Newbie light/shadow question

[malmond]

Hi everybody...new member here. I've been lurking for a while and toying with V-Ray for the past two days. I'm hooked.
I hope my question isn't dumb and please forgive me if I don't use the right terminology as I'm still trying to learn all the ins and outs.
I ran a test model and while I like GI I wanted to use sharp shadows (not as sharp as omnis though) to simulate the SU sun, say...through a window. While at the start of the rendering I can see the effect I want, towards the end they get so soft they almost disappear. I'm wondering how to attain the effect I see in the start at the final image.
Thanks for everything this site os full of great info.

malmond

Test w/ GI


Test with shadows...then no shadows

[dcauldwell_cg]

Re: Newbie light/shadow question

malmond

It may be that the glazing is somehow stopping the light coming thro. If you remove the glass from the windows it should work ok.

However, if I were you, I would use the real sun to achieve your effect, setting the sun size multiplier to 1 for sharp shadows or 3+ for softer shadows. You will need to use the physical camera.

(I also suggest that you reduce the bump on the floor)

Good Luck

David

[malmond]

Re: Newbie light/shadow question

Thanks for the quick reply. You're right about the floor. As it turns out it was an experiment with the bump(ing) I did the brick also (albeit reversed) I figured it wasn't bad for a first try after only a couple of hours of playing.
I'll definetly try the sun suggestion. One more question though...where (under the Options) is the sun size multiplier? I can't find it :'(
Thanks again for your help.

malmond

[bones_cg]

Re: Newbie light/shadow question

Environment - (GI)sky light - maps - Common (sky) - sun (default).
It my be problem with to much secondary bounces make it 2 or 1! because if bounces is set up to many than light bounces produce great quantity of light from ceiling and floor and makes sunlight and shadows not so sharp! I hope that will help you!
Sorry for English! :-X

[malmond]

Re: Newbie light/shadow question

No apology needed bones. Your reply was clear and very much useful. Thanks for your help. Both of you.