Can I disable post processing for 3D widgets?

Hello
what should i choose in here?

image

The stencil method seemed to not work for me, i changed it a little

I got that post process material setup working in my project but then when i change for example the value of exposure in the postprocess, the stencil object also gets affected. Isn’t scenetexture:postprocessinput0 supposed to contain the image without any post processing?

Would it be possible to share the project files?