Large Vertex Array Crash with VBO

OpenGL OpenGL: Advanced Coding
1

Hello. I have the following problem:
I use the ARB_vertex_buffer_object extension to buffer my vertex array (float * VertexArray) in video memory. But when i try to cache larger arrays (with more than ~22500 vertices = 270,000 bytes) my program simply stops responding (blank screen). When i turn off VBO it runs normally (and damned slow )
Any ideas would be great! Thank you!

2

What implementation are you using?

3

Im using VC++ 6.0 SP5
May i include the code too? (it works fine with VertexCount < ~150)

4

Try to check what is maximum aviable number of indices in a vertex array like this:

int maxINDICES,maxVERTICES;
glGetIntegerv(maxVERTICES, GL_MAX_ARRAY_VERTICES);
glGetIntegerv(maxINDICES, GL_MAX_ARRAY_INDICES);

Hope this will help.

[This message has been edited by LordOfTheUniverse (edited 01-12-2004).]

5

@orbano: I guess Korval wants to know which videocard+driver you are using

6

There are no such variables defined in the ARB_vertex_buffer_object extension. (the standard ogl vertex array works fine)

Im using Radeon 8500 with catalyst 3.9

7

Im using Radeon 8500 with catalyst 3.9

Try the Cat 3.10’s.

8

it crashes too. even with radeon9700