Hi Ok.. I just show the source and then I ask the question. ////////////////////// Here is my Problem ////////////////////// glMap2f(GL_MAP2_VERTEX_3, 0.0, 10.0, 3, 30 , 0.0, 10.0, 150, 30 , &Hillx01[0][0][0]); ///////////////////// I want a 50x50 surface. But when the value is bigger then 30 its not showing the surface. What am I doing wrong. [edited by - arkansas on October 10, 2002 10:18:16 AM] [edited by - arkansas on October 10, 2002 10:19:05 AM]

GL_INVALID_VALUE is generated if either uorder or vorder is less than 1 or greater than the return value of GL_MAX_EVAL_ORDER

Seems you can''t make a map larger than ~30(32) with that fuction.

Hey

Is there another way to do things ??

arkansas

Hey

Is 30x30 enough to make a demo ??
I''m afraid of wrong propotions.

arkansas