/// <param name="mat">The Material</param>
/// <param name="destRect">The rect in the atlas this material maps to</param>
/// <param name="allPropsUseSameTiling">If true then use sourceMaterialTiling and samplingEncapsulatingRect.
/// if false then use srcUVsamplingRect. None used values should be 0,0,0,0.</param>
/// <param name="sourceMaterialTiling">allPropsUseSameTiling_sourceMaterialTiling</param>
/// <param name="samplingEncapsulatingRect">allPropsUseSameTiling_samplingEncapsulatinRect</param>
/// <param name="srcUVsamplingRect">propsUseDifferntTiling_srcUVsamplingRect</param>
public MaterialAndUVRect(Material mat,
Rect destRect,
bool allPropsUseSameTiling,
Rect sourceMaterialTiling,
Rect samplingEncapsulatingRect,
Rect srcUVsamplingRect,
TextureTilingTreatment treatment,
string objName)
{
if (allPropsUseSameTiling)
{
Debug.Assert(srcUVsamplingRect == new Rect(0, 0, 0, 0));
}
if (!allPropsUseSameTiling)
{
Debug.Assert(samplingEncapsulatingRect == new Rect(0, 0, 0, 0));
Debug.Assert(sourceMaterialTiling == new Rect(0, 0, 0, 0));
}
material = mat;
atlasRect = destRect;
tilingTreatment = treatment;
this.allPropsUseSameTiling = allPropsUseSameTiling;
allPropsUseSameTiling_sourceMaterialTiling = sourceMaterialTiling;
allPropsUseSameTiling_samplingEncapsulatinRect = samplingEncapsulatingRect;
propsUseDifferntTiling_srcUVsamplingRect = srcUVsamplingRect;
srcObjName = objName;
}
public void SetTilingTreatmentAndAdjustEncapsulatingSamplingRect(TextureTilingTreatment newTilingTreatment)
{
Debug.Assert(texSet.allTexturesUseSameMatTiling == true);
if (texSet.tilingTreatment == TextureTilingTreatment.edgeToEdgeX)
{
foreach (MaterialPropTexture t in texSet.ts)
{
DRect r = t.GetEncapsulatingSamplingRect();
r.width = 1;
t.SetEncapsulatingSamplingRect(texSet, r);
}
}
else if (texSet.tilingTreatment == TextureTilingTreatment.edgeToEdgeY)
{
foreach (MaterialPropTexture t in texSet.ts)
{
DRect r = t.GetEncapsulatingSamplingRect();
r.height = 1;
t.SetEncapsulatingSamplingRect(texSet, r);
}
}
else if (texSet.tilingTreatment == TextureTilingTreatment.edgeToEdgeXY)
{
foreach (MaterialPropTexture t in texSet.ts)
{
DRect r = t.GetEncapsulatingSamplingRect();
r.height = 1;
r.width = 1;
t.SetEncapsulatingSamplingRect(texSet, r);
}
}
}
public MaterialPropTexturesSet(MaterialPropTexture[] tss, Vector2 uvOffset, Vector2 uvScale, TextureTilingTreatment treatment)
{
ts = tss;
tilingTreatment = treatment;
obUVoffset = uvOffset;
obUVscale = uvScale;
allTexturesUseSameMatTiling = false;
thisIsOnlyTexSetInAtlas = false;
matsAndGOs = new MatsAndGOs();
matsAndGOs.mats = new List <MatAndTransformToMerged>();
matsAndGOs.gos = new List <GameObject>();
pipelineVariation = new PipelineVariationSomeTexturesUseDifferentMatTiling(this);
}
/// <summary>
/// 验证
/// </summary>
/// <param name="tilingTreatment"></param>
/// <param name="uvR"></param>
/// <param name="sourceMaterialTiling"></param>
/// <param name="samplingEncapsulatinRect"></param>
/// <returns></returns>
public static bool IsMeshAndMaterialRectEnclosedByAtlasRect(TextureTilingTreatment tilingTreatment,
Rect uvR,
Rect sourceMaterialTiling,
Rect samplingEncapsulatinRect)
{
Rect potentialRect = new Rect();
potentialRect = CombineTransforms(ref uvR, ref sourceMaterialTiling);
Debug.Log("IsMeshAndMaterialRectEnclosedByAtlasRect Rect in atlas uvR=" + uvR.ToString("f5") +
" sourceMaterialTiling=" + sourceMaterialTiling.ToString("f5") +
"Potential Rect (must fit in encapsulating) " + potentialRect.ToString("f5") +
" encapsulating=" + samplingEncapsulatinRect.ToString("f5") +
" tilingTreatment=" + tilingTreatment);
if (tilingTreatment == TextureTilingTreatment.edgeToEdgeX)
{
if (LineSegmentContainsShifted(samplingEncapsulatinRect.y, samplingEncapsulatinRect.height, potentialRect.y, potentialRect.height))
{
return(true);
}
}
else if (tilingTreatment == TextureTilingTreatment.edgeToEdgeY)
{
if (LineSegmentContainsShifted(samplingEncapsulatinRect.x, samplingEncapsulatinRect.width, potentialRect.x, potentialRect.width))
{
return(true);
}
}
else if (tilingTreatment == TextureTilingTreatment.edgeToEdgeXY)
{
//only one rect in atlas and is edge to edge in both X and Y directions.
return(true);
}
else
{
if (RectContainsShifted(ref samplingEncapsulatinRect, ref potentialRect))
{
return(true);
}
}
return(false);
}
/// <summary>
/// A material can appear more than once in an atlas if using fixOutOfBoundsUVs.
/// in this case you need to use the UV rect of the mesh to find the correct rectangle.
/// If the all properties on the mat use the same tiling then
/// encapsulatingRect can be larger and will include baked UV and material tiling
/// If mat uses different tiling for different maps then encapsulatingRect is the uvs of
/// source mesh used to bake atlas and sourceMaterialTilingOut is 0,0,1,1. This works because
/// material tiling was baked into the atlas.
/// 尝试获取源物体材质在合并材质中的映射信息
/// 如果使用fixOutOfBoundsUVs，一个材质可以在图集中出现多次。在这种情况下，您需要使用网格的UV矩形来找到正确的矩形。
/// 如果材质上的所有属性都使用相同的拼贴，则 encapsulatingRect 可以更大，并将包含烘焙的UV和材质平铺
/// 如果mat 对不同映射使用不同的tiling，则 encapsulatingRect 是用于烘焙图集的 uvs 且 sourceMaterialTilingOut 为0,0,1,1。
/// 材质 tiling 烘焙到 atlas 中。
/// </summary>
public bool TryGetMaterialToUVRectMap(Material sourceMat,
Mesh sourceMesh,
int submeshIdx,
int idxInResultMats,
MeshChannelsCache meshChannelCache,
Dictionary <int, MeshAnalysisResult[]> meshAnalysisCache,
out TextureTilingTreatment tilingTreatment,
out Rect rectInAtlas,
out Rect encapsulatingRectOut,
out Rect sourceMaterialTilingOut,
ref string errorMsg)
{
for (int i = 0; i < resultAsset.materialsAndUVRects.Length; i++)
{
resultAsset.materialsAndUVRects[i].allPropsUseSameTiling = true;
}
tilingTreatment = TextureTilingTreatment.unknown;
if (resultAsset.materialsAndUVRects.Length == 0)
{
errorMsg = "Texture Bake Result 资源中的 材质UVRect 映射信息为空，需重新合并";
rectInAtlas = new Rect();
encapsulatingRectOut = new Rect();
sourceMaterialTilingOut = new Rect();
return(false);
}
if (sourceMat == null)
{
rectInAtlas = new Rect();
encapsulatingRectOut = new Rect();
sourceMaterialTilingOut = new Rect();
errorMsg = string.Format("网格 {0} 的子网格 {1} 缺少材质，无法获取映射关系", sourceMesh.name, submeshIdx);
return(false);
}
if (submeshIdx >= sourceMesh.subMeshCount)
{
errorMsg = "参数错误 ：Submesh index 大于子网格数量";
rectInAtlas = new Rect();
encapsulatingRectOut = new Rect();
sourceMaterialTilingOut = new Rect();
return(false);
}
//源材质在 matsAndSrcUVRect 的 ID
int idx = -1;
for (int i = 0; i < matsAndSrcUVRect.Length; i++)
{
if (sourceMat == matsAndSrcUVRect[i].material)
{
idx = i;
break;
}
}
if (idx == -1)
{
rectInAtlas = new Rect();
encapsulatingRectOut = new Rect();
sourceMaterialTilingOut = new Rect();
errorMsg = string.Format("Material {0} 在 Texture Bake Result 中无法找到", sourceMat.name);
return(false);
}
//不处理网格 UVs
if (!resultAsset.resultMaterials[idxInResultMats].considerMeshUVs)
{
if (numTimesMatAppearsInAtlas[idx] != 1)
{
Debug.LogError("TextureBakeResults 资源错误，FixOutOfBoundsUVs is false and a material appears more than once.");
}
MaterialAndUVRect mr = matsAndSrcUVRect[idx];
rectInAtlas = mr.atlasRect;
tilingTreatment = mr.tilingTreatment;
encapsulatingRectOut = mr.GetEncapsulatingRect();
sourceMaterialTilingOut = mr.GetMaterialTilingRect();
return(true);
}
else
{
//todo what if no UVs
//Find UV rect in source mesh
//源网格分析，并缓存
MeshAnalysisResult[] meshAnalysisInfo;
if (!meshAnalysisCache.TryGetValue(sourceMesh.GetInstanceID(), out meshAnalysisInfo))
{
meshAnalysisInfo = new MeshAnalysisResult[sourceMesh.subMeshCount];
for (int j = 0; j < sourceMesh.subMeshCount; j++)
{
Vector2[] uvss = meshChannelCache.GetUv0Raw(sourceMesh);
MeshBakerUtility.hasOutOfBoundsUVs(uvss, sourceMesh, ref meshAnalysisInfo[j], j);
}
meshAnalysisCache.Add(sourceMesh.GetInstanceID(), meshAnalysisInfo);
}
//this could be a mesh that was not used in the texture baking that has huge UV tiling too big for the rect that was baked
//find a record that has an atlas uvRect capable of containing this
//这可能是未在纹理烘焙中使用的网格，该网格的UV贴图对于烘焙的rect而言太大
//找到一条记录，该记录具有能够包含此图集的uvRect
bool found = false;
Rect encapsulatingRect = new Rect(0, 0, 0, 0);
Rect sourceMaterialTiling = new Rect(0, 0, 0, 0);
//Debug.Log(string.Format("尝试在图集中查找能够使用材质{1}保持网格{0}的平铺采样rect的矩形",
// m, sourceMat, meshAnalysisInfo[submeshIdx].uvRect.ToString("f5")));
for (int i = idx; i < matsAndSrcUVRect.Length; i++)
{
MaterialAndUVRect matAndUVrect = matsAndSrcUVRect[i];
if (matAndUVrect.material == sourceMat)
{
if (matAndUVrect.allPropsUseSameTiling)
{
encapsulatingRect = matAndUVrect.allPropsUseSameTiling_samplingEncapsulatinRect;
sourceMaterialTiling = matAndUVrect.allPropsUseSameTiling_sourceMaterialTiling;
}
else
{
encapsulatingRect = matAndUVrect.propsUseDifferntTiling_srcUVsamplingRect;
sourceMaterialTiling = new Rect(0, 0, 1, 1);
}
if (UVRectUtility.IsMeshAndMaterialRectEnclosedByAtlasRect(
matAndUVrect.tilingTreatment,
meshAnalysisInfo[submeshIdx].uvRect,
sourceMaterialTiling,
encapsulatingRect))
{
Debug.Log("在图集中找到" + "ID 为 " + i + "包含" + sourceMesh + " 的 tiled sampling 的 Rect");
idx = i;
found = true;
break;
}
}
}
if (found)
{
MaterialAndUVRect mr = matsAndSrcUVRect[idx];
rectInAtlas = mr.atlasRect;
tilingTreatment = mr.tilingTreatment;
encapsulatingRectOut = mr.GetEncapsulatingRect();
sourceMaterialTilingOut = mr.GetMaterialTilingRect();
return(true);
}
else
{
rectInAtlas = new Rect();
encapsulatingRectOut = new Rect();
sourceMaterialTilingOut = new Rect();
errorMsg = string.Format("Could not find a tiled rectangle in the atlas capable of containing the uv and material tiling on mesh {0} for material {1}. " +
"Was this mesh included when atlases were baked?", sourceMesh.name, sourceMat);
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;
}
public void SetTilingTreatmentAndAdjustEncapsulatingSamplingRect(TextureTilingTreatment newTilingTreatment)
{
tilingTreatment = newTilingTreatment;
pipelineVariation.SetTilingTreatmentAndAdjustEncapsulatingSamplingRect(newTilingTreatment);
}
