Rendering help

[superwes88]

I'm getting to know my way around blender pretty well now, but there's a few things I still couldn't figure out myself:

the first thing is how do I exclude objects from being shown in other objects reflections? Cause I use a HDRI object as the background but I don't want to show it in the background of the render, so I built a wall around the car but the wall shouldn't be seen in the reflections of the car i'm rendering.

more questions will probably follow..

[tom120934]

Sorry for being late to response. I answer anyways, as it could be of interest to any future reader.

Set another material for the object you want to be reflected but invisible by itself if not reflected. For this material, under the "Material" panel, there is a "Env" button : check it, and it will work.

If of any interest, you can set an HDRI in background in another way. I will post in a few days a tutorial I'm writing on it. Feel free to search around the net to find out tutorials.

PS : You can do the exact opposite : let the "Env" button unchecked, but uncheck the "Traceable" : your object will be visible but never reflected.