public virtual void Visit(MaterialGeneratorContext context)
{
// If not enabled, or Material or BlendMap are null, skip this layer
if (!Enabled || Material == null || BlendMap == null || context.FindAsset == null)
{
return;
}
// Find the material from the reference
var material = context.FindAsset(Material) as IMaterialDescriptor;
if (material == null)
{
context.Log.Error("Unable to find material [{0}]", Material);
return;
}
// Check that material is valid
var materialName = context.GetAssetFriendlyName(Material);
if (!context.PushMaterial(material, materialName))
{
return;
}
try
{
// TODO: Because we are not fully supporting Streams declaration in shaders, we have to workaround this limitation by using a dynamic shader (inline)
// TODO: Handle MaterialOverrides
// Push a layer for the sub-material
context.PushOverrides(Overrides);
context.PushLayer();
// Generate the material shaders into the current context
material.Visit(context);
// Generate Vertex and Pixel surface shaders
foreach (MaterialShaderStage stage in Enum.GetValues(typeof(MaterialShaderStage)))
{
Generate(stage, context);
}
}
finally
{
// Pop the stack
context.PopLayer();
context.PopOverrides();
context.PopMaterial();
}
}
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);
}