Help!  My program doesn’t run properly in Release (Debug) mode!

When a program works in Debug mode, but not Release mode, there is usually some sort of memory error, or error with OpenGL.

Solution:  useglGetError() to try to determine if/where an error is occurring

• For example, put  GLenum e = glGetError(); in your Game::Render() method.
• If an error is generated, work back (as discussed in Lecture 2) to find what is causing the error.

Examples

• Binding to an unallocated texture causes error GL_INVALID_OPERATION (1282)
• Setting uniforms in programs that are not being used (through glUseProgram) causes error GL_INVALID_OPERATION (1282)

High