Calling all OpenGL guru's!
Author
Pop quiz! You're trying to draw a mesh with two textures and a fixed number of vertices, but the vertices are not static. Which is generally faster?
Multitexturing with glVertex3f calls
_or_
Two passes, uploading and calling display list (or vertex buffer).
Never use glVertex for nontrivial geometry. It is slooooooooooooooow.
In your case, consider VBOs.
In your case, consider VBOs.
Author
erm...
"You're trying to draw a mesh with two textures and a fixed number of vertices, but the vertices are not static."
You know, quoting someone like that makes you look really unpolite.
Ask Mr. Google for GL_STREAM_DRAW_ARB okay?
Ask Mr. Google for GL_STREAM_DRAW_ARB okay?
As the AP points out there are multiple ways to handle VBO data. You can tell the OpenGL state machine that you are more then likely going to be changing the data in the VBO at run time. Display lists are generally used for static geometry, recreating them every time you need them completely trivializes their use.
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
