Glass/reflections/alpha channel ?

V-Ray for 3ds Max V-Ray for 3ds Max :: General
1

Hope somebody - who is a bit more in to rendering than me - can explain a little thing for me :

I am used to do renderings of buildings (exterior and interior !). My question is as follows…

When rendering interiors with glass (with reflection/refraction) I used to place a “stage” on the outside of my building - with a bitmap of the sorrounding area to give it a more realistic touch. But now - when using Vray - I use the invoronment multiplier a lot and this seems to make my “outdoor” bitmap VERY bright. Is there a way to render the scene with the glass and its reflections WITHOUT the outdoor bitmap - and then place the picture in the scene later in photoshop ? I normally render as tiff and then use the alpha channel in photoshop - BUT - then I don´t get my reflections in the glass with me !!!

Reading the above I know that it is VERY badly explained :sweat_smile: - but I hope somebody understands what I´m trying to say :wink:

In advance - thanks for your time and be good !

- rolnik

2

Play with the Generate GI & Receive GI parameters in the VRAY Properties for your background object. That will allow you to get the brightness of your background down to the desired level.

3

:lol: Thanx for the tip !

But where do I set VRAY properties for a specific object ?

I´ll try and figure it out my self - but if you happen to drop by again and have time then please tell me !

Have a good day !

4

I have the VRay Properties configured into my Right Click menu.

You can assign it either to a shortcut, tool bar or quad menu from the Customize User Interface panel. Group=Main UI and Category=VRay. This was introduced in VRay 1.09.03j.

Alternatively, if you place your background material into a VRayMtlWrapper, you can set the same properties there.

5

Thanx for the help :smile: !!!