Hi, I have a cycles request:
Global AOV mode for the Shader Editor.
Global AOV mode for the shader editor lets you define an AOV for all objects in the scene. If any materials write to the same AOV, then the material will override the global aov for any objects using that material (a bit like css)
Saves having to manually add an AOV output node to all materials when you want all objects to appear in the rendered custom pass. This suggested functionality is also the only way to add a custom AOV if the scene uses linked materials.
It can already sort of be done with material overrides, but that would require rendering twice, which for large scenes can be time consuming regarding pre-render scene calculation. For example, complicated scenes may take up to 10mins per frame to calculate even with persistent data enabled if there are animated elements, and then only 30 seconds to actually render.