stack overflow creating a vertex buffer?
Post: #1Code:
//Initialize ARB
glGenBuffersARB(1, &bufferIdentifier);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, bufferIdentifier);
int bufferLength = m_maxParticles * 3 * 4 * sizeof(GLfloat);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, bufferLength, NULL, GL_STREAM_DRAW_ARB);
GLenum er = glGetError();It's producing an error value of 1283, which is 0x0503 and a GL_STACK_OVERFLOW error. Unless my math is off, what's going on here? It's not a memory error, and it shouldn't be, since even with 10000 particles that's only a half a megabyte, and with 128 megabytes of VRAM, that's not even a dent.
Post: #2
the stack overflow can only come from glPushMatrix, I believe. Those calls aren't at fault. Use the OpenGL profiler's break on error functionality to find the real culprit.
Post: #3
Huh, yeah, you're right. I found a glPushMatrix in another part of my code that I accidentaly wrote glPushMatrix when I was trying to pop it back off. Odd thing is, it's never caused a problem and that bit of code has been in there since the beginning. Will a GL_STACK_OVERFLOW error just disallow any further stack manipulations instead of terminate the program?
Post: #5
How does glGetError determine which error it produces? If there are multiple errors, does it return the most recent or the most important(program terminating errors)?
Post: #6
There can be multiple errors flagged simultaneously. They are returned in unspecified order.
Possibly Related Threads...
| Thread: | Author | Replies: | Views: | Last Post | |
| Vertex buffer generation and rendering iphone | eliscool | 2 | 2,378 |
Dec 17, 2008 05:57 PM Last Post: ThemsAllTook |
|
| New Apple Render to Vertex Buffer Sample | OneSadCookie | 13 | 6,672 |
Oct 15, 2006 01:10 AM Last Post: OneSadCookie |
|