Scene Depth Node

Description

Provides access to the current Camera's depth buffer using input UV, which is expected to be normalized screen coordinates.

Note: Depth buffer access requires depth buffer to be enabled on the active Render Pipeline. This process is different per Render Pipeline. It is recommended you read the documentation of your active Render Pipeline for information on enabling the depth buffer. If the depth buffer is unavailable this Node will return mid grey.

Note: The executed HLSL code for this Node is defined per Render Pipeline, and different Render Pipelines may produce different results. Custom Render Pipelines that wish to support this Node will also need to explicitly define the behaviour for it. If undefined this Node will return 1 (white).

NOTE: This Node can only be used in the Fragment Shader Stage.

Unity Pipelines Supported

• HD Render Pipeline
• Lightweight Render Pipeline

Ports

Name	Direction	Type	Binding	Description
UV	Input	Vector 4	Screen Position	Normalized screen coordinates
Out	Output	Vector 1	None	Output value

Depth Sampling modes

Name	Description
Linear01	Linear depth value between 0 and 1
Raw	Raw depth value
Eye	Depth converted to eye space units

Generated Code Example

The following example code represents one possible outcome of this node.

void Unity_SceneDepth_Raw_float(float4 UV, out float Out)
{
    Out = SHADERGRAPH_SAMPLE_SCENE_DEPTH(UV);
}