View Full Version : Bug in glEvalMesh documentation?

02-13-2011, 06:31 AM

I studied carefully the documentation:

It says that glEvalMesh1(GL_LINE,...) is equivalent to:

for(...) glEvalCoord1(...);

However, my experiments show that it is in fact equivalent to:

for(...) glEvalCoord1(...);

I didn't use glEvalMesh1 for a long time, because I actually needed the line strip and after reading the docs I thought you can't get a line strip. But it seems like the documentation is flawed, because in fact you do get a line strip.

Could somebody please confirm that there is this bug in documentation? Knowing precisely how these functions work is very important to me.

02-19-2011, 01:45 AM
The red "OpenGL Programming Guide Second Edition" book seems to confirm my tests. In the book on page 445 it says that GL_LINE is equivalent to GL_LINE_STRIP. So I guess there is a bug in the documentation. How do I submit a bug report?

Rosario Leonardi
02-19-2011, 07:30 AM
Here -> http://www.opengl.org/documentation/specs/feedback/ <--

There are still people using EvalMesh?

02-27-2011, 03:51 AM
Thanks, I have submitted the issue.

What do you mean with "still using EvalMesh"? Is there some alternative? I must say the book I have is from 97, so maybe it's too old to read...