private Material CreateAtlasMaterialAndTexture(string shaderToAtlas, int shaderIndex, TextureReuseManager textureReuseManager)
{
string fileName = ((ObjectsGUI.CustomAtlasName == "") ? "Atlas " : (ObjectsGUI.CustomAtlasName + " ")) + shaderToAtlas.Replace('/', '_');
string folderToSaveAssets = EditorApplication.currentScene;
if (folderToSaveAssets == "") //scene is not saved yet.
{
folderToSaveAssets = Constants.NonSavedSceneFolderName + ".unity";
Debug.LogWarning("WARNING: Scene has not been saved, saving baked objects to: " + Constants.NonSavedSceneFolderName + " folder");
}
folderToSaveAssets = folderToSaveAssets.Substring(0, folderToSaveAssets.Length - 6) + "-Atlas"; //remove the ".unity" and add "-Atlas"
if (!Directory.Exists(folderToSaveAssets))
{
Directory.CreateDirectory(folderToSaveAssets);
AssetDatabase.ImportAsset(folderToSaveAssets);
}
string atlasTexturePath = folderToSaveAssets + Path.DirectorySeparatorChar + fileName;
//create the material in the project and set the shader material to shaderToAtlas
Material atlasMaterial = new Material(Shader.Find(shaderToAtlas));
//save the material to the project view
AssetDatabase.CreateAsset(atlasMaterial, atlasTexturePath + "Mat.mat");
AssetDatabase.ImportAsset(atlasTexturePath + "Mat.mat");
//load a reference from the project view to the material (this is done to be able to set the texture to the material in the project view)
atlasMaterial = (Material)AssetDatabase.LoadAssetAtPath(atlasTexturePath + "Mat.mat", typeof(Material));
List <string> shaderDefines = ShaderManager.Instance.GetShaderTexturesDefines(shaderToAtlas);
for (int k = 0; k < shaderDefines.Count; k++) //go trough each property of the shader.
{
List <Texture2D> texturesOfShader = ObjSorter.GetTexturesToAtlasForShaderDefine(shaderIndex, shaderDefines[k]); //Get thtextures for the property shderDefines[k] to atlas them
List <Vector2> scales = ObjSorter.GetScalesToAtlasForShaderDefine(shaderIndex, shaderDefines[k]);
List <Vector2> offsets = ObjSorter.GetOffsetsToAtlasForShaderDefine(shaderIndex, shaderDefines[k]);
if (AdvancedMenuGUI.Instance.ReuseTextures)
{
texturesOfShader = Utils.FilterTexsByIndex(texturesOfShader, textureReuseManager.GetTextureIndexes());
scales = Utils.FilterVec2ByIndex(scales, textureReuseManager.GetTextureIndexes());
offsets = Utils.FilterVec2ByIndex(offsets, textureReuseManager.GetTextureIndexes());
}
generatedAtlas.SaveAtlasToFile(atlasTexturePath + k.ToString() + ".png", texturesOfShader, scales, offsets); //save the atlas with the retrieved textures
AssetDatabase.ImportAsset(atlasTexturePath + k.ToString() + ".png");
Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(atlasTexturePath + k.ToString() + ".png", typeof(Texture2D));
atlasMaterial.SetTexture(shaderDefines[k], //set property shderDefines[k] for shader shaderToAtlas
tex);
}
return(atlasMaterial);
}