Glass not letting light through

[Arnold Grove]

I have a small room with a window...and in the larger room my camera is amied at window w/ glass. I have a vray sphere light in the small room. While tweaking the small light and taking test renders all of the sudden the glass insnt transparent anymore. But I can clearly see the glass mat transparent in my viewport.

 

I was doing test renders w/ no GI. Ive checked every setting I can. I hid the glass objects...a double pane with a 1' space between them....and then I can see light so its something wth my glass object.

 

Im MIFFED!! and thoughts? thanks so much, AG

[magnuscarta]

I've had this same problem before in some of my models. I have no idea what causes it to happen in some and not others. The solution is to change your material to a standard and the put a Vraymap in your relfection and refration/opacity slots with settings on the vraymap set accordingly (either reflect or refract)

 

Hope this helps

[Joel182]

Hi

 

If you're using the Vray Material, under the Refraction section

Check affect shadows and you should have direct light spilling

in now.

( if I've understood you'r question ) If not let me know!

 

Hope this helps

 

Joel

[chuck]

Do you have "affect shadows" checked under the Vray material's refraction parameters?

 

Chuck

[Victor Erthal]

did you check "affect shadows" option on the refraction area of the v-ray material?

[Mechadus]

Indeed, Affect Shadows, and Visible to GI (in the Vray object properties) should be unchecked to allow glass to let as much light thru as possible. (Unchecking visible to GI will disable Caustics btw)

 

-Nick

[Dave Buchhofer]

Depending on what version you are using, older versions had a problem where transparent materials used in multi sub object materials wouldn't allow shadows to cast through.

 

Cheers.

[Kyle]

Seen as it hasn't been mentioned before I thought I would ask....Did you have "affect shadows" checked under the Vray material's refraction parameters?

[YOHKOH]

Try this.

 

Go to the material editor and under Refraction, Make sure "affect shadows" is checked.

 

Just a thought!

[Nic H]

I had this problem a while back as well and solved it by making sure 'affect shadows' was ticked.

[mattclinch]

'affect shadows' = checked.

[Joel182]

Lol

 

Guys I think he gets the idea of trying the affect shadows check box!

[Arnold Grove]

Do I need to check 'affect shaodws' ?

 

just kidding

 

 

 

thanks guys. Yes affect shadows was checked and it WAS part of a multi sub object mat...I was using the glass mat from the evermotion interoir 3..a bathroom with rocks and glass.

 

Ive since removed it from multi sub and I am now getting it to work. Funny...it comes and goes. I have a big scene with over a million polys...my refresh is fine,,,but Im wondering if I have poly erros in my models....because IES lights were givng me the weird 'shards' of shadows.

 

Ill try to get some pis up today. Ive found as my scene has grown Ive had a few issues appear.

 

thanks guys