How to see object through collision?

Unity Engine
1

Hi,how can i make that camera sees object through collision? Like in portal 2 game,where you can see portals through collision/walls. I want to see that object through collision a bit foggy not 100% clean,is it possible,please help? Thanks.

P.S. If any collision stands in camera way,then i can see it.

2

you mean you want to be able to see an outline of an object even if there is something in the way? that kind of thing?

3

Im not quite sure what you are trying to do but maybe rendertexture is the right thing, though its pro-only.

4

Yes,exactly,but how?

5

Shaders and render queue
if you change the queue of an object to a higher number, it will be drawn after (ontop of) anyting else (assuming its not culled)

6

I dont understand your idea.