Dear Brian, dear mesa3d-team, as promised, I did some more testing with the example of a trimmed NURBS surface (half sphere - rational b-spline), that was executed/ displayed very slow - a lot of paging was going on.
The reason seems to be: the parameterization of u and v of the surface (to be trimmed) has to be in a "close" number range. In my example the parameterization of u is in the range from 0.0 to 400. while in v, it is in the range fromm 0.0 to 3.14 . I changed the parameterization and my example was executed/ displayed as fast as "trim.c" from the "red book". I think, this a good news to get an idea about a fix in mesa3d, but also to be able to adapt the application to that matter in the meantime. I will come up with the examples showing the difference next week. Have a good weekend, - Ruediger ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
