/// <summary>
/// Applies all the local shader parameters before drawing any primitives.
/// </summary>
protected internal virtual void BeginApplyLocalParameters(DrawingContext3D context, MaterialGroup material)
{
}
private static bool BuildByUsage(MaterialGroup materialGroup, MaterialUsage usage, out byte[] effectCode, out byte[] key)
{
key = effectCode = null;
// Make sure we have the necessary building blocks of a shader
if (materialGroup.MaterialParts.Count <= 0)
{
materialGroup.MaterialParts.Add(new DiffuseMaterialPart()
{
DiffuseColorEnabled = false, TextureEnabled = false
});
}
var dependentPartTypes = new List <Type>();
for (int p = 0; p < materialGroup.MaterialParts.Count; p++)
{
var currentPart = materialGroup.MaterialParts[p];
currentPart.GetDependentParts(usage, dependentPartTypes);
for (int i = 0; i < dependentPartTypes.Count; ++i)
{
var type = dependentPartTypes[i];
if (!materialGroup.MaterialParts.Any(x => x.GetType() == type))
{
var part = (MaterialPart)Activator.CreateInstance(type);
part.GetDependentParts(usage, dependentPartTypes);
materialGroup.MaterialParts.Insert(++p, part);
}
else
{
var parts = materialGroup.MaterialParts.Where(x => x.GetType() == type && x != currentPart).ToArray();
foreach (var pt in parts)
{
materialGroup.MaterialParts.Remove(pt);
}
p = materialGroup.MaterialParts.IndexOf(currentPart);
foreach (var pt in parts)
{
materialGroup.MaterialParts.Insert(++p, pt);
}
}
}
dependentPartTypes.Clear();
}
if (!materialGroup.MaterialParts.OfType <VertexTransformMaterialPart>().Any())
{
materialGroup.MaterialParts.Add(new VertexTransformMaterialPart());
}
var builderContext = CreateMaterialGroupBuilderContext(materialGroup.MaterialParts, usage, true);
if (builderContext.PixelShaderOutputs.Count <= 0)
{
return(false);
}
try
{
// Force 3_0 when using instancing
if (materialGroup.MaterialParts.OfType <InstancedMaterialPart>().Any())
{
throw new InvalidOperationException();
}
return(BuildEffect(builderContext, "2_0", out effectCode, out key));
}
catch
{
return(BuildEffect(builderContext, "3_0", out effectCode, out key));
}
}
/// <summary>
/// Applies all the local shader parameters before drawing any primitives.
/// </summary>
protected internal override void BeginApplyLocalParameters(DrawingContext3D context, MaterialGroup material)
{
var count = materialParts.Count;
for (int i = 0; i < count; ++i)
{
materialParts[i].BeginApplyLocalParameters(context, material);
}
}
/// <summary>
/// Applies all the local shader parameters before drawing any primitives.
/// </summary>
protected internal override void BeginApplyLocalParameters(DrawingContext3D context, MaterialGroup material)
{
parameters.BeginApplyLocalParameters(context, MaterialGroup);
}
/// <summary>
/// Sets the mask texture scale of the material group.
/// </summary>
public static void SetMaskTextureScale(MaterialGroup materialGroup, Vector2 value)
{
AttachablePropertyServices.SetProperty(materialGroup, MaskTextureScaleProperty, value);
BindMaskTextureParameters(materialGroup);
}
