WpfOptimizedModel3DGroupNodeCombineModelsWithSameMaterial Property

Gets or sets a boolean that specifies if models with the same materials (same diffuse color and specular properties) are combined and rendered with one Draw call. If false the mesh geometries for all models are still combined into one vertex and index buffer, but each model is rendered with its own material and with its own Draw call. This is useful when the material of the objects is changed.

public bool CombineModelsWithSameMaterial { get; set; }