AlphaToMask command in ShaderLab reference

Enables or disables alpha-to-coverage mode on the GPU.

Render pipeline compatibility

Feature name	Universal Render PipelineA series of operations that take the contents of a Scene, and displays them on a screen. Unity lets you choose from pre-built render pipelines, or write your own. More info See in Glossary (URP)	High Definition Render Pipeline (HDRP)	Custom SRP	Built-in Render Pipeline
AlphaToMask	Yes	Yes	Yes	Yes

Syntax

This command makes a change to the render state. Use it in a Pass block to set the render state for that Pass, or use it in a SubShader block to set the render state for all Passes in that SubShader.

Signature	Example syntax	Function
`AlphaToMask <state>`	`AlphaToMask Off`	Enables or disables alpha-to-coverage mode.

Parameters

Parameter	Value	Function
state	`On`	Enables alpha-to-coverage mode.
	`Off`	Disables alpha-to-coverage mode.

Additional resources

Reduce aliasing with AlphaToMask mode

GPU render state commands in ShaderLab reference

Blend command in ShaderLab reference