public override bool Prepare(DeviceContextHolder contextHolder, SpecialRenderMode mode) {
if (mode != SpecialRenderMode.SimpleTransparent && mode != SpecialRenderMode.Simple && mode != SpecialRenderMode.Outline) return false;
Effect.FxMaterial.Set(_material);
Effect.FxDiffuseMap.SetResource(_txDiffuse);
PrepareStates(contextHolder, mode);
return true;
}