How to get meshes world positions into a post pass?

Questions
1

I have a scene where I need to pass all of the meshes world positions into a post pass.

To do this I made an rtt and have it rendering all the meshes, I then make sure the material for all the meshes display their vPositionW.xyz and their color. The rtt is set to a float texture but for some reason this seems to not work.

Is there a better way to get the positions to the post pass?

2

Nevermind it did work, there was something weird with the timing of my textures being bound.

3

fwiw, you can query the scene anyway you want, then add the resulting meshes to the renderlist of the postprocess. idk if that works for what you’re trying to do though