xMax = tempRect.xMax * finalAtlasAspect.x;
tempRect.yMin = tempRect.yMin * finalAtlasAspect.y;
tempRect.yMax = tempRect.yMax * finalAtlasAspect.y;
umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex].atlasRegion = tempRect;
}
}
}
private void CalculateRects()
{
Rect nullRect = new Rect(0, 0, 0, 0);
UMAData.AtlasList umaAtlasList = umaData.atlasList;
for (int atlasIndex = 0; atlasIndex < umaAtlasList.atlas.Count; atlasIndex++)
{
umaAtlasList.atlas[atlasIndex].cropResolution = new Vector2(umaGenerator.atlasResolution, umaGenerator.atlasResolution);
umaAtlasList.atlas[atlasIndex].resolutionScale = atlasResolutionScale;
umaAtlasList.atlas[atlasIndex].mipmap = mipMapAdjust;
packTexture.Init(umaGenerator.atlasResolution, umaGenerator.atlasResolution, false);
bool textureFit = true;
for (int atlasElementIndex = 0; atlasElementIndex < umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions.Count; atlasElementIndex++)
{
UMAData.AtlasMaterialDefinition tempMaterialDef = umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex];
if (tempMaterialDef.atlasRegion == nullRect)
{
tempMaterialDef.atlasRegion = packTexture.Insert(Mathf.FloorToInt(tempMaterialDef.source.baseTexture[0].width * umaAtlasList.atlas[atlasIndex].resolutionScale * tempMaterialDef.source.slotData.overlayScale), Mathf.FloorToInt(tempMaterialDef.source.baseTexture[0].height * umaAtlasList.atlas[atlasIndex].resolutionScale * tempMaterialDef.source.slotData.overlayScale), MaxRectsBinPack.FreeRectChoiceHeuristic.RectBestLongSideFit);
tempMaterialDef.isRectShared = false;
umaAtlasList.atlas[atlasIndex].shader = tempMaterialDef.source.materialSample.shader;
if (tempMaterialDef.atlasRegion == nullRect)
{
textureFit = false;
if (umaGenerator.fitAtlas)
{
Debug.LogWarning("Atlas resolution is too small, Textures will be reduced.");
}
else
{
Debug.LogError("Atlas resolution is too small, not all textures will fit.");
}
}
for (int atlasElementIndex2 = atlasElementIndex; atlasElementIndex2 < umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions.Count; atlasElementIndex2++)
{
if (atlasElementIndex != atlasElementIndex2)
{
if (tempMaterialDef.source.baseTexture[0] == umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex2].source.baseTexture[0])
{
umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex2].atlasRegion = tempMaterialDef.atlasRegion;
umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex2].isRectShared = true;
}
}
}
}
if (!textureFit && umaGenerator.fitAtlas)
{
//Reset calculation and reduce texture sizes
textureFit = true;
atlasElementIndex = -1;
umaAtlasList.atlas[atlasIndex].resolutionScale = umaAtlasList.atlas[atlasIndex].resolutionScale * 0.5f;
umaAtlasList.atlas[atlasIndex].mipmap++;
packTexture.Init(umaGenerator.atlasResolution, umaGenerator.atlasResolution, false);
for (int atlasElementIndex2 = 0; atlasElementIndex2 < umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions.Count; atlasElementIndex2++)
{
umaAtlasList.atlas[atlasIndex].atlasMaterialDefinitions[atlasElementIndex2].atlasRegion = nullRect;
}
}
}
}
}
