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Introduction

Creating a new project with LWRP

Upgrading an existing project to use LWRP

Conclusion

Introduction to LWRP - 2019.1

In this tutorial, you will learn how to create a new LWRP project, as well as convert a project to use the LWRP.

Games

Film

Automotive

Render-pipelines.lightweight

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If you are using Unity 2018.3, click here. If you are using Unity 2019.2, click here. If you are using Unity 2019.3 or above, click here.

The goal of the Lightweight Rendering Pipeline (LWRP) is to provide optimized performance for developers targeting a broad range of platforms, VR, and games with limited realtime lighting needs. It does this by making some tradeoffs with regard to lighting and shading.  

The LWRP performs single-pass forward rendering with one real-time shadow light and light culling per-object. By comparison, the legacy pipeline of forwarding rendering performs an additional pass per pixel light within range. This means the LWRP will result in fewer draw calls. It’s also supported by the Shader Graph tool, which provides additional benefits for shader authoring workflow.  

Figure 01: LWRP Lighting Sample

Figure 02: Sample scene using the Lightweight Rendering Pipeline

1. Open Unity Hub and create a new project.

2. In the new window, select the Lightweight RP Template (Figure 03). 

3. Name your project and set the location for the project.

Once that’s done, your new Unity Project with the LWRP will be ready to go.

Figure 03: Creating a new project with LWRP

To upgrade an existing project, you must first download the LWRP using the Unity Package Manager.

1. Go to the Window > Package Manager to open the Package Manager (Figure 04). 

2. Make sure All Packages is selected in the dropdown on the top left.

3. Find “Lightweight RP” in the list and select it.

After the package has been installed from the Package Manager, you have to add the LWRP Asset to the Scriptable Render Pipeline Graphics settings field.

1. Open the Project settings window by clicking Edit > Project Settings.

2. Select Player settings on the left side of the new window.

3.  Set Color Space to Linear in Other Settings section of Player Settings. (Figure 05) 

4. Create a pipeline asset by selecting the Asset dropdown and Create > Rendering > Lightweight Pipeline Asset.

5. Open the Project settings window by clicking Edit > Project Settings.

6. Select Graphic settings on the left side of the new window.

7.  In the Graphics Inspector, click the circle dial and select the LightweightPipelineAsset. (Figure 06) 

 Now your existing project will be able to use the Lightweight Render Pipeline. 

Figure 04: Package Manager Window

Figure 05: Setting Color Space to Linear in Player Settings

Figure 06: Placing the LightweightAsset into Scriptable Render Pipeline Settings

LWRP establishes standardization by bringing in restrictions and disabling features that wouldn’t be supported on lower-end devices. This allows developers to worry less about how to optimize a project and to focus more on developing projects for the wider audience. 

Introduction to LWRP - 2019.1

1. Introduction

2. Creating a new project with LWRP

3. Upgrading an existing project to use LWRP

4. Conclusion

Complete this tutorial