public DefaultModelRenderable(DefaultRenderer defaultRenderer, DefaultModelRenderableShared shared, TangentVertex[] vertices, short[] indices, IDefaultModelMaterial material)
 {
     this.shared     = shared;
     Vertices        = vertices;
     Indices         = indices;
     Material        = material;
     DefaultRenderer = defaultRenderer;
     Vertices        = vertices;
     Indices         = indices;
 }
 public DefaultModelRenderableShared(DefaultRenderer renderer)
 {
     Renderer = renderer;
 }