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Drawing multiple fans with one call.

Graphics and GPU Programming Programming

Started by GekkoCube August 12, 2003 07:18 PM

1 comment, last by GekkoCube 20 years, 8 months ago

GekkoCube

116

Author

August 12, 2003 07:18 PM

If i create two separate fans, unattached, and if i place both vertex sets into one single vertex buffer and then call DrawPrimitive once, will D3D be able to distinguish that there are two fans instead of one weird one? how does D3D know it if it does?

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Raloth

379

August 12, 2003 08:08 PM

No, you must do two separate calls. This is why triangle fans aren''t usually the greatest.

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GekkoCube

116

Author

August 12, 2003 09:13 PM

thanks.
no wonder my modified algorithm to draw a bunch of triangle fans within a vertex buffer looks like crap.

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