//Fills distinctMaterialTextures and usedObjsToMesh
//If allowedMaterialsFilter is empty then all materials on allObjsToMesh will be collected and usedObjsToMesh will be same as allObjsToMesh
//else only materials in allowedMaterialsFilter will be included and usedObjsToMesh will be objs that use those materials.
bool __Step1_CollectDistinctMatTexturesAndUsedObjects(List<GameObject> allObjsToMesh,
List<Material> allowedMaterialsFilter,
List<string> texPropertyNames,
MB2_EditorMethodsInterface textureEditorMethods,
List<MB_TexSet> distinctMaterialTextures, //Will be populated
List<GameObject> usedObjsToMesh) //Will be populated, is a subset of allObjsToMesh
{
// Collect distinct list of textures to combine from the materials on objsToCombine
bool outOfBoundsUVs = false;
for (int i = 0; i < allObjsToMesh.Count; i++){
GameObject obj = allObjsToMesh[i];
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Collecting textures for object " + obj);
if (obj == null){
Debug.LogError("The list of objects to mesh contained nulls.");
return false;
}
Mesh sharedMesh = MB_Utility.GetMesh(obj);
if (sharedMesh == null){
Debug.LogError("Object " + obj.name + " in the list of objects to mesh has no mesh.");
return false;
}
Material[] sharedMaterials = MB_Utility.GetGOMaterials(obj);
if (sharedMaterials == null){
Debug.LogError("Object " + obj.name + " in the list of objects has no materials.");
return false;
}
for(int matIdx = 0; matIdx < sharedMaterials.Length; matIdx++){
Material mat = sharedMaterials[matIdx];
//check if this material is in the list of source materaials
if (allowedMaterialsFilter != null && !allowedMaterialsFilter.Contains(mat)){
continue;
}
Rect uvBounds = new Rect();
bool mcOutOfBoundsUVs = MB_Utility.hasOutOfBoundsUVs(sharedMesh,ref uvBounds,matIdx);
outOfBoundsUVs = outOfBoundsUVs || mcOutOfBoundsUVs;
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.");
return false;
}
if (fixOutOfBoundsUVs){
if (!MB_Utility.validateOBuvsMultiMaterial(sharedMaterials)){
if (LOG_LEVEL >= MB2_LogLevel.warn) Debug.LogWarning("Object " + obj.name + " uses the same material on multiple submeshes. This may generate strange resultAtlasesAndRects especially when used with fix out of bounds uvs. Try duplicating the material.");
}
}
//collect textures scale and offset for each texture in objects material
MeshBakerMaterialTexture[] mts = new MeshBakerMaterialTexture[texPropertyNames.Count];
for (int j = 0; j < texPropertyNames.Count; j++){
Texture2D tx = null;
Vector2 scale = Vector2.one;
Vector2 offset = Vector2.zero;
Vector2 obUVscale = Vector2.one;
Vector2 obUVoffset = Vector2.zero;
if (mat.HasProperty(texPropertyNames[j])){
Texture txx = mat.GetTexture(texPropertyNames[j]);
if (txx != null){
if (txx is Texture2D){
tx = (Texture2D) txx;
TextureFormat f = tx.format;
bool isNormalMap = false;
if (!Application.isPlaying && textureEditorMethods != null) isNormalMap = textureEditorMethods.IsNormalMap(tx);
if ((f == TextureFormat.ARGB32 ||
f == TextureFormat.RGBA32 ||
f == TextureFormat.BGRA32 ||
f == TextureFormat.RGB24 ||
f == TextureFormat.Alpha8) && !isNormalMap) //DXT5 does not work
{
//good
} else {
//TRIED to copy texture using tex2.SetPixels(tex1.GetPixels()) but bug in 3.5 means DTX1 and 5 compressed textures come out skewed
//MB2_Log.Log(MB2_LogLevel.warn,obj.name + " in the list of objects to mesh uses Texture "+tx.name+" uses format " + f + " that is not in: ARGB32, RGBA32, BGRA32, RGB24, Alpha8 or DXT. These formats cannot be resized. MeshBaker will create duplicates.");
//tx = createTextureCopy(tx);
if (!Application.isPlaying){
//Debug.LogWarning("Object " + obj.name + " in the list of objects to mesh uses Texture "+tx.name+" uses format " + f + " that is not in: ARGB32, RGBA32, BGRA32, RGB24, Alpha8 or DXT. These textures cannot be resized. Try changing texture format. If format says 'compressed' try changing it to 'truecolor'");
if (textureEditorMethods != null) textureEditorMethods.AddTextureFormat(tx, isNormalMap);
tx = (Texture2D) mat.GetTexture(texPropertyNames[j]);
} else {
Debug.LogError("Object " + obj.name + " in the list of objects to mesh uses Texture "+tx.name+" uses format " + f + " that is not in: ARGB32, RGBA32, BGRA32, RGB24, Alpha8 or DXT. These textures cannot be resized at runtime. Try changing texture format. If format says 'compressed' try changing it to 'truecolor'" );
return false;
}
}
} else {
Debug.LogError("Object " + obj.name + " in the list of objects to mesh uses a Texture that is not a Texture2D. Cannot build atlases.");
return false;
}
}
offset = mat.GetTextureOffset(texPropertyNames[j]);
scale = mat.GetTextureScale(texPropertyNames[j]);
}
if (tx == null){
if (LOG_LEVEL >= MB2_LogLevel.warn) Debug.LogWarning("No texture selected for " + texPropertyNames[j] + " in object " + allObjsToMesh[i].name + ". A 2x2 clear texture will be generated and used in the atlas.");
}
if (mcOutOfBoundsUVs){
obUVscale = new Vector2(uvBounds.width,uvBounds.height);
obUVoffset = new Vector2(uvBounds.x,uvBounds.y);
}
mts[j] = new MeshBakerMaterialTexture(tx,offset,scale,obUVoffset,obUVscale);
}
//Add to distinct set of textures if not already there
MB_TexSet setOfTexs = new MB_TexSet(mts);
MB_TexSet setOfTexs2 = distinctMaterialTextures.Find(x => x.IsEqual(setOfTexs,fixOutOfBoundsUVs));
if (setOfTexs2 != null){
setOfTexs = setOfTexs2;
} else {
distinctMaterialTextures.Add(setOfTexs);
}
if (!setOfTexs.mats.Contains(mat)){
setOfTexs.mats.Add(mat);
}
if (!setOfTexs.gos.Contains(obj)){
setOfTexs.gos.Add(obj);
if (!usedObjsToMesh.Contains(obj)) usedObjsToMesh.Add(obj);
}
}
}
return true;
}
//Fills distinctMaterialTextures and usedObjsToMesh
//If allowedMaterialsFilter is empty then all materials on allObjsToMesh will be collected and usedObjsToMesh will be same as allObjsToMesh
//else only materials in allowedMaterialsFilter will be included and usedObjsToMesh will be objs that use those materials.
bool __Step1_CollectDistinctMatTexturesAndUsedObjects(List<GameObject> allObjsToMesh,
List<Material> allowedMaterialsFilter,
List<ShaderTextureProperty> texPropertyNames,
MB2_EditorMethodsInterface textureEditorMethods,
List<MB_TexSet> distinctMaterialTextures, //Will be populated
List<GameObject> usedObjsToMesh) //Will be populated, is a subset of allObjsToMesh
{
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
// Collect distinct list of textures to combine from the materials on objsToCombine
bool outOfBoundsUVs = false;
Dictionary<int,MB_Utility.MeshAnalysisResult[]> meshAnalysisResultsCache = new Dictionary<int, MB_Utility.MeshAnalysisResult[]>(); //cache results
for (int i = 0; i < allObjsToMesh.Count; i++){
GameObject obj = allObjsToMesh[i];
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log("Collecting textures for object " + obj);
if (obj == null){
Debug.LogError("The list of objects to mesh contained nulls.");
return false;
}
Mesh sharedMesh = MB_Utility.GetMesh(obj);
if (sharedMesh == null){
Debug.LogError("Object " + obj.name + " in the list of objects to mesh has no mesh.");
return false;
}
Material[] sharedMaterials = MB_Utility.GetGOMaterials(obj);
if (sharedMaterials == null){
Debug.LogError("Object " + obj.name + " in the list of objects has no materials.");
return false;
}
//analyze mesh or grab cached result of previous analysis
MB_Utility.MeshAnalysisResult[] mar;
if (!meshAnalysisResultsCache.TryGetValue(sharedMesh.GetInstanceID(),out mar)){
mar = new MB_Utility.MeshAnalysisResult[sharedMesh.subMeshCount];
for (int j = 0; j < sharedMesh.subMeshCount; j++){
Rect outOfBoundsUVRect = new Rect();
MB_Utility.hasOutOfBoundsUVs(sharedMesh,ref outOfBoundsUVRect,ref mar[j], j);
}
meshAnalysisResultsCache.Add(sharedMesh.GetInstanceID(),mar);
}
for(int matIdx = 0; matIdx < sharedMaterials.Length; matIdx++){
Material mat = sharedMaterials[matIdx];
//check if this material is in the list of source materaials
if (allowedMaterialsFilter != null && !allowedMaterialsFilter.Contains(mat)){
continue;
}
//Rect uvBounds = mar[matIdx].uvRect;
outOfBoundsUVs = outOfBoundsUVs || mar[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.");
return false;
}
if (_fixOutOfBoundsUVs){
if (!MB_Utility.AreAllSharedMaterialsDistinct(sharedMaterials)){
if (LOG_LEVEL >= MB2_LogLevel.warn) Debug.LogWarning("Object " + obj.name + " uses the same material on multiple submeshes. This may generate strange resultAtlasesAndRects especially when used with fix out of bounds uvs. Try duplicating the material.");
}
}
//collect textures scale and offset for each texture in objects material
MeshBakerMaterialTexture[] mts = new MeshBakerMaterialTexture[texPropertyNames.Count];
for (int j = 0; j < texPropertyNames.Count; j++){
Texture2D tx = null;
Vector2 scale = Vector2.one;
Vector2 offset = Vector2.zero;
Vector2 obUVscale = Vector2.one;
Vector2 obUVoffset = Vector2.zero;
Color colorIfNoTexture = Color.clear;
Color tintColor = GetColorIfNoTexture(mat,texPropertyNames[j]);
if (mat.HasProperty(texPropertyNames[j].name)){
Texture txx = mat.GetTexture(texPropertyNames[j].name);
if (txx != null){
if (txx is Texture2D){
tx = (Texture2D) txx;
TextureFormat f = tx.format;
bool isNormalMap = false;
if (!Application.isPlaying && textureEditorMethods != null) isNormalMap = textureEditorMethods.IsNormalMap(tx);
if ((f == TextureFormat.ARGB32 ||
f == TextureFormat.RGBA32 ||
f == TextureFormat.BGRA32 ||
f == TextureFormat.RGB24 ||
f == TextureFormat.Alpha8) && !isNormalMap) //DXT5 does not work
{
//good
} else {
//TRIED to copy texture using tex2.SetPixels(tex1.GetPixels()) but bug in 3.5 means DTX1 and 5 compressed textures come out skewed
//MB2_Log.Log(MB2_LogLevel.warn,obj.name + " in the list of objects to mesh uses Texture "+tx.name+" uses format " + f + " that is not in: ARGB32, RGBA32, BGRA32, RGB24, Alpha8 or DXT. These formats cannot be resized. MeshBaker will create duplicates.");
//tx = createTextureCopy(tx);
if (Application.isPlaying && _packingAlgorithm != MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Fast) {
Debug.LogError("Object " + obj.name + " in the list of objects to mesh uses Texture "+tx.name+" uses format " + f + " that is not in: ARGB32, RGBA32, BGRA32, RGB24, Alpha8 or DXT. These textures cannot be resized at runtime. Try changing texture format. If format says 'compressed' try changing it to 'truecolor'" );
return false;
} else {
//only want to do this if we are saving the atlases to project
if (textureEditorMethods != null &&
(_packingAlgorithm != MB2_PackingAlgorithmEnum.MeshBakerTexturePacker_Fast ||
isNormalMap)){
textureEditorMethods.AddTextureFormat(tx, isNormalMap);
}
tx = (Texture2D) mat.GetTexture(texPropertyNames[j].name);
}
}
} else {
Debug.LogError("Object " + obj.name + " in the list of objects to mesh uses a Texture that is not a Texture2D. Cannot build atlases.");
return false;
}
} else {
//has texture property but no texture try to set a resonable color from the other texture properties
colorIfNoTexture = tintColor;
}
offset = mat.GetTextureOffset(texPropertyNames[j].name);
scale = mat.GetTextureScale(texPropertyNames[j].name);
} else {
colorIfNoTexture = tintColor;
}
if (mar[matIdx].hasOutOfBoundsUVs){
obUVscale = new Vector2(mar[matIdx].uvRect.width,mar[matIdx].uvRect.height);
obUVoffset = new Vector2(mar[matIdx].uvRect.x,mar[matIdx].uvRect.y);
}
mts[j] = new MeshBakerMaterialTexture(tx,offset,scale,obUVoffset,obUVscale,colorIfNoTexture,tintColor);
}
//Add to distinct set of textures if not already there
MB_TexSet setOfTexs = new MB_TexSet(mts);
MB_TexSet setOfTexs2 = distinctMaterialTextures.Find(x => x.IsEqual(setOfTexs,_fixOutOfBoundsUVs));
if (setOfTexs2 != null){
setOfTexs = setOfTexs2;
} else {
distinctMaterialTextures.Add(setOfTexs);
}
if (!setOfTexs.mats.Contains(mat)){
setOfTexs.mats.Add(mat);
}
if (!setOfTexs.gos.Contains(obj)){
setOfTexs.gos.Add(obj);
if (!usedObjsToMesh.Contains(obj)) usedObjsToMesh.Add(obj);
}
}
}
if (LOG_LEVEL >= MB2_LogLevel.debug) Debug.Log ("Total time Step1_CollectDistinctTextures " + (sw.ElapsedMilliseconds).ToString("f5"));
return true;
}