public void Process(AssetImporter importer, TextWriter writer)
{
if (Path.GetExtension(importer.assetPath) != ".mat")
{
return;
}
var material = AssetDatabase.LoadAssetAtPath <Material>(importer.assetPath);
if (!material)
{
Debug.LogError($"Load material fail : {importer.assetPath}");
return;
}
var shader = material.shader;
var shaderPath = AssetDatabase.GetAssetPath(shader);
if (shaderPath.StartsWith("Packages"))
{
writer.WriteLine($"Material : {importer.assetPath} using in packages shader : {shaderPath}");
}
var materialKeywords = material.shaderKeywords;
if (ShaderPreprocessor.AddInUsedShaderKeywords(shader, materialKeywords) &&
m_shaderToGlobalKeywords.TryGetValue(shader, out var localGlobal))
{
List <string> filteredKeywords = new List <string>(materialKeywords);
for (int i = filteredKeywords.Count - 1; i >= 0; i--)
{
if (Array.IndexOf(localGlobal.Item2, filteredKeywords[i]) == -1)
{
filteredKeywords.RemoveAt(i);
}
}
foreach (var keyword in localGlobal.Item1)
{
string[] keywords = new string[filteredKeywords.Count + 1];
filteredKeywords.CopyTo(0, keywords, 0, filteredKeywords.Count);
keywords[filteredKeywords.Count] = keyword;
m_collection.Add(new ShaderVariantCollection.ShaderVariant(shader, PassType.ScriptableRenderPipeline, keywords));
}
m_collection.Add(new ShaderVariantCollection.ShaderVariant(shader, PassType.ScriptableRenderPipeline, filteredKeywords.ToArray()));
}
}
public void Clear()
{
ShaderPreprocessor.Clear();
}
