The Debug tab contains several options for testing purposes only.

Disable EXT framebuffers

Disable ARB framebuffers

Disable GLES2 compatibility extension

Disable EXT direct state access

Disable ARB direct state access

Disable sampler objects

Disable EXT_gpu_shader4 extension

Upload surface contents on unlock

Disable mouse cursor hooks

Disable GLSL 1.30 support

DEBUG: Blend destination color key texture with source

Disable draw on palette change

Maximum OpenGL version