예제 #1
0
        private void AddMetalFlakesGlossiness(MaterialGeneratorContext context)
        {
            var surfaceToEyeDistance = LODDistance.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.GlossinessMap, MaterialKeys.GlossinessValue, Color.White));

            // Metal Flakes Glossiness Feature
            context.UseStream(MaterialShaderStage.Pixel, "matGlossiness");

            var baseGlossinessComputeColorMap = BasePaintGlossinessMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.GlossinessMap, MaterialKeys.GlossinessValue));

            var mixinGlossiness = new ShaderMixinSource();

            // Computes glossiness factor for the metal flakes layer (based on the eye to surface distance and the base glossiness value)
            mixinGlossiness.Mixins.Add(new ShaderClassSource("MaterialSurfaceGlossinessMapMetalFlakes", BasePaintGlossinessInvert));

            mixinGlossiness.AddComposition("glossinessMap", baseGlossinessComputeColorMap);
            mixinGlossiness.AddComposition("surfaceToEyeDistanceFactor", surfaceToEyeDistance);

            context.AddShaderSource(MaterialShaderStage.Pixel, mixinGlossiness);
        }
예제 #2
0
        private void AddMetalFlakesDiffuse(MaterialGeneratorContext context)
        {
            var surfaceToEyeDistance = LODDistance.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.GlossinessMap, MaterialKeys.GlossinessValue, Color.White));

            // Diffuse Feature (interpolated by the 'regular' diffuse map)
            var metalFlakesComputeColorSource = MetalFlakesDiffuseMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.DiffuseMap, MaterialKeys.DiffuseValue, Color.White));

            var mixinDiffuse = new ShaderMixinSource();

            // Diffuse uses a custom shader (to perform the interpolation)
            mixinDiffuse.Mixins.Add(new ShaderClassSource("MaterialSurfaceDiffuseMetalFlakes"));

            mixinDiffuse.AddComposition("diffuseMap", metalFlakesComputeColorSource);
            mixinDiffuse.AddComposition("surfaceToEyeDistanceFactor", surfaceToEyeDistance);

            context.UseStream(MaterialShaderStage.Pixel, MaterialDiffuseMapFeature.DiffuseStream.Stream);
            context.UseStream(MaterialShaderStage.Pixel, MaterialDiffuseMapFeature.ColorBaseStream.Stream);

            context.AddShaderSource(MaterialShaderStage.Pixel, mixinDiffuse);
        }