Godot Version
4.3
Question
(question may be moderately cursed)
Very specific problem with the new Compositor feature in Godot 4.3. I was working on a post-processing effect in 4.2 that used the depth texture in a shader and wanted to apply it to the Compositor, but I ran into a problem.
First, I used the example project here and added the depth texture by changing a few lines in the compute shader. This is the shader using the depth texture:
So that worked. I went to apply it to the test project I had doing shader stuff in 4.2 and copy/pasted the modified demo code, and ran into a problem. Trying the original demo shader works fine, but adding the depth texture gives the error:
“Image (binding: 1, index 0) needs the TEXTURE_USAGE_STORAGE_BIT usage flag set in order to be used as uniform.”
Looking into the documentation like here, it’s possible to set textures to be usable in shaders like this, but I can’t figure out how to do it since it requires this method which asks for strings and I don’t know what to set them to.
I don’t get why it would work in the example project but not in mine, since it’s not in any init scripts in the former. Maybe a project created in 4.3 has some under-the-hood changes on startup compared to 4.2?
Help would be appreciated. I would post the whole compute shader code, but it’s very very long and mostly the same as the demo, so this is a bit:
