POV-Ray : Newsgroups : povray.binaries.images : SSLT settings/issue : Re: SSLT settings/issue Server Time
8 Jul 2024 07:31:47 EDT (-0400)
  Re: SSLT settings/issue  
From: s day
Date: 2 Jun 2014 18:50:01
Message: <web.538cff823a9a4719facb37460@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Am 02.06.2014 19:07, schrieb s.day:
>
> > The ant is made of a few blobs (don't think they are the issue though).
>
> Blobs? Are you serious? That's one hot hell of an ant you have there!
> (No surprise it's about to combust ;-)) I'd have expected it to be some
> commercial mesh model.
>

Thanks, I guess it is actually 13 blobs, one for each leg, antennae and mandible
then the head and each section of the body. The eyes are just spheres and the
hairs are cones so not 100% a blob ant but close.

> > My fear is that it is just not enough samples..
>
> No, the samples are probably ok, they just affect how noisy the result is.

Ahh, that is good to know as now I have started using SSLT I seem to find images
without it a bit less interesting but did not want to have to increase the
samples too much due to lack of patience ;-)

>
> Are those perhaps transitions between multiple separate blob objects?
>

No, that section is made from a single blob, I did have some artifacts at one
point where the mandibles met the head with an earlier version but that has been
corrected with the latest mandibles (still need to do a bit of work on the
texture of these I think they are too shiny).

> Probably a major obstacle you're facing is that ants /are/ pretty
> translucent inside, it's mostly the exoskeleton that gives them their
> tint. Maybe layering a semi-transparent non-SSLT texture (or a
> semi-transparent SSLT texture with low translucency) over a
> high-translucency texture might do the trick.

Now I know it is not samples maybe I can lower them a bit and try some different
options/variations as it will be a bit faster, it seems increasing the
mm_per_unit helps to reduce the glow but getting it just right is the problem as
if I reduce it too much the effect is no longer as good.

Thanks again for responding your advice is always very helpful.

Sean


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