AlphaTestEffect

This is a native Direct3D 11 implementation of the built-in AlphaTestEffect from XNA Game Studio 4 which supports per-pixel alpha testing.

See also Effects

Header

#include <Effects.h>

Initialization

Construction requires a Direct3D 11 device.

std::unique_ptr<AlphaTestEffect> effect;
effect = std::make_unique<AlphaTestEffect>(device);

For exception safety, it is recommended you make use of the C++ RAII pattern and use a std::unique_ptr or std::shared_ptr

Interfaces

AlphaTestEffect supports IEffect, IEffectMatrices, and IEffectFog

Input layout

This effect requires SV_Position and TEXCOORD0. It also requires COLOR if per-vertex colors are enabled,

Properties

• SetVertexColorEnabled: Enables per-vertex color. Defaults to false. Modifying this setting requires recreating associated input layouts, and enabling it requires COLOR.

• SetTexture: Associates a texture shader resource view with the effect. Can be set to nullptr to remove a reference.

• SetAlphaFunction: Sets the alpha comparison function. See D3D11_COMPARISON_FUNC.

• SetReferenceAlpha: Sets the alpha reference value for the test.