Converting your shaders

Shaders written for the Built-in Render Pipeline are not compatible with Universal Render Pipeline (URP) shaders. Unity renders objects with the default magenta error shader if they use Built-In Render Pipeline shaders.

Use the Render Pipeline Converter to convert any of Unity's built-in Built-In Render Pipeline materials and shaders to a URP material and shader. Refer to Shader mappings for more information.

Note: The Render Pipeline Converter makes irreversible changes to the project. Back up your project before the conversion.

If the preview thumbnails in the Project view are not shown correctly after the conversion, try right-clicking anywhere in the Project view and selecting Reimport All.

For SpeedTree Shaders, Unity does not re-generate Materials when you re-import them, unless you click the Generate Materials or Apply & Generate Materials button.

Custom shaders

You cannot upgrade Custom Unity shaders written for the Built-in Render Pipeline. Instead, custom shaders must be rewritten to work with URP or recreated in ShaderGraph. For an example of how to rewrite and upgrade a Built-In Render Pipeline custom shader to be compatible with URP, refer to Upgrade custom shaders for URP compatibility.

Any Materials in a scene that use a custom shader when you upgrade a project to use URP turn pink to indicate the Material no longer works. To fix this, upgrade or change the Material's shader to one that is compatible with URP.

Note: URP does not support Surface Shaders.

Shader mappings

The following table shows which URP shaders the Built-in Render Pipeline shaders convert to when you use the Render Pipeline Converter.

Unity built-in shader	Universal Render Pipeline shader
Standard	Universal Render Pipeline/Lit
Standard (Specular Setup)	Universal Render Pipeline/Lit
Standard Terrain	Universal Render Pipeline/Terrain/Lit
Particles/Standard Surface	Universal Render Pipeline/Particles/Lit
Particles/Standard Unlit	Universal Render Pipeline/Particles/Unlit
Mobile/Diffuse	Universal Render Pipeline/Simple Lit
Mobile/Bumped Specular	Universal Render Pipeline/Simple Lit
Mobile/Bumped Specular(1 Directional Light)	Universal Render Pipeline/Simple Lit
Mobile/Unlit (Supports Lightmap)	Universal Render Pipeline/Simple Lit
Mobile/VertexLit	Universal Render Pipeline/Simple Lit
Legacy Shaders/Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Bumped Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Bumped Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Self-Illumin/Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Self-Illumin/Bumped Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Self-Illumin/Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Self-Illumin/Bumped Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Bumped Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Bumped Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Cutout/Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Cutout/Specular	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Cutout/Bumped Diffuse	Universal Render Pipeline/Simple Lit
Legacy Shaders/Transparent/Cutout/Bumped Specular	Universal Render Pipeline/Simple Lit