The OpenGL Settings dialog enables you to select the display properties of the Camera View OpenGL Shading.
Flat shading - Renders model without smooth shading. Shows facets on models.
Fast Mapping Approx - Increases rendering speed if Show Image Maps enabled.
Show Image Maps - Renders model with image maps displayed
Anti-Alias - Renders with anti-aliasing enabled. Very slow and memory intensive.
Accelerate for Hardware (No Mapping) - OpenGL renders quicker if an OpenGL hardware accelerator is installed. Will not render with image maps if this option enabled.
Depth Cue Light - Increases lighting saturation.
Fog - Renders with fog.