Cull command in ShaderLab reference

Sets which polygons the GPU should cull, based on the direction that they are facing relative to the cameraA component which creates an image of a particular viewpoint in your scene. The output is either drawn to the screen or captured as a texture. More info
See in Glossary.

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
Cull	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
`Cull <state>`	`Cull Back`	Sets which polygons the GPU should cull, based on the direction that they face relative to the camera.

Parameters

Parameter	Value	Function
state	`Back`	Cull polygons that face away from the camera. This is called back-face culling. This is the default value.
	`Front`	Cull polygons that face towards the camera. This is called front-face culling. Use this for turning geometry inside-out.
	`Off`	Do not cull polygons based on the direction that they face. Use this for special effects, such as transparent objects or double-sided walls.