# BlendFunction

Scene/BlendFunction.js 8
Determines how blending factors are computed.

##### Properties:

Name | Type | Description
--- | --- | ---
`ZERO` | Number | The blend factor is zero.
`ONE` | Number | The blend factor is one.
`SOURCE_COLOR` | Number | The blend factor is the source color.
`ONE_MINUS_SOURCE_COLOR` | Number | The blend factor is one minus the source color.
`DESTINATION_COLOR` | Number | The blend factor is the destination color.
`ONE_MINUS_DESTINATION_COLOR` | Number | The blend factor is one minus the destination color.
`SOURCE_ALPHA` | Number | The blend factor is the source alpha.
`ONE_MINUS_SOURCE_ALPHA` | Number | The blend factor is one minus the source alpha.
`DESTINATION_ALPHA` | Number | The blend factor is the destination alpha.
`ONE_MINUS_DESTINATION_ALPHA` | Number | The blend factor is one minus the destination alpha.
`CONSTANT_COLOR` | Number | The blend factor is the constant color.
`ONE_MINUS_CONSTANT_COLOR` | Number | The blend factor is one minus the constant color.
`CONSTANT_ALPHA` | Number | The blend factor is the constant alpha.
`ONE_MINUS_CONSTANT_ALPHA` | Number | The blend factor is one minus the constant alpha.
`SOURCE_ALPHA_SATURATE` | Number | The blend factor is the saturated source alpha.

### Members

#### static constant Cesium.BlendFunction.CONSTANT_ALPHA : Number
Scene/BlendFunction.js 111

The blend factor is the constant alpha.

Default Value: `WebGLConstants.CONSTANT_ALPHA`

#### static constant Cesium.BlendFunction.CONSTANT_COLOR : Number
Scene/BlendFunction.js 95

The blend factor is the constant color.

Default Value: `WebGLConstants.CONSTANT_COLOR`

#### static constant Cesium.BlendFunction.DESTINATION_ALPHA : Number
Scene/BlendFunction.js 79

The blend factor is the destination alpha.

Default Value: `WebGLConstants.DST_ALPHA`

#### static constant Cesium.BlendFunction.DESTINATION_COLOR : Number
Scene/BlendFunction.js 47

The blend factor is the destination color.

Default Value: `WebGLConstants.DST_COLOR`

#### static constant Cesium.BlendFunction.ONE : Number
Scene/BlendFunction.js 23

The blend factor is one.

Default Value: `WebGLConstants.ONE`

#### static constant Cesium.BlendFunction.ONE_MINUS_CONSTANT_ALPHA : Number
Scene/BlendFunction.js 119

The blend factor is one minus the constant alpha.

Default Value: `WebGLConstants.ONE_MINUS_CONSTANT_ALPHA`

#### static constant Cesium.BlendFunction.ONE_MINUS_CONSTANT_COLOR : Number
Scene/BlendFunction.js 103

The blend factor is one minus the constant color.

Default Value: `WebGLConstants.ONE_MINUS_CONSTANT_COLOR`

#### static constant Cesium.BlendFunction.ONE_MINUS_DESTINATION_ALPHA : Number
Scene/BlendFunction.js 87

The blend factor is one minus the destination alpha.

Default Value: `WebGLConstants.ONE_MINUS_DST_ALPHA`

#### static constant Cesium.BlendFunction.ONE_MINUS_DESTINATION_COLOR : Number
Scene/BlendFunction.js 55

The blend factor is one minus the destination color.

Default Value: `WebGLConstants.ONE_MINUS_DST_COLOR`

#### static constant Cesium.BlendFunction.ONE_MINUS_SOURCE_ALPHA : Number
Scene/BlendFunction.js 71

The blend factor is one minus the source alpha.

Default Value: `WebGLConstants.ONE_MINUS_SRC_ALPHA`

#### static constant Cesium.BlendFunction.ONE_MINUS_SOURCE_COLOR : Number
Scene/BlendFunction.js 39

The blend factor is one minus the source color.

Default Value: `WebGLConstants.ONE_MINUS_SRC_COLOR`

#### static constant Cesium.BlendFunction.SOURCE_ALPHA : Number
Scene/BlendFunction.js 63

The blend factor is the source alpha.

Default Value: `WebGLConstants.SRC_ALPHA`

#### static constant Cesium.BlendFunction.SOURCE_ALPHA_SATURATE : Number
Scene/BlendFunction.js 127

The blend factor is the saturated source alpha.

Default Value: `WebGLConstants.SRC_ALPHA_SATURATE`

#### static constant Cesium.BlendFunction.SOURCE_COLOR : Number
Scene/BlendFunction.js 31

The blend factor is the source color.

Default Value: `WebGLConstants.SRC_COLOR`

#### static constant Cesium.BlendFunction.ZERO : Number
Scene/BlendFunction.js 15

The blend factor is zero.

Default Value: `WebGLConstants.ZERO`