Light through glass

V-Ray V-Ray for 3ds Max Issues
1

Hi, I would like to know how to make exterior vray sun light, to be seen in the interior, I mean to go through glass and iluminate the interior.

I checked affect alpha and affect shadows, but have no results

Casa 3.jpg
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2

If you take a look at the garage the problem doesnt seem to be the glass, but shadows generally not beeing lit.

Regards,
Thorsten

3

Using Gamma 2.2 might help brighten up interior shadows too.

4

Are you using secondary bounce even? Turning on them will help too as well as making the windows more transparent.

5

If your interior is dark I don’t think it will show up too well…

What is your transparency setting?

6

Another thing you may want to try to ascertain the light lighting the interior is to re-locate the light above your camera (a situation where in the light is behind the camera). Although this is not a good idea to light any scene but just to make sure thing are going right.

Once confirmed increase your secondary bounce and things should workout.

7

Lower your sun shadow bias btw, seem that is producing some artifacts in your render.

8

Making the glass a seperate object and turning all it’s GI parameters off in the Vray Properties helps too with Dark Glass. Also putting a vray light ( Flat) inside aligned to the window and makign it a skylight portal can help as well.

9

Thanks a lot guys, every suggestion worked with getting the sunlight through glass, mostly the one in which I made the glass of the window a separate object and excluded it from GI parameters and from direct target light shadow casting

10

All you needed to do is tick affect shadows on your vray material!