//float _maxTimePerFrameForCoroutine;
public IEnumerator CombineTexturesIntoAtlasesCoroutine(ProgressUpdateDelegate progressInfo,
AtlasesAndRects resultAtlasesAndRects,
Material resultMaterial,
List <GameObject> objsToMesh,
List <Material> allowedMaterialsFilter,
EditorMethodsInterface textureEditorMethods = null,
CombineTexturesIntoAtlasesCoroutineResult coroutineResult = null,
float maxTimePerFrame = .01f,
List <AtlasPackingResult> packingResults = null,
bool onlyPackRects = false,
bool splitAtlasWhenPackingIfTooBig = false)
{
coroutineResult.success = true;
coroutineResult.isFinished = false;
if (maxTimePerFrame <= 0f)
{
Debug.LogError("maxTimePerFrame must be a value greater than zero");
coroutineResult.isFinished = true;
yield break;
}
//_maxTimePerFrameForCoroutine = maxTimePerFrame;
yield return(_CombineTexturesIntoAtlases(progressInfo,
coroutineResult,
resultAtlasesAndRects,
resultMaterial,
objsToMesh,
allowedMaterialsFilter,
textureEditorMethods,
packingResults,
onlyPackRects,
splitAtlasWhenPackingIfTooBig));
coroutineResult.isFinished = true;
yield break;
}
/// <summary>
/// 合并贴图形成纹理图集
/// </summary>
public bool CombineTexturesIntoAtlases(ProgressUpdateDelegate progressInfo,
AtlasesAndRects resultAtlasesAndRects,
Material resultMaterial,
List <GameObject> objsToMesh,
List <Material> allowedMaterialsFilter,
EditorMethodsInterface textureEditorMethods = null,
List <AtlasPackingResult> packingResults = null,
bool onlyPackRects = false,
bool splitAtlasWhenPackingIfTooBig = false)
{
CombineTexturesIntoAtlasesCoroutineResult result = new CombineTexturesIntoAtlasesCoroutineResult();
RunCorutineWithoutPause(
_CombineTexturesIntoAtlases(
progressInfo,
result,
resultAtlasesAndRects,
resultMaterial,
objsToMesh,
allowedMaterialsFilter,
textureEditorMethods,
packingResults,
onlyPackRects,
splitAtlasWhenPackingIfTooBig
),
0);
if (result.success == false)
{
Debug.LogError("Failed to generate atlases.");
}
return(result.success);
}
// texPropertyNames 是 resultMaterial中纹理属性的列表
// allowedMaterialsFilter 是材料列表。 没有这些材料的物体将被忽略。这由多种材质过滤器使用
// textureEditorMethods 仅封装编辑器功能，例如保存资产和跟踪纹理资产谁的格式已更改。 如果在运行时使用，则为null。
IEnumerator __CombineTexturesIntoAtlases(ProgressUpdateDelegate progressInfo,
CombineTexturesIntoAtlasesCoroutineResult result,
AtlasesAndRects resultAtlasesAndRects,
TexturePipelineData data,
bool splitAtlasWhenPackingIfTooBig,
EditorMethodsInterface textureEditorMethods)
{
if (progressInfo != null)
{
progressInfo("Collecting textures ", .01f);
}
// --- 1、记录各合并物体的源材质的 Prop Texture 信息写入 Data.distinctMaterialTextures
//每个图集（主图，凹凸等）都将有的 MaterialTextures.Count 个图像。
//每个 distinctMaterialTextures 对应一个游戏物体的某个材质，记录一组纹理，分别材质的在每个Prop图集一个。
List <GameObject> usedObjsToMesh = new List <GameObject>();
yield return(TextureCombinerPipeline.__Step1_CollectDistinctMatTexturesAndUsedObjects(progressInfo, result, data, textureEditorMethods, usedObjsToMesh));
if (!result.success)
{
yield break;
}
// --- 2、计算使每个材质属性中的多个材质的合理尺寸
yield return(TextureCombinerPipeline._Step2_CalculateIdealSizesForTexturesInAtlasAndPadding(progressInfo, result, data, textureEditorMethods));
if (!result.success)
{
yield break;
}
// --- 3、创建特定打包方式的打包器
ITextureCombinerPacker texturePaker = TextureCombinerPipeline.CreatePacker(data.IsOnlyOneTextureInAtlasReuseTextures(), data._packingAlgorithm);
yield return(texturePaker.ConvertTexturesToReadableFormats(progressInfo, result, data, this, textureEditorMethods));
if (!result.success)
{
yield break;
}
// --- 4、计算各源材质在合并材质 Atlas 的排布
AtlasPackingResult[] uvRects = texturePaker.CalculateAtlasRectangles(data, splitAtlasWhenPackingIfTooBig);
// --- 5、创建 Atlas 并保存
yield return(TextureCombinerPipeline.__Step3_BuildAndSaveAtlasesAndStoreResults(progressInfo,
result,
data,
this,
texturePaker,
uvRects[0],
textureEditorMethods,
resultAtlasesAndRects));
}
/// <summary>
/// Creates the atlases.创建图集
/// saveAtlasesAsAssets 创建图集并保存至项目资源目录，或者内存中
/// editorMethods 贴图格式编辑器方法
/// </summary>
public AtlasesAndRects[] CreateAtlases(ProgressUpdateDelegate progressInfo,
bool saveAtlasesAsAssets = false,
EditorMethodsInterface editorMethods = null)
{
AtlasesAndRects[] resultAtlasesAndRects = null;
try
{
_coroutineResult = new CreateAtlasesCoroutineResult();
TextureCombineHandler.RunCorutineWithoutPause(
CreateAtlasesCoroutine(progressInfo, _coroutineResult, saveAtlasesAsAssets, editorMethods, 1000f), 0);
if (_coroutineResult.success && textureBakeResults != null)
{
resultAtlasesAndRects = this.OnCombinedTexturesCoroutineAtlasesAndRects;
}
}
catch (Exception e)
{
Debug.LogError(e);
}
finally
{
if (saveAtlasesAsAssets)
{ //Atlases were saved to project so we don't need these ones
if (resultAtlasesAndRects != null)
{
for (int j = 0; j < resultAtlasesAndRects.Length; j++)
{
AtlasesAndRects mAndA = resultAtlasesAndRects[j];
if (mAndA != null && mAndA.atlases != null)
{
for (int i = 0; i < mAndA.atlases.Length; i++)
{
if (mAndA.atlases[i] != null)
{
if (editorMethods != null)
{
editorMethods.Destroy(mAndA.atlases[i]);
}
else
{
MeshBakerUtility.Destroy(mAndA.atlases[i]);
}
}
}
}
}
}
}
}
return(resultAtlasesAndRects);
}
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();
}
IEnumerator _CombineTexturesIntoAtlases(ProgressUpdateDelegate progressInfo,
CombineTexturesIntoAtlasesCoroutineResult result,
AtlasesAndRects resultAtlasesAndRects,
Material resultMaterial,
List <GameObject> objsToMesh,
List <Material> allowedMaterialsFilter,
EditorMethodsInterface textureEditorMethods,
List <AtlasPackingResult> atlasPackingResult,
bool onlyPackRects,
bool splitAtlasWhenPackingIfTooBig)
{
try
{
_temporaryTextures.Clear();
MaterialPropTexture.readyToBuildAtlases = false;
// ---- 0.合并材质前回调
if (textureEditorMethods != null)
{
textureEditorMethods.Clear();
textureEditorMethods.OnPreTextureBake();
}
// ---- 1.合并材质参数校验
if (objsToMesh == null || objsToMesh.Count == 0)
{
Debug.LogError("没有游戏物体参与合并");
result.success = false;
yield break;
}
if (_atlasPadding < 0)
{
Debug.LogError("Atlas padding 必须大于等于零");
result.success = false;
yield break;
}
if (_maxTilingBakeSize < 2 || _maxTilingBakeSize > 4096)
{
Debug.LogError("无效Tilling尺寸的值Invalid value for max tiling bake size.");
result.success = false;
yield break;
}
for (int i = 0; i < objsToMesh.Count; i++)
{
Material[] ms = MeshBakerUtility.GetGOMaterials(objsToMesh[i]);
for (int j = 0; j < ms.Length; j++)
{
Material m = ms[j];
if (m == null)
{
Debug.LogError("游戏物体" + objsToMesh[i] + " 材质为空 ");
result.success = false;
yield break;
}
}
}
if (_fixOutOfBoundsUVs && (_packingAlgorithm == PackingAlgorithmEnum.MeshBakerTexturePacker_Horizontal ||
_packingAlgorithm == PackingAlgorithmEnum.MeshBakerTexturePacker_Vertical))
{
Debug.LogWarning("合并算法为 MeshBakerTexturePacker_Horizontal 或 MeshBakerTexturePacker_Vertical，建议不打开 Consider Mesh UVs 选项");
}
if (progressInfo != null)
{
progressInfo("Collecting textures for " + objsToMesh.Count + " meshes.", .01f);
}
// ---- 2.创建材质合并管线数据
TexturePipelineData data = CreatePipelineData(resultMaterial,
new List <ShaderTextureProperty>(),
objsToMesh,
allowedMaterialsFilter,
new List <MaterialPropTexturesSet>());
// ---- 3.将材质的 shader 各参数信息写入管线数据中
if (!TextureCombinerPipeline._CollectPropertyNames(data))
{
result.success = false;
yield break;
}
// ---- 4.加载 Texture 混合器
data.nonTexturePropertyBlender.LoadTextureBlendersIfNeeded(data.resultMaterial);
// ---- 5.选择本地合并，或运行时合并
if (onlyPackRects)
{
yield return(__RunTexturePackerOnly(result, data, splitAtlasWhenPackingIfTooBig, textureEditorMethods, atlasPackingResult));
}
else
{
yield return(__CombineTexturesIntoAtlases(progressInfo, result, resultAtlasesAndRects, data, splitAtlasWhenPackingIfTooBig, textureEditorMethods));
}
}
finally
{
// ---- 6.删除缓存，合并材质完成回调
_destroyAllTemporaryTextures();
if (textureEditorMethods != null)
{
textureEditorMethods.RestoreReadFlagsAndFormats(progressInfo);
textureEditorMethods.OnPostTextureBake();
}
}
}
/// <summary>
/// Texture 合并管线第 3 步，创建 Atlas 并保存资源
/// </summary>
/// <returns></returns>
internal static IEnumerator __Step3_BuildAndSaveAtlasesAndStoreResults(ProgressUpdateDelegate progressInfo,
CombineTexturesIntoAtlasesCoroutineResult result,
TexturePipelineData data,
TextureCombineHandler combiner,
ITextureCombinerPacker packer,
AtlasPackingResult atlasPackingResult,
EditorMethodsInterface textureEditorMethods,
AtlasesAndRects resultAtlasesAndRects)
{
//run the garbage collector to free up as much memory as possible before bake to reduce MissingReferenceException problems
GC.Collect();
Texture2D[] atlases = new Texture2D[data.numAtlases];
//StringBuilder report = GenerateReport(data);
//创建图集
yield return(packer.CreateAtlases(progressInfo, data, combiner, atlasPackingResult, atlases, textureEditorMethods));
data.nonTexturePropertyBlender.AdjustNonTextureProperties(data.resultMaterial, data.texPropertyNames, data.distinctMaterialTextures, textureEditorMethods);
if (data.distinctMaterialTextures.Count > 0)
{
data.distinctMaterialTextures[0].AdjustResultMaterialNonTextureProperties(data.resultMaterial, data.texPropertyNames);
}
//结果报告
//if (progressInfo != null)
// progressInfo("Building Report", .7f);
////report on atlases created
//StringBuilder atlasMessage = new StringBuilder();
//atlasMessage.AppendLine("---- Atlases ------");
//for (int i = 0; i < data.numAtlases; i++)
//{
// if (atlases[i] != null)
// {
// atlasMessage.AppendLine("Created Atlas For: " + data.texPropertyNames[i].name + " h=" + atlases[i].height + " w=" + atlases[i].width);
// }
// else if (!_ShouldWeCreateAtlasForThisProperty(i, data._considerNonTextureProperties, data.allTexturesAreNullAndSameColor))
// {
// atlasMessage.AppendLine("Did not create atlas for " + data.texPropertyNames[i].name + " because all source textures were null.");
// }
//}
//report.Append(atlasMessage.ToString());
List <MaterialAndUVRect> mat2rect_map = new List <MaterialAndUVRect>();
for (int i = 0; i < data.distinctMaterialTextures.Count; i++)
{
MaterialPropTexturesSet texSet = data.distinctMaterialTextures[i];
List <MatAndTransformToMerged> mats = texSet.matsAndGOs.mats;
Rect allPropsUseSameTiling_encapsulatingSamplingRect;
Rect propsUseDifferntTiling_obUVRect;
texSet.GetRectsForTextureBakeResults(out allPropsUseSameTiling_encapsulatingSamplingRect, out propsUseDifferntTiling_obUVRect);
for (int j = 0; j < mats.Count; j++)
{
Rect allPropsUseSameTiling_sourceMaterialTiling = texSet.GetMaterialTilingRectForTextureBakerResults(j);
MaterialAndUVRect key = new MaterialAndUVRect(
mats[j].mat,
atlasPackingResult.rects[i],
texSet.allTexturesUseSameMatTiling,
allPropsUseSameTiling_sourceMaterialTiling,
allPropsUseSameTiling_encapsulatingSamplingRect,
propsUseDifferntTiling_obUVRect,
texSet.tilingTreatment,
mats[j].objName);
if (!mat2rect_map.Contains(key))
{
mat2rect_map.Add(key);
}
}
}
resultAtlasesAndRects.atlases = atlases; // one per texture on result shader
resultAtlasesAndRects.texPropertyNames = ShaderTextureProperty.GetNames(data.texPropertyNames); // one per texture on source shader
resultAtlasesAndRects.originMatToRect_map = mat2rect_map;
if (progressInfo != null)
{
progressInfo("Restoring Texture Formats & Read Flags", .8f);
}
combiner._destroyAllTemporaryTextures();
if (textureEditorMethods != null)
{
textureEditorMethods.RestoreReadFlagsAndFormats(progressInfo);
}
//if (report != null)
// Debug.Log(report.ToString());
yield break;
}
/// <summary>
/// 创建贴图 Atlas 协程
/// </summary>
/// <returns></returns>
public IEnumerator CreateAtlasesCoroutine(ProgressUpdateDelegate progressInfo,
CreateAtlasesCoroutineResult coroutineResult,
bool saveAtlasesAsAssets = false,
EditorMethodsInterface editorMethods = null,
float maxTimePerFrame = .01f)
{
OnCombinedTexturesCoroutineAtlasesAndRects = null;
//--- 1、合并前检测
if (maxTimePerFrame <= 0f)
{
Debug.LogError("maxTimePerFrame must be a value greater than zero");
coroutineResult.isFinished = true;
yield break;
}
//验证等级
ValidationLevel vl = Application.isPlaying ? ValidationLevel.quick : ValidationLevel.robust;
//验证
if (!DoCombinedValidate(this, ObjsToCombineTypes.dontCare, null, vl))
{
coroutineResult.isFinished = true;
yield break;
}
//合并为多材质验证
if (_doMultiMaterial && !_ValidateResultMaterials())
{
coroutineResult.isFinished = true;
yield break;
}
else if (!_doMultiMaterial)
{
//合并为单独材质
if (_resultMaterial == null)
{
Debug.LogError("Combined Material is null please create and assign a result material.");
coroutineResult.isFinished = true;
yield break;
}
Shader targShader = _resultMaterial.shader;
for (int i = 0; i < objsToMesh.Count; i++)
{
Material[] ms = MeshBakerUtility.GetGOMaterials(objsToMesh[i]);
for (int j = 0; j < ms.Length; j++)
{
Material m = ms[j];
if (m != null && m.shader != targShader)
{
Debug.LogWarning("游戏物体" + objsToMesh[i] + " 没有使用 shader " + targShader +
" it may not have the required textures. " +
"If not small solid color textures will be generated.");
}
}
}
}
TextureCombineHandler combiner = CreateAndConfigureTextureCombiner();
combiner.saveAtlasesAsAssets = saveAtlasesAsAssets;
////--- 2、初始化存储合并结果的数据结构
int numResults = 1;
if (_doMultiMaterial)
{
numResults = resultMaterials.Length;
}
OnCombinedTexturesCoroutineAtlasesAndRects = new AtlasesAndRects[numResults];
for (int i = 0; i < OnCombinedTexturesCoroutineAtlasesAndRects.Length; i++)
{
OnCombinedTexturesCoroutineAtlasesAndRects[i] = new AtlasesAndRects();
}
//--- 3、开始合并材质（单个，多个）
for (int i = 0; i < OnCombinedTexturesCoroutineAtlasesAndRects.Length; i++)
{
Material resMatToPass;
List <Material> sourceMats;
if (_doMultiMaterial)
{
sourceMats = resultMaterials[i].sourceMaterials;
resMatToPass = resultMaterials[i].combinedMaterial;
combiner.fixOutOfBoundsUVs = resultMaterials[i].considerMeshUVs;
}
else
{
resMatToPass = _resultMaterial;
sourceMats = null;
}
//TextureHandler 材质合并协程结果
CombineTexturesIntoAtlasesCoroutineResult coroutineResult2 = new CombineTexturesIntoAtlasesCoroutineResult();
yield return(combiner.CombineTexturesIntoAtlasesCoroutine(progressInfo,
OnCombinedTexturesCoroutineAtlasesAndRects[i],
resMatToPass,
objsToMesh,
sourceMats,
editorMethods,
coroutineResult2,
maxTimePerFrame));
coroutineResult.success = coroutineResult2.success;
if (!coroutineResult.success)
{
coroutineResult.isFinished = true;
yield break;
}
}
//--- 4、TextureBakeResults 保存合并结果
unpackMat2RectMap(textureBakeResults);
textureBakeResults.doMultiMaterial = _doMultiMaterial;
if (_doMultiMaterial)
{
textureBakeResults.resultMaterials = resultMaterials;
}
else
{
MultiMaterial[] resMats = new MultiMaterial[1];
resMats[0] = new MultiMaterial();
resMats[0].combinedMaterial = _resultMaterial;
resMats[0].considerMeshUVs = _fixOutOfBoundsUVs;
resMats[0].sourceMaterials = new List <Material>();
for (int i = 0; i < textureBakeResults.materialsAndUVRects.Length; i++)
{
resMats[0].sourceMaterials.Add(textureBakeResults.materialsAndUVRects[i].material);
}
textureBakeResults.resultMaterials = resMats;
}
//--- 5、传递合并结果到 MeshCombiner
MeshBakerCommon[] mb = GetComponentsInChildren <MeshBakerCommon>();
for (int i = 0; i < mb.Length; i++)
{
mb[i].textureBakeResults = textureBakeResults;
}
coroutineResult.isFinished = true;
//--- 6、合并材质结束回调
if (coroutineResult.success && onBuiltAtlasesSuccess != null)
{
onBuiltAtlasesSuccess();
}
if (!coroutineResult.success && onBuiltAtlasesFail != null)
{
onBuiltAtlasesFail();
}
}