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VRay Dome Light Weird
show user profile  adammichell
Hey Guys

Just doing a bit of testing with some HDRIs. So the first image is a HDRI placed in the environment slot, and the second image is the same HDRI used with a Dome Light.

Any ideas why the glass bottle turns black? Been playing around for a while now and I'm out of ideas.

read 882 times
3/14/2012 1:49:47 AM (last edit: 3/14/2012 1:49:47 AM)
show user profile  donvella
Put your HDRI in your dome into your
Vray :: Environment Reflection/refraction environment override tab.



read 873 times
3/14/2012 3:02:11 AM (last edit: 3/14/2012 3:02:11 AM)
show user profile  GirishDJoshi
If you see there is a little black in the earlier render as well, edge of the bottle.

If you are using dome light + hdri

Vray material > hdri > access the hdri > spherical + render multiplier > say around 40 (eg.) > instance it to texture in the dome light > instance it to vray environment map slot in render setup

dome light should be 1 if you have a good hdri, subs should be around 30 do reduce samples

you might want to check the material of the bottle as well.


too much detailed reply :P hope it what you are asking for.. :))


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read 869 times
3/14/2012 3:49:35 AM (last edit: 3/14/2012 3:49:35 AM)
show user profile  donvella
No point putting it in your environment slot if you have a dome, its one or the other. Then you just place it in the ref/refrac slot so anything with reflections beyond the immediate area will reflect the dome instaed of nothing.



read 865 times
3/14/2012 4:42:23 AM (last edit: 3/14/2012 4:42:23 AM)
show user profile  adammichell
Cheers James that worked a treat!

Any ideas why that does that?
read 847 times
3/14/2012 10:20:41 AM (last edit: 3/14/2012 10:20:41 AM)
show user profile  donvella
anything with reflections beyond the immediate area will reflect the dome instaed of nothing. (nothing being the black you see in the reflection)

edit:

Sorry, thats a bit garbled. Anything with reflections beyond the immediate area will reflect black instaed of the dome because its just being used as lighting, its not going to reflect light as a texture. Your telling vray to use the HDRI in the ref/refra slot because now it has something to reference. However, when you use the environment slot, its telling it to use it as GI and the reflection, so you dont have to worry about putting it there too, I prefer your first method because its quick, clean and good for most quick jobs. Your second method is good if you know vray pretty well and can tinker with some render settings to get the look you need, or are just interested. Hope that makes more sense.



read 841 times
3/14/2012 11:08:37 AM (last edit: 3/14/2012 11:14:36 AM)
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