//进行完整性检查合并
public void DoIntegrityCheckMergedEncapsulatingSamplingRects(List <MaterialPropTexturesSet> distinctMaterialTextures)
{
if (MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
for (int i = 0; i < distinctMaterialTextures.Count; i++)
{
MaterialPropTexturesSet tx1 = distinctMaterialTextures[i];
if (!tx1.allTexturesUseSameMatTiling)
{
continue;
}
for (int matIdx = 0; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
MatAndTransformToMerged mat = tx1.matsAndGOs.mats[matIdx];
DRect uvR = mat.obUVRectIfTilingSame;
DRect matR = mat.materialTiling;
//if (!MB2_TextureBakeResults.IsMeshAndMaterialRectEnclosedByAtlasRect(tx1.tilingTreatment,
// uvR.GetRect(), matR.GetRect(), tx1.ts[0].GetEncapsulatingSamplingRect().GetRect(),MB2_LogLevel.info))
//{
// Debug.LogErrorFormat("mesh " + tx1.matsAndGOs.mats[matIdx].objName + "\n" +
// " uv=" + uvR + "\n" +
// " mat=" + matR.GetRect().ToString("f5") + "\n" +
// " samplingRect=" + tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling.GetRect().ToString("f4") + "\n" +
// " encapsulatingRect " + tx1.ts[0].GetEncapsulatingSamplingRect().GetRect().ToString("f4") + "\n");
// Debug.LogErrorFormat(string.Format("Integrity check failed. " + tx1.matsAndGOs.mats[matIdx].objName + " Encapsulating sampling rect failed to contain potentialRect\n"));
// MB2_TextureBakeResults.IsMeshAndMaterialRectEnclosedByAtlasRect(tx1.tilingTreatment, uvR.GetRect(), matR.GetRect(), tx1.ts[0].GetEncapsulatingSamplingRect().GetRect(), MB2_LogLevel.trace);
// Debug.Assert(false);
//}
//}
}
}
}
}
public override bool Equals(object obj)
{
if (obj is MatAndTransformToMerged)
{
MatAndTransformToMerged o = (MatAndTransformToMerged)obj;
if (o.mat == mat && o.obUVRectIfTilingSame == obUVRectIfTilingSame)
{
return(true);
}
}
return(false);
}
/// <summary>
/// 第一步：
/// 写入 TexturePipelineData 的 MaterialPropTexturesSet 列表，和 usedObjsToMesh 列表
/// 每个TexSet在 Atlas 中都是一个矩形。
/// 如果 allowedMaterialsFilter （过滤器）为空，那么将收集 allObjsToMesh 上的所有材质，usedObjsToMesh 将与allObjsToMesh相同
/// 否则，将仅包括allowedMaterialsFilter中的材料，而usedObjsToMesh将是使用这些材料的objs。
/// </summary>
internal static IEnumerator __Step1_CollectDistinctMatTexturesAndUsedObjects(ProgressUpdateDelegate progressInfo,
CombineTexturesIntoAtlasesCoroutineResult result,
TexturePipelineData data,
EditorMethodsInterface textureEditorMethods,
List <GameObject> usedObjsToMesh)
{
// Collect distinct list of textures to combine from the materials on objsToCombine
// 收集UsedObjects上不同的材质纹理
bool outOfBoundsUVs = false;
Dictionary <int, MeshAnalysisResult[]> meshAnalysisResultsCache = new Dictionary <int, MeshAnalysisResult[]>(); //cache results
for (int i = 0; i < data.allObjsToMesh.Count; i++)
{
GameObject obj = data.allObjsToMesh[i];
//报道进度
if (progressInfo != null)
{
progressInfo("Collecting textures for " + obj, ((float)i) / data.allObjsToMesh.Count / 2f);
}
if (obj == null)
{
Debug.LogError("合并游戏物体列表中包含空物体");
result.success = false;
yield break;
}
Mesh sharedMesh = MeshBakerUtility.GetMesh(obj);
if (sharedMesh == null)
{
Debug.LogError("游戏物体 " + obj.name + " 网格为空");
result.success = false;
yield break;
}
Material[] sharedMaterials = MeshBakerUtility.GetGOMaterials(obj);
if (sharedMaterials.Length == 0)
{
Debug.LogError("游戏物体 " + obj.name + " 材质为空.");
result.success = false;
yield break;
}
//analyze mesh or grab cached result of previous analysis, stores one result for each submesh
//处理网格数据
MeshAnalysisResult[] meshAnalysisResults;//每个游戏物体的主网格子网格数据数组
if (!meshAnalysisResultsCache.TryGetValue(sharedMesh.GetInstanceID(), out meshAnalysisResults))
{
meshAnalysisResults = new MeshAnalysisResult[sharedMesh.subMeshCount];
for (int j = 0; j < sharedMesh.subMeshCount; j++)
{
MeshBakerUtility.hasOutOfBoundsUVs(sharedMesh, ref meshAnalysisResults[j], j);
if (data._normalizeTexelDensity)
{
meshAnalysisResults[j].submeshArea = GetSubmeshArea(sharedMesh, j);
}
if (data._fixOutOfBoundsUVs && !meshAnalysisResults[j].hasUVs)
{
meshAnalysisResults[j].uvRect = new Rect(0, 0, 1, 1);
Debug.LogWarning("Mesh for object " + obj + " has no UV channel but 'consider UVs' is enabled." +
" Assuming UVs will be generated filling 0,0,1,1 rectangle.");
}
}
meshAnalysisResultsCache.Add(sharedMesh.GetInstanceID(), meshAnalysisResults);
}
if (data._fixOutOfBoundsUVs)
{
Debug.Log("Mesh Analysis for object " + obj +
" numSubmesh=" + meshAnalysisResults.Length +
" HasOBUV=" + meshAnalysisResults[0].hasOutOfBoundsUVs +
" UVrectSubmesh0=" + meshAnalysisResults[0].uvRect);
}
//处理材质数据
for (int matIdx = 0; matIdx < sharedMaterials.Length; matIdx++)
{
////for each submesh
//if (progressInfo != null)
//{
// progressInfo(string.Format("Collecting textures for {0} submesh {1}", obj, matIdx),
// ((float)i) / data.allObjsToMesh.Count / 2f);
//}
Material mat = sharedMaterials[matIdx];
// 材质过滤器
if (data.allowedMaterialsFilter != null && !data.allowedMaterialsFilter.Contains(mat))
{
continue;
}
outOfBoundsUVs = outOfBoundsUVs || meshAnalysisResults[matIdx].hasOutOfBoundsUVs;
if (mat.name.Contains("(Instance)"))
{
Debug.LogError("The sharedMaterial on object " + obj.name + " has been 'Instanced'." +
" This was probably caused by a script accessing the meshRender.material property in the editor. " +
" The material to UV Rectangle mapping will be incorrect. " +
"To fix this recreate the object from its prefab or re-assign its material from the correct asset.");
result.success = false;
yield break;
}
if (data._fixOutOfBoundsUVs)
{
if (!MeshBakerUtility.AreAllSharedMaterialsDistinct(sharedMaterials))
{
Debug.LogWarning("游戏物体 " + obj.name + " 使用相同的材质在多个子网格. " +
"可能生成奇怪的 resultAtlasesAndRects，尤其是与 _fixOutOfBoundsUVs 为 true 时");
}
}
//材质属性所用到的 Texutre
MaterialPropTexture[] mts = new MaterialPropTexture[data.texPropertyNames.Count];
for (int propIdx = 0; propIdx < data.texPropertyNames.Count; propIdx++)
{
Texture tx = null;
Vector2 scale = Vector2.one;
Vector2 offset = Vector2.zero;
float texelDensity = 0f;
if (mat.HasProperty(data.texPropertyNames[propIdx].name))
{
Texture txx = GetTextureConsideringStandardShaderKeywords(data.resultMaterial.shader.name, mat, data.texPropertyNames[propIdx].name);
if (txx != null)
{
if (txx is Texture2D)
{
//TextureFormat 验证
tx = txx;
TextureFormat f = ((Texture2D)tx).format;
bool isNormalMap = false;
if (!Application.isPlaying && textureEditorMethods != null)
{
isNormalMap = textureEditorMethods.IsNormalMap((Texture2D)tx);
}
if ((f == TextureFormat.ARGB32 ||
f == TextureFormat.RGBA32 ||
f == TextureFormat.BGRA32 ||
f == TextureFormat.RGB24 ||
f == TextureFormat.Alpha8) && !isNormalMap) //DXT5 does not work
{
//可使用
}
else
{
//TRIED to copy texture using tex2.SetPixels(tex1.GetPixels()) but bug in 3.5 means DTX1 and 5 compressed textures come out skewe
//尝试使用tex2.SetPixels（tex1.GetPixels（））复制纹理，但是3.5中的bug意味着DTX1和5压缩纹理出现扭曲
if (Application.isPlaying && data._packingAlgorithm != PackingAlgorithmEnum.MeshBakerTexturePacker_Fast)
{
Debug.LogWarning("合并列表中，游戏物体 " + obj.name + " 所使用的 Texture " +
tx.name + " 使用的格式 " + f +
"不是: ARGB32, RGBA32, BGRA32, RGB24, Alpha8 或 DXT. " +
"无法在运行时重新设置尺寸" +
"If format says 'compressed' try changing it to 'truecolor'");
result.success = false;
yield break;
}
else
{
tx = (Texture2D)mat.GetTexture(data.texPropertyNames[propIdx].name);
}
}
}
else
{
Debug.LogError("合并列表中，游戏物体 " + obj.name + " 渲染网格使用的 Texture 不是 Texture2D. ");
result.success = false;
yield break;
}
}
//像素密度
if (tx != null && data._normalizeTexelDensity)
{
//不考虑平铺和UV采样超出范围
if (meshAnalysisResults[propIdx].submeshArea == 0)
{
texelDensity = 0f;
}
else
{
texelDensity = (tx.width * tx.height) / (meshAnalysisResults[propIdx].submeshArea);
}
}
//规格，偏移
GetMaterialScaleAndOffset(mat, data.texPropertyNames[propIdx].name, out offset, out scale);
}
mts[propIdx] = new MaterialPropTexture(tx, offset, scale, texelDensity);
}
// 收集材质参数值的平均值
data.nonTexturePropertyBlender.CollectAverageValuesOfNonTextureProperties(data.resultMaterial, mat);
Vector2 obUVscale = new Vector2(meshAnalysisResults[matIdx].uvRect.width, meshAnalysisResults[matIdx].uvRect.height);
Vector2 obUVoffset = new Vector2(meshAnalysisResults[matIdx].uvRect.x, meshAnalysisResults[matIdx].uvRect.y);
//Add to distinct set of textures if not already there
TextureTilingTreatment tilingTreatment = TextureTilingTreatment.none;
if (data._fixOutOfBoundsUVs)
{
tilingTreatment = TextureTilingTreatment.considerUVs;
}
//合并信息 distinctMaterialTextures 数据设置
//材质各参数 Texture，及 UV 偏移数据映射
MaterialPropTexturesSet setOfTexs = new MaterialPropTexturesSet(mts, obUVoffset, obUVscale, tilingTreatment); //one of these per submesh
//材质及各变化参数Rect 数据
MatAndTransformToMerged matt = new MatAndTransformToMerged(new DRect(obUVoffset, obUVscale), data._fixOutOfBoundsUVs, mat);
setOfTexs.matsAndGOs.mats.Add(matt);
MaterialPropTexturesSet setOfTexs2 = data.distinctMaterialTextures.Find(x => x.IsEqual(setOfTexs, data._fixOutOfBoundsUVs, data.nonTexturePropertyBlender));
if (setOfTexs2 != null)
{
setOfTexs = setOfTexs2;
}
else
{
data.distinctMaterialTextures.Add(setOfTexs);
}
if (!setOfTexs.matsAndGOs.mats.Contains(matt))
{
setOfTexs.matsAndGOs.mats.Add(matt);
}
if (!setOfTexs.matsAndGOs.gos.Contains(obj))
{
setOfTexs.matsAndGOs.gos.Add(obj);
//已使用 游戏物体
if (!usedObjsToMesh.Contains(obj))
{
usedObjsToMesh.Add(obj);
}
}
}
}
Debug.Log(string.Format("第一阶段完成;" +
"参与合并的游戏物体的不同材质，各自包含与shader属性对应的不同的纹理，收集到 {0} 组 textures，即 {0} 个不同的材质，" +
"fixOutOfBoundsUV:{1} " +
"considerNonTextureProperties:{2}",
data.distinctMaterialTextures.Count, data._fixOutOfBoundsUVs, data._considerNonTextureProperties));
if (data.distinctMaterialTextures.Count == 0)
{
Debug.LogError("None of the source object materials matched any of the allowed materials for submesh with result material: " + data.resultMaterial);
result.success = false;
yield break;
}
TextureCombinerMerging merger = new TextureCombinerMerging(data._considerNonTextureProperties,
data.nonTexturePropertyBlender, data._fixOutOfBoundsUVs);
merger.MergeOverlappingDistinctMaterialTexturesAndCalcMaterialSubrects(data.distinctMaterialTextures);
yield break;
}