RenderState.AlphaTestEnable Property
XNA Game Studio Express
Gets or sets a render state that enables a per-pixel alpha test. The default value is false.
Namespace: Microsoft.Xna.Framework.Graphics
Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)
If the test passes, the pixel is processed by the frame buffer. Otherwise, all frame-buffer processing is skipped for the pixel. The test is done by comparing the incoming alpha value with the reference alpha value, using the comparison function provided by AlphaFunction. The reference alpha value is determined by the value set for ReferenceAlpha.
