README.md

Fullscreen blit HDRP

This project demonstrates how to create a Custom Pass in Unity's High Definition Render Pipeline (HDRP) that uses a Compute Shader to process and render a texture on the camera's output in real-time.

How to use

1. Create a GameObject in your scene.
2. Add a Custom Pass Volume component to the GameObject:
   • Menu path: GameObject > Volume > Custom Pass Volume.
3. Enable “Is Global” on the Custom Pass Volume if you want it to affect all cameras.
4. Add the MyComputeShaderPass.cs script as a Custom Pass in the Custom Pass Volume’s list.
5. In the Inspector, assign your Compute Shader to the computeShader field.
6. Run the scene — the compute shader will process and render to the camera output in real-time.

Notes

• The RenderTexture is created and resized automatically based on the camera’s current resolution.

• The script uses ctx.hdCamera.camera to access the correct Camera instance during rendering.

• You can enable or disable the writing of the processed texture using the enableWriting boolean.

• Make sure your compute shader has a kernel named CSMain and a RWTexture2D named Result.