bool StripUnused(StripVariantsInfo stripInfo /*not null*/, Shader shader, ShaderSnippetData snippetData, ShaderCompilerData compilerData)
{
foreach (string shadername in stripInfo.globalShaderNames)
{
if (StripGlobalShader(shadername, shader))
{
return(true);
}
}
foreach (string keyword in stripInfo.globalKeywords)
{
if (StripGlobalKeywords(keyword, compilerData))
{
return(true);
}
}
if (stripInfo.specifiedShaders != null)
{
foreach (SpecifiedShaderKeyword specifed in stripInfo.specifiedShaders)
{
if (StripSpecifiedKeyward(specifed, shader, compilerData))
{
return(true);
}
}
}
return(false);
}
public void OnProcessShader(Shader shader, ShaderSnippetData snippetData, IList <ShaderCompilerData> compilerDataList)
{
LightweightRenderPipelineAsset lwrpAsset = GraphicsSettings.renderPipelineAsset as LightweightRenderPipelineAsset;
if (lwrpAsset == null || compilerDataList == null || compilerDataList.Count == 0)
{
return;
}
StripVariantsInfo stripInfo = lwrpAsset.stripVariantsInfo;
int prevVariantCount = compilerDataList.Count;
for (int i = 0; i < compilerDataList.Count; ++i)
{
if (stripInfo != null)
{
if (StripUnused(stripInfo, shader, snippetData, compilerDataList[i]))
{
compilerDataList.RemoveAt(i);
--i;
}
}
}
if (lwrpAsset.shaderVariantLogLevel != ShaderVariantLogLevel.Disabled)
{
m_TotalVariantsInputCount += prevVariantCount;
m_TotalVariantsOutputCount += compilerDataList.Count;
if (compilerDataList.Count < prevVariantCount)
{
LogShaderVariants(shader, snippetData, lwrpAsset.shaderVariantLogLevel, prevVariantCount, compilerDataList.Count);
}
}
}