public MaterialToAtlasRectMapper(TextureBakeResults res)
{
resultAsset = res;
matsAndSrcUVRect = res.materialsAndUVRects;
//count the number of times a material appears in the atlas. used for fast lookup
numTimesMatAppearsInAtlas = new int[matsAndSrcUVRect.Length];
for (int i = 0; i < matsAndSrcUVRect.Length; i++)
{
if (numTimesMatAppearsInAtlas[i] > 1)
{
continue;
}
int count = 1;
for (int j = i + 1; j < matsAndSrcUVRect.Length; j++)
{
if (matsAndSrcUVRect[i].material == matsAndSrcUVRect[j].material)
{
count++;
}
}
numTimesMatAppearsInAtlas[i] = count;
if (count > 1)
{
for (int j = i + 1; j < matsAndSrcUVRect.Length; j++)
{
if (matsAndSrcUVRect[i].material == matsAndSrcUVRect[j].material)
{
numTimesMatAppearsInAtlas[j] = count;
}
}
}
}
}
/// <summary>
/// 创建临时合并材质
/// </summary>
protected virtual bool _CreateTemporaryTextrueBakeResult(GameObject[] gos, List <Material> matsOnTargetRenderer)
{
if (GetNumObjectsInCombined() > 0)
{
Debug.LogError("Can't add objects if there are already objects in combined mesh when 'Texture Bake Result' is not set. " +
"Perhaps enable 'Clear Buffers After Bake'");
return(false);
}
_usingTemporaryTextureBakeResult = true;
_textureBakeResults = TextureBakeResults.CreateForMaterialsOnRenderer(gos, matsOnTargetRenderer);
return(true);
}
void unpackMat2RectMap(TextureBakeResults tbr)
{
List <Material> ms = new List <Material>();
List <MaterialAndUVRect> mss = new List <MaterialAndUVRect>();
List <Rect> rs = new List <Rect>();
for (int i = 0; i < OnCombinedTexturesCoroutineAtlasesAndRects.Length; i++)
{
AtlasesAndRects newMesh = OnCombinedTexturesCoroutineAtlasesAndRects[i];
List <MaterialAndUVRect> map = newMesh.originMatToRect_map;
if (map != null)
{
for (int j = 0; j < map.Count; j++)
{
mss.Add(map[j]);
ms.Add(map[j].material);
rs.Add(map[j].atlasRect);
}
}
}
//tbr.version = MB2_TextureBakeResults.VERSION;
tbr.materialsAndUVRects = mss.ToArray();
}
/// <summary>
/// Creates for materials on renderer.
/// 生成 TextureBakeResult，如果要合并的所有游戏物体都使用相同的材质，则可以使用该 TextureBakeResult。
/// 将游戏物体的渲染器所使用的所有材质映射到 Atlas 中的矩形0,0..1,1 中。
/// 用于创建临时 TextureCombineResult，Mesh 合并时，TextureCombineResult 为空时调用
/// </summary>
public static TextureBakeResults CreateForMaterialsOnRenderer(GameObject[] gos, List <Material> matsOnTargetRenderer)
{
HashSet <Material> fullMaterialList = new HashSet <Material>(matsOnTargetRenderer);
for (int i = 0; i < gos.Length; i++)
{
if (gos[i] == null)
{
Debug.LogError(string.Format("列表中第 {0} 个游戏物体为空", i));
return(null);
}
Material[] oMats = MeshBakerUtility.GetGOMaterials(gos[i]);
if (oMats.Length == 0)
{
Debug.LogError(string.Format("列表中第 {0} 个游戏物体没有 renderer 组件", i));
return(null);
}
for (int j = 0; j < oMats.Length; j++)
{
if (!fullMaterialList.Contains(oMats[j]))
{
fullMaterialList.Add(oMats[j]);
}
}
}
//所有游戏位图的源材质
Material[] rms = new Material[fullMaterialList.Count];
fullMaterialList.CopyTo(rms);
TextureBakeResults textureCombineResult = (TextureBakeResults)CreateInstance(typeof(TextureBakeResults));
List <MaterialAndUVRect> sourceMatUVRects = new List <MaterialAndUVRect>();
for (int i = 0; i < rms.Length; i++)
{
if (rms[i] != null)
{
MaterialAndUVRect matAndUVRect = new MaterialAndUVRect(rms[i],
new Rect(0f, 0f, 1f, 1f),
true,
new Rect(0f, 0f, 1f, 1f),
new Rect(0f, 0f, 1f, 1f),
new Rect(0, 0, 0, 0),
TextureTilingTreatment.none,
"");
if (!sourceMatUVRects.Contains(matAndUVRect))
{
sourceMatUVRects.Add(matAndUVRect);
}
}
}
textureCombineResult.resultMaterials = new MultiMaterial[sourceMatUVRects.Count];
for (int i = 0; i < sourceMatUVRects.Count; i++)
{
textureCombineResult.resultMaterials[i] = new MultiMaterial();
List <Material> sourceMats = new List <Material>();
sourceMats.Add(sourceMatUVRects[i].material);
textureCombineResult.resultMaterials[i].sourceMaterials = sourceMats;
textureCombineResult.resultMaterials[i].combinedMaterial = sourceMatUVRects[i].material;
textureCombineResult.resultMaterials[i].considerMeshUVs = false;
}
if (rms.Length == 1)
{
textureCombineResult.doMultiMaterial = false;
}
else
{
textureCombineResult.doMultiMaterial = true;
}
textureCombineResult.materialsAndUVRects = sourceMatUVRects.ToArray();
return(textureCombineResult);
}
