public override void GenerateShader(MaterialGeneratorContext context)
{
var alpha = Alpha ?? new ComputeFloat(1f);
var tint = Tint ?? new ComputeColor(Color.White);
alpha.ClampFloat(0, 1);
// Use pre-multiplied alpha to support both additive and alpha blending
if (context.MaterialPass.BlendState is null)
{
context.MaterialPass.BlendState = BlendStates.AlphaBlend;
}
context.MaterialPass.HasTransparency = true;
// Disable alpha-to-coverage. We wanna do alpha blending, not alpha testing
context.MaterialPass.AlphaToCoverage = false;
// TODO: GRAPHICS REFACTOR
//context.Parameters.SetResourceSlow(Effect.BlendStateKey, BlendState.NewFake(blendDesc));
context.SetStream(AlphaBlendStream.Stream, alpha, MaterialKeys.DiffuseSpecularAlphaBlendMap, MaterialKeys.DiffuseSpecularAlphaBlendValue, Color.White);
context.SetStream(AlphaBlendColorStream.Stream, tint, MaterialKeys.AlphaBlendColorMap, MaterialKeys.AlphaBlendColorValue, Color.White);
context.MaterialPass.Parameters.Set(MaterialKeys.UsePixelShaderWithDepthPass, true);
if (!context.Tags.Get(HasFinalCallback))
{
context.Tags.Set(HasFinalCallback, true);
context.AddFinalCallback(MaterialShaderStage.Pixel, AddDiffuseSpecularAlphaBlendColor, ShadingColorAlphaFinalCallbackOrder);
}
}
public override void GenerateShader(MaterialGeneratorContext context)
{
Intensity.ClampFloat(0, 1);
context.SetStream(SpecularStream.Stream, SpecularMap, MaterialKeys.SpecularMap, MaterialKeys.SpecularValue);
context.SetStream("matSpecularIntensity", Intensity, null, MaterialKeys.SpecularIntensityValue);
}
public override void GenerateShader(MaterialGeneratorContext context)
{
var alpha = Alpha ?? new ComputeFloat(0.5f);
var tint = Tint ?? new ComputeColor(Color.White);
alpha.ClampFloat(0, 1);
// Use pre-multiplied alpha to support both additive and alpha blending
if (context.MaterialPass.BlendState == null)
{
context.MaterialPass.BlendState = BlendStates.AlphaBlend;
}
context.MaterialPass.HasTransparency = true;
// TODO GRAPHICS REFACTOR
//context.Parameters.SetResourceSlow(Effect.BlendStateKey, BlendState.NewFake(blendDesc));
var alphaColor = alpha.GenerateShaderSource(context, new MaterialComputeColorKeys(MaterialKeys.DiffuseSpecularAlphaBlendMap, MaterialKeys.DiffuseSpecularAlphaBlendValue, Color.White));
var mixin = new ShaderMixinSource();
mixin.Mixins.Add(new ShaderClassSource("ComputeColorMaterialAlphaBlend"));
mixin.AddComposition("color", alphaColor);
context.SetStream(MaterialShaderStage.Pixel, AlphaBlendStream.Stream, MaterialStreamType.Float2, mixin);
context.SetStream(AlphaBlendColorStream.Stream, tint, MaterialKeys.AlphaBlendColorMap, MaterialKeys.AlphaBlendColorValue, Color.White);
context.MaterialPass.Parameters.Set(MaterialKeys.UsePixelShaderWithDepthPass, true);
if (!context.Tags.Get(HasFinalCallback))
{
context.Tags.Set(HasFinalCallback, true);
context.AddFinalCallback(MaterialShaderStage.Pixel, AddDiffuseSpecularAlphaBlendColor);
}
}
public override void GenerateShader(MaterialGeneratorContext context)
{
Vector4 emissiveMin = Vector4.Zero;
Vector4 emissiveMax = new Vector4(float.MaxValue);
EmissiveMap.ClampFloat4(ref emissiveMin, ref emissiveMax);
Intensity.ClampFloat(0, float.MaxValue);
context.SetStream(EmissiveStream.Stream, EmissiveMap, MaterialKeys.EmissiveMap, MaterialKeys.EmissiveValue);
context.SetStream("matEmissiveIntensity", Intensity, MaterialKeys.EmissiveIntensityMap, MaterialKeys.EmissiveIntensity);
var shaderBuilder = context.AddShading(this);
shaderBuilder.ShaderSources.Add(new ShaderClassSource("MaterialSurfaceEmissiveShading", UseAlpha));
}
public override void GenerateShader(MaterialGeneratorContext context)
{
var shaderSource = new ShaderMixinSource();
shaderSource.Mixins.Add(new ShaderClassSource("MaterialSurfaceSubsurfaceScatteringShading"));
TranslucencyMap.ClampFloat(0.0f, 1.0f);
context.SetStream(ScatteringStrengthStream.Stream, TranslucencyMap, MaterialKeys.ScatteringStrengthMap, MaterialKeys.ScatteringStrengthValue);
// TODO: Generate a hash with the scattering kernel and scattering width!
var parameters = context.MaterialPass.Parameters;
parameters.Set(Stride.Rendering.Materials.MaterialSurfaceSubsurfaceScatteringShadingKeys.Translucency, Translucency);
parameters.Set(Stride.Rendering.Materials.MaterialSurfaceSubsurfaceScatteringShadingKeys.ScatteringWidth, ScatteringWidth);
// Generate and set the scattering profile:
shaderSource.AddComposition("scatteringProfileFunction", ProfileFunction.Generate(context));
// Generate and set the scattering kernel:
Vector4[] scatteringKernel = KernelFunction.Generate();
parameters.Set(Stride.Rendering.Materials.MaterialSurfaceSubsurfaceScatteringShadingKeys.ScatteringKernel, scatteringKernel);
/*
* {
* Game game = Services.GetSafeServiceAs<Game>();
* SubsurfaceScatteringSettings settings = game.Settings.Configurations.Get<SubsurfaceScatteringSettings>();
* //SubsurfaceScatteringSettings settings = services.GetSafeServiceAs<SubsurfaceScatteringSettings>(); // TODO: Query the settings like this once the system is ready.
* }
*/
var shaderBuilder = context.AddShading(this);
shaderBuilder.LightDependentSurface = shaderSource;
}
public override void GenerateShader(MaterialGeneratorContext context)
{
// Exclude ambient occlusion from uv-scale overrides
var revertOverrides = new MaterialOverrides();
revertOverrides.UVScale = 1.0f / context.CurrentOverrides.UVScale;
context.PushOverrides(revertOverrides);
context.SetStream(OcclusionStream.Stream, AmbientOcclusionMap, MaterialKeys.AmbientOcclusionMap, MaterialKeys.AmbientOcclusionValue, Color.White);
context.PopOverrides();
context.SetStream("matAmbientOcclusionDirectLightingFactor", DirectLightingFactor, null, MaterialKeys.AmbientOcclusionDirectLightingFactorValue);
if (CavityMap != null)
{
context.SetStream(CavityStream.Stream, CavityMap, MaterialKeys.CavityMap, MaterialKeys.CavityValue, Color.White);
context.SetStream("matCavityDiffuse", DiffuseCavity, null, MaterialKeys.CavityDiffuseValue);
context.SetStream("matCavitySpecular", SpecularCavity, null, MaterialKeys.CavitySpecularValue);
}
}
public override void GenerateShader(MaterialGeneratorContext context)
{
var alpha = Alpha ?? new ComputeFloat(DefaultAlpha);
alpha.ClampFloat(0, 1);
context.SetStream(AlphaDiscardStream.Stream, alpha, MaterialKeys.AlphaDiscardMap, MaterialKeys.AlphaDiscardValue, new Color(DefaultAlpha));
context.MaterialPass.Parameters.Set(MaterialKeys.UsePixelShaderWithDepthPass, true);
if (!context.Tags.Get(HasFinalCallback))
{
context.Tags.Set(HasFinalCallback, true);
context.AddFinalCallback(MaterialShaderStage.Pixel, AddDiscardFromLuminance);
}
}
public override void GenerateShader(MaterialGeneratorContext context)
{
if (DisplacementMap == null)
{
return;
}
var materialStage = (MaterialShaderStage)Stage;
// reset the displacement streams at the beginning of the stage
context.AddStreamInitializer(materialStage, "MaterialDisplacementStream");
// set the blending mode of displacement map to additive (and not default linear blending)
context.UseStreamWithCustomBlend(materialStage, DisplacementStream, new ShaderClassSource("MaterialStreamAdditiveBlend", DisplacementStream));
// build the displacement computer
var displacement = DisplacementMap;
if (ScaleAndBias) // scale and bias should be done by layer
{
displacement = new ComputeBinaryScalar(displacement, new ComputeFloat(2f), BinaryOperator.Multiply);
displacement = new ComputeBinaryScalar(displacement, new ComputeFloat(1f), BinaryOperator.Subtract);
}
displacement = new ComputeBinaryScalar(displacement, Intensity, BinaryOperator.Multiply);
// Workaround to inform compute colors that sampling is occurring from a vertex shader
context.IsNotPixelStage = materialStage != MaterialShaderStage.Pixel;
context.SetStream(materialStage, DisplacementStream, displacement, MaterialKeys.DisplacementMap, MaterialKeys.DisplacementValue);
context.IsNotPixelStage = false;
var scaleNormal = materialStage != MaterialShaderStage.Vertex;
var positionMember = materialStage == MaterialShaderStage.Vertex ? "Position" : "PositionWS";
var normalMember = materialStage == MaterialShaderStage.Vertex ? "meshNormal" : "normalWS";
context.SetStreamFinalModifier <MaterialDisplacementMapFeature>(materialStage, new ShaderClassSource("MaterialSurfaceDisplacement", positionMember, normalMember, scaleNormal));
}