Rendering layers

Enable Rendering Layers in URP Settings:

• Go to Universal Renderer Data asset.
• Ensure that Use Rendering Layers are enabled in the Renderer Features → Decal settings.

Set Rendering Layers on Decal Object:

• Select the 3D TextMeshPro object with the Text Decal script attached.
• In the Inspector, locate the material settings, in the Rendering Layers dropdown assign the desired rendering layer(s) for the decal.

Assign Rendering Layers to Target Surfaces:

• Select the objects in your scene that you want the decal to project onto.
• In the Inspector, locate the Mesh Renderer → Additional Settings → Rendering Layer Mask dropdown.
• Ensure these objects are assigned to the same rendering layer(s) as the decal.