OpenGL Error Checking

OpenGL Development
#1

I have an OpenGL application and for some reason it freezes every time I run it. I’ve tried logging the error with LWJGL’s [icode]
Util.checkGLError()[/icode] but I get nothing. I’ve heard there are numerous ways of error checking; what are they? I can’t find any LWJGL related information on the matter.

#2

Well I’ve never heard of an OpenGL error causing an application. Have you forgotten to call Display.update() at the end of the loop or something?

#3

Did you forget to call update(true)?

Also you can use this code to check for GL errors:


int err;
        if ((err=GL11.glGetError()) != GL11.GL_NO_ERROR) {
            throw new UxException("OpenGL Threw Exception: " + err);
        }
#4

Ahh yeah that was the problem. How embarrassing. Thanks for the snippet though, I’ll find it useful.

#5

@Dxu1994 that code snippet is pretty much exactly the same except it throws a org.lwjgl.opengl.OpenGLException.

Edit: @Troubleshoots Don’t worry about it - we’ve all been there (in my case several times)