graphics >> Rectangle Tessellation?

by Z2FtZU1ha2Vy » Tue, 03 May 2005 00:41:02 GMT

Currently, I tessellate my quads myself in order to improve lighting. But, I
see that there is some built in tessellation in D3D using the
_D3DVERTEXELEMENT9 structure.

Before I convert my code to use it, my questions are:

Would this be a good way to tessellate my quads?

Is this faster than if I just tessellate them at startup and draw each quad
myself?

Does this work on older cards without vertex shaders and other modern
capabilities?



graphics >> Rectangle Tessellation?

by Wessam Bahnassi » Tue, 03 May 2005 01:54:53 GMT


I think you're talking about tri-patches and the rest of the family?
The problem is that they're not widely supported on HW. However, you might
find D3DXTessellate*Patch() useful for your case?

Wessam Bahnassi
Microsoft DirectX MVP,
Lead Programmer
In|Framez

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