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[vray] - Overlapping refractive objects
show user profile  9krausec
I have about 100 spheres of gradually diminishing scale following a path to resemble a rolling water droplet. All of the overlapping objects however turn my little water droplet into a black piece of shit.

Anything I can do with Vray to render out overlapping refractive objects so that the internal faces don't affect the render (make it a black blob)?

Thanks in advance.

Edit: Just doing it with a particle blob mesh now, but I'm still curious if there is a solution for this.




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read 258 times
3/13/2016 11:03:49 PM (last edit: 3/13/2016 11:23:53 PM)
show user profile  soontekk
Been playing with overlapping refractive and reflective objects as well and it has been a nightmare. Black seems to pop up everywhere as well and alpha's are opaque (vray)

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read 252 times
3/14/2016 9:03:40 AM (last edit: 3/14/2016 9:03:40 AM)
show user profile  ijzerman
Make sure to set your max depth in the shader correctly along with unticking the override depth in the render settings. Also set affect channels in your shader to all channels for the refractive part.
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Pushing buttons since "86
read 249 times
3/14/2016 11:00:25 AM (last edit: 3/14/2016 11:00:25 AM)
show user profile  ijzerman
Also, for refraction to work you need a actual volume. Also check double sided ness in the shader properties.
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Pushing buttons since "86
read 248 times
3/14/2016 11:02:08 AM (last edit: 3/14/2016 11:02:08 AM)
show user profile  Error404
Yep, you'll need to increase the max reflect/refract depth in the shader. By default it's only 5 bounces.

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read 245 times
3/14/2016 5:02:43 PM (last edit: 3/14/2016 5:02:43 PM)
show user profile  9krausec
ehh. I moved it up to 20 when I was testing, guess that wasn't even enough. Probably not the best solution to make a rolling droplet..

Sad story. I programmed this solution in 4 hours, hit the refraction problem and found another solution using nParticles (Maya particles) which yielded better results in 10 minutes.

I hate when that happens. Thanks guys.




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read 245 times
3/14/2016 5:08:54 PM (last edit: 3/14/2016 5:08:54 PM)
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