UIOpacity Component References

The UIOpacity Component records a transparency modification flag for the node, which is used to influence all the render nodes inside its sub tree. Normally it's used on a non render nodes, otherwise its opacity will be multiplied with the render component's opacity. The render nodes can set transparency individually by setting the alpha channel of color.

Note: this component is only functional when its root node have Canvas component or RenderRoot2D component.

The method of use is as follows:

ui-opacity

You can also set transparency by code. Example:

const opacityComp = this.getComponent(UIOpacity);
opacityComp.opacity = 157;

To use UIOpacity, please refer to the UIOpacity API documentation and the Opacity scene of the test-cases-3d project.

UIOpacity Properties

Property Function Description
Opacity transparency

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