public override void VisitFeature(MaterialGeneratorContext context)
{
if (MetalnessMap != null)
{
var computeColorSource = MetalnessMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.MetalnessMap, MaterialKeys.MetalnessValue));
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("MaterialSurfaceMetalness"));
mixin.AddComposition("metalnessMap", computeColorSource);
context.UseStream(MaterialShaderStage.Pixel, "matSpecular");
context.AddShaderSource(MaterialShaderStage.Pixel, mixin);
}
}
public override void VisitFeature(MaterialGeneratorContext context)
{
if (DiffuseMap != null)
{
var computeColorSource = DiffuseMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.DiffuseMap, MaterialKeys.DiffuseValue, Color.White));
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("MaterialSurfaceDiffuse"));
mixin.AddComposition("diffuseMap", computeColorSource);
context.UseStream(MaterialShaderStage.Pixel, DiffuseStream.Stream);
context.UseStream(MaterialShaderStage.Pixel, ColorBaseStream.Stream);
context.AddShaderSource(MaterialShaderStage.Pixel, mixin);
}
}
public override void GenerateShader(MaterialGeneratorContext context)
{
if (GlossinessMap != null)
{
GlossinessMap.ClampFloat(0, 1);
context.UseStream(MaterialShaderStage.Pixel, GlossinessStream.Stream);
var computeColorSource = GlossinessMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.GlossinessMap, MaterialKeys.GlossinessValue));
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("MaterialSurfaceGlossinessMap", Invert));
mixin.AddComposition("glossinessMap", computeColorSource);
context.AddShaderSource(MaterialShaderStage.Pixel, mixin);
}
}
public override void GenerateShader(MaterialGeneratorContext context)
{
if (NormalMap != null)
{
// Inform the context that we are using matNormal (from the MaterialSurfaceNormalMap shader)
context.UseStreamWithCustomBlend(MaterialShaderStage.Pixel, NormalStream.Stream, new ShaderClassSource("MaterialStreamNormalBlend"));
context.Parameters.Set(MaterialKeys.HasNormalMap, true);
var normalMap = NormalMap;
// Workaround to make sure that normal map are setup
var computeTextureColor = normalMap as ComputeTextureColor;
if (computeTextureColor != null)
{
if (computeTextureColor.FallbackValue.Value == Color.White)
{
computeTextureColor.FallbackValue.Value = DefaultNormalColor;
}
}
else
{
var computeColor = normalMap as ComputeColor;
if (computeColor != null)
{
if (computeColor.Value == Color.Black || computeColor.Value == Color.White)
{
computeColor.Value = DefaultNormalColor;
}
}
else
{
var computeFloat4 = normalMap as ComputeFloat4;
if (computeFloat4 != null)
{
if (computeFloat4.Value == Vector4.Zero)
{
computeFloat4.Value = DefaultNormalColor.ToVector4();
}
}
}
}
var computeColorSource = NormalMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.NormalMap, MaterialKeys.NormalValue, DefaultNormalColor, false));
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("MaterialSurfaceNormalMap", IsXYNormal, ScaleAndBias));
mixin.AddComposition("normalMap", computeColorSource);
context.AddShaderSource(MaterialShaderStage.Pixel, mixin);
}
}
private void AddClearCoatNormalMap(MaterialGeneratorContext context)
{
var computeColorKeys = new MaterialComputeColorKeys(MaterialKeys.NormalMap, MaterialKeys.NormalValue, MaterialNormalMapFeature.DefaultNormalColor, false);
var computeColorSource = OrangePeelNormalMap.GenerateShaderSource(context, computeColorKeys);
// Orange Peel Normal Map
var mixinNormalMap = new ShaderMixinSource();
// Inform the context that we are using matNormal (from the MaterialSurfaceNormalMap shader)
context.UseStreamWithCustomBlend(MaterialShaderStage.Pixel, "matNormal", new ShaderClassSource("MaterialStreamNormalBlend"));
context.Parameters.Set(MaterialKeys.HasNormalMap, true);
mixinNormalMap.Mixins.Add(new ShaderClassSource("MaterialSurfaceNormalMap", OrangePeelIsXYNormal, OrangePeelScaleAndBias));
mixinNormalMap.AddComposition("normalMap", computeColorSource);
context.AddShaderSource(MaterialShaderStage.Pixel, mixinNormalMap);
}
public override void GenerateShader(MaterialGeneratorContext context)
{
if (DiffuseMap != null)
{
Vector4 diffuseMin = Vector4.Zero;
Vector4 diffuseMax = Vector4.One;
DiffuseMap.ClampFloat4(ref diffuseMin, ref diffuseMax);
var computeColorSource = DiffuseMap.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.DiffuseMap, MaterialKeys.DiffuseValue, Color.White));
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("MaterialSurfaceDiffuse"));
mixin.AddComposition("diffuseMap", computeColorSource);
context.UseStream(MaterialShaderStage.Pixel, DiffuseStream.Stream);
context.UseStream(MaterialShaderStage.Pixel, ColorBaseStream.Stream);
context.AddShaderSource(MaterialShaderStage.Pixel, mixin);
}
}
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);
}
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);
}
private void AddDiffuseSpecularAlphaBlendColor(MaterialShaderStage stage, MaterialGeneratorContext context)
{
context.AddShaderSource(MaterialShaderStage.Pixel, new ShaderClassSource("MaterialSurfaceDiffuseSpecularAlphaBlendColor"));
}
private void AddDiscardFromLuminance(MaterialShaderStage stage, MaterialGeneratorContext context)
{
context.AddShaderSource(MaterialShaderStage.Pixel, new ShaderClassSource("MaterialSurfaceTransparentAlphaDiscard"));
}
private void AddMaterialSurfaceTransmittanceShading(MaterialShaderStage stage, MaterialGeneratorContext context)
{
context.AddShaderSource(stage, new ShaderClassSource("MaterialSurfaceTransmittanceShading"));
}
