[Radiance-general] artifact while rendering glass in tmesh solved?

[Greg Ward]

I just checked -- the BTRDfunc type has the same perturbation of transmitted rays.  The newer BSDF type does not, but it's very difficult to get a clear image through a data-driven model.

-Greg

> From: Iebele Abel <iabel at iebele.nl>
> Date: February 19, 2012 6:25:07 AM PST
> 
> Hi Greg, 
> 
> Changing the file rt/glass.c as you described below fixed the artifact. Again, thanks a lot for your help. 
> 
> But now suppose I would not have changed rt/glass.c Your remark that a texture applied to an infinitely thin layer of glass should perturb transmitted rays (and in effect an applied texture will smooth the triangulation) did me think of using a BRTD material instead of glass. Maybe it is a stupid thought, but would it be possible to model glass using BRTD in such way that the transmitted component remains unaffected while the reflected component is smoothed by a texture? 
> 
> My best, 
> 
> Iebele