# BLENDMODE_ONE_MINUS_SRC1_ALPHA

Variable · category: Graphics

Source: https://github.com/playcanvas/engine/blob/f059dc005842f76e052cdf44d8370c8c7ec475ac/src/platform/graphics/constants.js#L144

Multiply all fragment components by one minus the alpha value of the secondary source fragment.
This can only be used when [GraphicsDevice#supportsDualSourceBlending](https://api.playcanvas.com/engine/classes/GraphicsDevice.md#supportsdualsourceblending) is true.

```ts
const BLENDMODE_ONE_MINUS_SRC1_ALPHA: 16 = 16
```