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Riviera Kid
Joined: 29 Oct 2005 Posts: 9
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Posted: Sun Nov 13, 2005 4:06 am Post subject: hardware tessellation of polygons |
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I understand that the psp has hardware tessellation correct?
well i havent got a notion of how to do it. I have done a search about but i cant find much on the subject.
Can anyone help me? |
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chp
Joined: 23 Jun 2004 Posts: 313
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Posted: Sun Nov 13, 2005 8:32 pm Post subject: |
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There's a sample in the PSPSDK that shows the use of spline-surfaces, and I think there's something for pspgl aswell. _________________ GE Dominator |
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Ska
Joined: 10 Oct 2005 Posts: 4
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Posted: Mon Nov 14, 2005 10:15 pm Post subject: |
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Do u mean something like GluTess functions (given a list of countours2d, produce triangles in according with fill-rules, handling non simplicity, holes, intersections, and all other degenerations) but in hardware ? (incredible if real...)
Ska - Amanith Team |
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jsgf
Joined: 12 Jul 2005 Posts: 254
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Posted: Wed Nov 23, 2005 10:08 am Post subject: |
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| There's only curved surface subdivision. There's no general polygon tesselation. |
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Ska
Joined: 10 Oct 2005 Posts: 4
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Posted: Wed Nov 23, 2005 5:01 pm Post subject: |
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Eheheh ;) I see.
I've already implemented a software tesselator (like glutess one) for amanith framework, and i'm almost sure that it is impossible to do in hardware.
Ska - Amanith Team |
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jsgf
Joined: 12 Jul 2005 Posts: 254
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Posted: Wed Nov 23, 2005 5:23 pm Post subject: |
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| Yeah, I've done some myself. You could do it in hardware fairly easily if you exclude self-intersecting shapes. Then it's fairly easy, but not particularly useful, unless your hardware is specifically for rasterising 2D vector content. |
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