private void Generate(MaterialShaderStage stage, MaterialGeneratorContext context)
{
if (!context.HasSurfaceShaders(stage))
{
return;
}
// Blend setup for this layer
context.SetStream(stage, BlendStream, BlendMap, MaterialKeys.BlendMap, MaterialKeys.BlendValue);
// Generate a dynamic shader name
// Create a mixin
var shaderMixinSource = new ShaderMixinSource();
shaderMixinSource.Mixins.Add(new ShaderClassSource("MaterialSurfaceStreamsBlend"));
// Add all streams
foreach (var stream in context.Streams[stage])
{
shaderMixinSource.AddCompositionToArray("blends", context.GetStreamBlendShaderSource(stream));
}
var materialBlendLayerMixin = context.GenerateSurfaceShader(stage);
// Add the shader to the mixin
shaderMixinSource.AddComposition("layer", materialBlendLayerMixin);
context.ResetSurfaceShaders(stage);
context.AddSurfaceShader(stage, shaderMixinSource);
}
public static MaterialShaderResult Generate(MaterialDescriptor materialDescriptor, MaterialGeneratorContext context, string rootMaterialFriendlyName)
{
if (materialDescriptor == null)
{
throw new ArgumentNullException("materialDescriptor");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
var result = new MaterialShaderResult();
context.Log = result;
var material = context.Material;
result.Material = context.Material;
context.Parameters = material.Parameters;
context.PushMaterial(materialDescriptor, rootMaterialFriendlyName);
context.PushLayer();
materialDescriptor.Visit(context);
context.PopLayer();
context.PopMaterial();
if (!material.Parameters.ContainsKey(MaterialKeys.TessellationShader))
{
material.Parameters.Set(MaterialKeys.TessellationShader, null);
}
material.Parameters.Set(MaterialKeys.VertexStageSurfaceShaders, context.GenerateSurfaceShader(MaterialShaderStage.Vertex));
material.Parameters.Set(MaterialKeys.DomainStageSurfaceShaders, context.GenerateSurfaceShader(MaterialShaderStage.Domain));
material.Parameters.Set(MaterialKeys.PixelStageSurfaceShaders, context.GenerateSurfaceShader(MaterialShaderStage.Pixel));
material.Parameters.Set(MaterialKeys.VertexStageStreamInitializer, context.GenerateStreamInitializer(MaterialShaderStage.Vertex));
material.Parameters.Set(MaterialKeys.DomainStageStreamInitializer, context.GenerateStreamInitializer(MaterialShaderStage.Domain));
material.Parameters.Set(MaterialKeys.PixelStageStreamInitializer, context.GenerateStreamInitializer(MaterialShaderStage.Pixel));
return(result);
}