SubPolygonDisplacement (SubDivisionSurface)

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JackMcRip
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Will come the feature of Subdivision Displacement in future ?
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radiance
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Joined: Wed Oct 21, 2009 2:33 pm

hi, this is very difficult to implement in a raytracer and due to the complexity involved to adapt it to a gpu raytracer i don't think any gpu based unbiased raytracer will support it propperly. we're hoping to implement this in the near future, but a pre-computed solution is planned for the near future (probably 2.3, catmull-clark subdivs and displacement, precomputed to triangle after loading from scenefile.)

Radiance
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JackMcRip
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is there no way to use the tessellation engine witch comes with new graphics cards ?
http://ixbtlabs.com/articles3/video/gf100-2-p11.html
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radiance
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Joined: Wed Oct 21, 2009 2:33 pm

JackMcRip wrote:is there no way to use the tessellation engine witch comes with new graphics cards ?
http://ixbtlabs.com/articles3/video/gf100-2-p11.html
No, as this is a built in feature for a fixed function pipeline, eg DirectX and OpenGL,
and works with a zbuffer renderer like these cards do in hardware.

the tesselation engine is not available via cuda and is not easily implemented in a raytracer.

Radiance
Win 7 x64 & ubuntu | 2x GTX480 | Quad 2.66GHz | 8GB
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