private RenderMaterial GetObjectMaterial(Rhino.DocObjects.RhinoObject rhinoObject)
{
ObjectMaterialSource source = rhinoObject.Attributes.MaterialSource;
Rhino.Render.RenderMaterial renderMaterial = null;
if (source == ObjectMaterialSource.MaterialFromObject)
{
renderMaterial = rhinoObject.RenderMaterial;
}
else if (source == ObjectMaterialSource.MaterialFromLayer)
{
int layerIndex = rhinoObject.Attributes.LayerIndex;
renderMaterial = GetLayerMaterial(layerIndex);
}
return(renderMaterial);
}
private int GetObjectMaterialIndex(RhinoObject InRhinoObject, RhinoSceneHierarchyNodeInfo ParentNodeInfo)
{
ObjectMaterialSource MaterialSource = InRhinoObject.Attributes.MaterialSource;
if (MaterialSource == ObjectMaterialSource.MaterialFromParent)
{
// Special use-case for block instances with the source material set to "Parent".
// The material source in this case is actually the layer in which the definition objects are.
if (InRhinoObject is InstanceObject)
{
InstanceObject Instance = InRhinoObject as InstanceObject;
RhinoObject[] DefinitionObjects = Instance.InstanceDefinition.GetObjects();
if (DefinitionObjects != null && DefinitionObjects.Length > 0)
{
Layer ObjectLayer = RhinoDocument.Layers.FindIndex(InRhinoObject.Attributes.LayerIndex);
return(ObjectLayer.RenderMaterialIndex);
}
}
else if (ParentNodeInfo == null)
{
MaterialSource = ObjectMaterialSource.MaterialFromLayer;
}
}
switch (MaterialSource)
{
case ObjectMaterialSource.MaterialFromLayer:
Layer ObjectLayer = RhinoDocument.Layers.FindIndex(InRhinoObject.Attributes.LayerIndex);
return(ObjectLayer.RenderMaterialIndex);
case ObjectMaterialSource.MaterialFromParent:
return(ParentNodeInfo.MaterialIndex);
case ObjectMaterialSource.MaterialFromObject:
default:
return(InRhinoObject.Attributes.MaterialIndex);
}
}
