Microsoft DirectX 8.0 (Visual Basic) |
Many current authoring tools support higher-order primitives to enable more powerful modeling operations than are commonly provided for with planar triangle meshes. When used efficiently, so that the number of patches generated is reasonable, such tools can produce content that can be rendered directly by the application programming interface (API). To meet this requirement, a new entry point has been added that interprets the incoming vertex data stream as a 2-D array of control points and tessellates it to the desired resolution.