private static void OverlayBlitImpl(Texture source, RenderTexture dest, Material mat, int pass, KoiSkinOverlayController overlayController, TexType overlayType)
{
var trt = RenderTexture.GetTemporary(source.width, source.height, dest.depth, dest.format);
Graphics.Blit(source, trt);
overlayController.ApplyOverlayToRT(trt, overlayType);
Graphics.Blit(trt, dest, mat, pass);
RenderTexture.ReleaseTemporary(trt);
}
