Qt 5.13 | Qt 3D | QML Types | AlphaCoverage QML Type

Qt 5.13.2 Reference Documentation

# AlphaCoverage QML Type

Enable alpha-to-coverage multisampling mode. More...

Import Statement: | import Qt3D.Render 2.13
Since: | Qt 5.7
Inherits: | RenderState

- List of all members, including inherited members

## Detailed Description

An AlphaCoverage type enables alpha-to-coverage multisampling mode. When enabled, the fragment alpha value is used as a coverage for the sample and combined with fragment coverage value. AlphaCoverage does nothing if multisampling is disabled. Alpha-to-coverage is most useful when order independent blending is required, for example when rendering leaves, grass and other rich vegetation.

It can be added to a RenderPass:

      RenderPass {
          shaderProgram: ShaderProgram {
              // ...
          }
          renderStates: [
              AlphaCoverage {},
              MultiSampleAntiAliasing {}
          ]
      }

Or to a RenderStateSet:

      RenderStateSet {
          renderStates: [
              AlphaCoverage {},
              MultiSampleAntiAliasing {}
          ]
      }

See also MultiSampleAntiAliasing.