I have a NURBS surface which has 4 curved edges. (I have the 4 bezier points for the curves) I'd like to slice the NURBS surface with a slicing-plane thats on-axis (not as advanced as 3DSMAX!), and calculate a curve where the slicing-plane and NURBS surface intersects. ...
I'm writing a NURBS class that uses OpenGL's GLU extension to do rendering, but I just realized I have no idea how to set the control point weights. It's not in the Red Book or the GLU documentation, and the web doesn't mention much of it, either. Is it possible that GLU's NURBS implementation just doesn't include this feature? If so,...
I'll apologize in advance in case this is obvious; I've been unable to find the right terms to put into Google. What I want to do is to find a bounding volume (AABB is good enough) for an arbitrary parametric range over a trimmed NURBS surface. For instance, (u,v) between (0.1,0.2) and (0.4,0.6). EDIT: If it helps, it would be fine f...
So I need to find out where the control points would be for a cubic bezier curve when only knowing points on the curve, the points can lie in 3D. It would be ideal if I could do this for any number of points on the curve. Most of what I have found deals only with 2D, or only for 4 points. ...
Can you render NURBS on the GPU with DirectX 11? I've been reading up on current trends to rendering surfaces like these, but I don't see anything on NURBS. I found some related references, but nothing solid... like "Approximating Catmull-Clark Subdivision Surfaces with Bicubic Patches" by Charles Loop and Scott Schaefer. - ...