Re: Weird glass - Help!

Date : Thu, 11 May 2006 14:23:53 +0930
To : XSI(at)Softimage.COM
From : benp <benp(at)rsp.com.au>
Subject : Re: Weird glass - Help!
i think (years ago now) i used a frontback with two rafraction nodes. Use the ior value  you expect to use for the front swithc and 1/ior for the back switch to reset it.
You don't have to use 1/ior. You can of course use this knob for even more NPR control.

Adrian Lopez wrote:
We've tried adjusting the ray depth, on reflection and refraction, all the way up to 10.  No joy.  We ran across a post by Bernard Lebel about a "backface refraction bug" that requires the use of a frontback node to work around.  Anyone know about this?

The image out the window is just a placeholder poly, paul.. thanks :)

Adrian

On 5/10/06, porl <paulp(at)al.com.au > wrote:
Ray depth?

Looks like you've got bigger fish to solve with that bizarre perspective out the window...

Adrian Lopez wrote:
We've been working on a kitchen scene for the last few days.  Obviously, glass objects will be needed, but we ran into a strange problem that we juat cant wrap our heads around.  We cant seem to render a transparent glass!  This is CG 101 stuff, but for some reason, XSI insists on rendering the opposing polys as opaque even though they're transparent.  We've used the LGlass shader, as well as created our own networks to try and fingure out whats going on. 

We're on a tight deadline, and we really dont need this right now.. in anyone can tell us where we're going wrong, it would be appreciated.

Adrian L.




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