//namespace UnityEngine.PostProcessing
//{
//    public sealed class VignetteComponent : PostProcessingComponentRenderTexture<VignetteModel>
//    {
//        static class Uniforms
//        {
//            internal static readonly int _Vignette_Color    = Shader.PropertyToID("_Vignette_Color");
//            internal static readonly int _Vignette_Center   = Shader.PropertyToID("_Vignette_Center");
//            internal static readonly int _Vignette_Settings = Shader.PropertyToID("_Vignette_Settings");
//            internal static readonly int _Vignette_Mask     = Shader.PropertyToID("_Vignette_Mask");
//            internal static readonly int _Vignette_Opacity  = Shader.PropertyToID("_Vignette_Opacity");
//        }

//        public override bool active
//        {
//            get
//            {
//                return model.enabled
//                       && !context.interrupted;
//            }
//        }

//        public override void Prepare(Material uberMaterial)
//        {
//            var settings = model.settings;
//            uberMaterial.SetColor(Uniforms._Vignette_Color, settings.color);

//            if (settings.mode == VignetteModel.Mode.Classic)
//            {
//                uberMaterial.SetVector(Uniforms._Vignette_Center, settings.center);
//                uberMaterial.EnableKeyword("VIGNETTE_CLASSIC");
//                float roundness = (1f - settings.roundness) * 6f + settings.roundness;
//                uberMaterial.SetVector(Uniforms._Vignette_Settings, new Vector3(settings.intensity * 3f, settings.smoothness * 5f, roundness));
//            }
//            else if (settings.mode == VignetteModel.Mode.Round)
//            {
//                uberMaterial.SetVector(Uniforms._Vignette_Center, settings.center);
//                uberMaterial.EnableKeyword("VIGNETTE_ROUND");
//                uberMaterial.SetVector(Uniforms._Vignette_Settings, new Vector3(settings.intensity * 3f, settings.smoothness * 5f, 1f));
//            }
//            else if (settings.mode == VignetteModel.Mode.Masked)
//            {
//                if (settings.mask != null && settings.opacity > 0f)
//                {
//                    uberMaterial.EnableKeyword("VIGNETTE_MASKED");
//                    uberMaterial.SetTexture(Uniforms._Vignette_Mask, settings.mask);
//                    uberMaterial.SetFloat(Uniforms._Vignette_Opacity, settings.opacity);
//                }
//            }
//        }
//    }
//}