Disable Alpha Test
Use the Disable Alpha Test override mode to understand the performance impact of testing each pixel’s alpha component. Performance may increase because at least the same number of pixels will be rendered, but may decrease because alpha blending may be enabled to blend pixels that were rejected by the alpha test.
NOTE
The Disable Alpha Test override mode might cause rendering artifacts to appear, especially if the scene uses textures or other techniques that would not be rendered due to failing the alpha test
NOTE
This override is available only for Microsoft DirectX* 9. For Microsoft DirectX* 10 and Microsoft DirectX* 11 applications you should use the Simple Pixel Shader feature to get similar results.
See Also
Override Modes Overview
Disable all overrides
Null Hardware
Disable Draw Calls
Wireframe
2×2 Texture
Simple Pixel Shader
1×1 Scissor Rect
Disable Texture Filtering
Disable Z-Test
Disable Z-Write
Cull None
Cull Clockwise
Cull Counter-Clockwise
Disable Alpha Blending
Overdraw Visualization
FPS Limit