Unity Engine

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Unity Engine

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Enable Rendering Layers for Lights in URP

Enable and use Rendering Layers for Lights, change the name of Rendering Layers, and use Custom Shadow Layers to improve shadows.

읽는 시간 3분

최근 업데이트: 한 달 전

To enable Rendering Layers for Lights in your project:

In the URP asset, in the Lighting section, open the More (⋮) menu and select Advanced Properties.
In the URP asset, in the Lighting section, select Use Rendering Layers.

How to edit Rendering Layer names

To edit the names of Rendering Layers:

Go to
Project Settings
?
> Tags and Layers.
Edit the Rendering Layer names in the Rendering Layers section.

How to use Rendering Layers with Lights

This section describes how to configure the following application example:

The scene contains two Point Lights (marked
```
A
```
and
```
B
```
in the illustration) and two Sphere GameObjects (
```
C
```
and
```
D
```
in the illustration).
Light
```
A
```
affects Sphere
```
D
```
, but not Sphere
```
C
```
. Light
```
B
```
affects Sphere
```
C
```
, but not Sphere
```
D
```
.

The following illustration shows the example:

Light A affects Sphere D, but not Sphere C. Light B affects Sphere C, but not Sphere D.

Light
A
affects Sphere
D
, but not Sphere
C
. Light
B
affects Sphere
C
, but not Sphere
D
.

To implement the example:

Enable Rendering Layers in your project.
Create two Point Lights (call them
```
A
```
, and
```
B
```
) and two Spheres (call them
```
C
```
, and
```
D
```
). Position the objects so that both Spheres are within the emission range of Lights.
Go to Project Settings > Tags and Layers. Rename Rendering Layer 1 to
```
Red
```
, and Layer 2 to
```
Green
```
.
Select Light
```
A
```
, change its color to green. Select Light
```
B
```
, change its color to red. With this setup, both Lights affect both Spheres.
Both Lights affect both Spheres.
Make the following settings on Lights and Spheres:
Light
```
A
```
: in the property Light > Rendering > Rendering Layers, clear all options, and select
```
Green
```
.
Light
```
B
```
: in the property Light > Rendering > Rendering Layers, clear all options, and select
```
Red
```
.
Sphere
```
C
```
: in the property Mesh Renderer > Additional Settings > Rendering Layer Mask, select all options, clear
```
Green
```
.
Sphere
```
D
```
: in the property Mesh Renderer > Additional Settings > Rendering Layer Mask, select all options, clear
```
Red
```
.
Now Point Light
```
A
```
affects Sphere
```
D
```
, but not Sphere
```
C
```
. Point Light
```
B
```
affects Sphere
```
C
```
, but not Sphere
```
D
```
.
Point Light A affects Sphere D, but not Sphere C. Point Light B affects Sphere C, but not Sphere D.

How to use Custom Shadow Layers

In the illustration above, Light

does not affect Sphere

, and the Sphere does not cast shadow from Light

.

The Custom Shadow Layers property lets you configure the scene so that Sphere

casts the shadow from Light

.

Select Light
```
A
```
.
In Light > Shadows, select the Custom Shadow Layers property. Unity shows the Layer property.
In the Layer property, select the Rendering Layer that Sphere C belongs to.

Now Light

does not affect Sphere

, but Sphere

casts shadow from Light

.

The following illustrations show the scene with the Custom Shadow Layers property off and on.

Custom Shadow Layers property off

Custom Shadow Layers property on

Additional resources

```
RenderingLayerMask
```
API