shadPS4/documents/patching-shader.md

Install Vulkan SDK and *ensure spirv-cross and glslc are in PATH*.

1. Enable dumpShaders in config.toml

2. Run spirv-cross -V fs_0x000000.spv --output fs_0x000000.glsl to decompile the SPIR-V IR to GLSL.

3. Edit the GLSL file as you wish

4. To compile back to SPIR-V, run (change the -fshader-stage to correct stage): glslc --target-env=vulkan1.3 --target-spv=spv1.6 -fshader-stage=frag fs_0x000000.glsl -o fs_0x000000.spv

5. Put the updated .spv file to shader/patch folder with the same name as the original shader

6. Enable patchShaders in config.toml