len3d

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#1楼 [楼主]2008-08-11 14:23Len3d

Vlachos, Alex, Jörg Peters, Chas Boyd, and Jason L. Mitchell, "Curved PN Triangles," ACM Symposium on Interactive 3D Graphics 2001, pp. 159-166, 2001. http://alex.vlachos.com/graphics/CurvedPNTriangles.pdf

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#2楼 [楼主]2008-08-14 09:27Len3d

this is implemented in elvish ray now.

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#3楼 [楼主]2009-01-16 10:42Len3d

a tricky way to match normals of displaced triangles at the junctions is that using normals calculated by bump mapping instead of recomputed geonormals.

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