Override Modes Overview

Override modes provide a method for high-level performance analysis and visual debugging. Performance-related state overrides enable you to find high-level bottlenecks via subtractive analysis.

These override modes operate “behind the scenes” within the graphics driver to modify one or more of the render states of the graphics pipeline. These enable you to quickly perform “what if” analysis of various portions of the graphics pipeline in order to isolate one or more performance bottlenecks in your application. If using a certain override mode improves performance significantly, then that overridden mode might be a performance bottleneck, and therefore warrants further analysis.

You can use the following override modes to perform various ‘what-if’ experiments within the tool:

• Disable All

• 1×1 Scissor Rect

• Cull Clockwise

• Cull Counter-Clockwise

• Cull None

• Disable Alpha Blending

• Disable Alpha Test

• Disable Draw Calls

• Disable Texture Filtering

• Disable Z-Test

• Disable Z-Write

• Null Hardware

• Overdraw Visualization

• Show Wireframe

• Simple Pixel Shader

• 2×2 Texture

• FPS Limit

Override Modes Overview