NURBS

[sky-raven]

Can OpenGL truely produce rational B Splines
since in its function gluNurbsCurve or
gluNurbsSurface there is no provision for
homogeneous weighting factors ?

[Rob The Bloke]

Originally posted by sky-raven:
Can OpenGL truely produce rational B Splines
since in its function gluNurbsCurve or
gluNurbsSurface there is no provision for
homogeneous weighting factors ?


yes there is provision for weighting factots in gluNurbsSurface and gluNurbsCurve. Specify vertex data with GL_*_VERTEX_4 as the last parameter.