vray sky won't appear in render

[Guest nazcaLine]

that's it...i can see the vray sky in the light cache calculaum phase, and the irr map calc phase...but when it starts to render, it shows a white sky. why is it? i'm a newbie with vray sun/sky, so i'm a bit LOST in here...any help?

 

Please!!

 

Eduardo

[Ricardo Eloy]

Check "Affect background" under the Color Mapping tab.

[Guest nazcaLine]

what a shame...so simple...

well one more question...should i decrease the sun multiplier, increase the f-stop, or both?

 

Eduardo

 

right now i reduced the sun multiplier to 0.08

[Ricardo Eloy]

Well, I'd say one or the other. If you change the intensity multiplier, uncheck the exposure option in your camera. It makes the camera control the overall exposure, so you can use a "natural" sun intensity (1). If you change the intensity multiplier to a low value such as .08, you probably don't need the exposure control.

On the other hand, if you keep the original intensity multiplier, you can control the brightness of the resulting image using f-number, film ISO and shutter speed. There's a website (I can't recall the link) with an online exposure calculator that is really nice. I'll check my favs tomorrow and post it here.

[Guest nazcaLine]

thank you rick for your answers.

i have another problem here. recently checked a tut about this and it says that when i create a vray sun, it will prompt me to add a vray sky. but when i do this, i get no prompt. i have to add the sky manually. and, when i move the sun, the sky won't change.

what am i doing wrong??

 

Eduardo

[Ricardo Eloy]

Nothing. This only happens on VRay 1.5 RC2. Once you "upgrade" to RC3, you will be prompted.

[Guest nazcaLine]