Scene Color Node

Description

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

The behavior of the Scene Color node isn't defined globally. The executed HLSL code for the Scene Color node is defined per Render Pipeline, and different Render Pipelines can produce different results. Custom Render Pipelines that wish to support the Scene Color node need to explicitly define the behavior for it. If the behavior is undefined, the Scene Color node returns 0 (black).

In the Universal Render Pipeline the Scene Color node returns the value of the Camera Opaque Texture. Refer to the Universal Render Pipeline for more documentation on this feature. The contents of this texture are only available for Transparent objects. Set the Surface Type dropdown on the Graph Settings tab of the Graph Inspector to Transparent to receive the correct values from this node.

Note

You can only use the Scene Color node in the Fragment Shader Stage.

Supported Unity render pipelines

The following table indicates which render pipelines support the Scene Color node. When used with unsupported render pipelines, the Scene Color node returns 0 (black).

Pipeline	Supported
Built-in Render Pipeline	No
Universal Render Pipeline	Yes
High Definition Render Pipeline	Yes

Ports

Name	Direction	Type	Binding	Description
UV	Input	Vector 4	Screen Position	Normalized screen coordinates
Out	Output	Vector 3	None	Output value

Generated Code Example

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

void Unity_SceneColor_float(float4 UV, out float3 Out)
{
    Out = SHADERGRAPH_SAMPLE_SCENE_COLOR(UV);
}