This guide explains how to integrate HauntedPSX into RHT from the following link

https://github.com/pastasfuture/com.hauntedpsx.render-pipelines.psx

First, install HauntedPSX as explained in their installation guide (GIT URL method recommended)

At this point, you should’ve added this line to your manifest.json file

"com.hauntedpsx.render-pipelines.psx":"[<https://github.com/pastasfuture/com.hauntedpsx.render-pipelines.psx.git>](<https://github.com/pastasfuture/com.hauntedpsx.render-pipelines.psx.git>)"

Once installed, from the top bar, select “HauntedPS1→Create HauntedPS1 Render Pipeline Asset”

On your project settings, assign the created pipeline asset

Most of the stuff in the SampleScene will become invisible. To start with, change the shader of the materials Grid and Grid2 to PSX→PSXLit

Any object in the project (such as Monster, Doors, Items..) will need its material shader updated to work correctly in game or this will cause weird overlapping issues

Add a volume to your scene and you should be good to go.