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31 Jul 2024 16:25:34 EDT (-0400)
  Playing around with SSLT (Message 1 to 10 of 25)  
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From: P Brewer
Subject: Playing around with SSLT
Date: 25 Aug 2009 07:20:01
Message: <web.4a93c8dcf152c0084d658db50@news.povray.org>
I love this feature and can't wait for it to be fully implemented. Took my
inspiration from here:
http://news.povray.org/povray.binaries.images/thread/%3Cweb.47b1299720742c82ae42298f0@news.povray.org%3E/

Stanford 3D Scanning model


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From: clipka
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 07:55:18
Message: <4a93d126$1@news.povray.org>
Awesome!

Looks a lot more impressive than that poor candle I came up with :-D


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From: triple r
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 19:45:01
Message: <web.4a94769463e55f16bce6e7870@news.povray.org>
"P Brewer" <pbj### [at] wowwaycom> wrote:
> I love this feature and can't wait for it to be fully implemented. Took my
> inspiration from here:
>
http://news.povray.org/povray.binaries.images/thread/%3Cweb.47b1299720742c82ae42298f0@news.povray.org%3E/
>
> Stanford 3D Scanning model

Sweet!  Neat to see that implemented right in POV-Ray.  (Thanks by the way, even
though I haven't had a chance to try it out yet!)  Are the white speckles
texture or artifacts?  What was the rendering time?  I might recommend playing
around with the coloring and lighting just a little bit.  An opposing color for
the subsurface part can add some depth to it, and maybe a different lighting
angle wouldn't leave the middle so dark.  But I say that as if I have any
artistic sense, so take it with a grain of salt.  Neat nonetheless.

 - Ricky


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From: P Brewer
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 19:45:01
Message: <web.4a94776c63e55f164d658db50@news.povray.org>
FYI,

If anyone can't figure out how to convert the Stanford models, here is how I did
it.

Import to Meshlab (open source)
Quadric Edge Collapse Decimation (to lower mesh size)
Export to .obj
Import to Poseray (freeware?)
Export to Pov include file.

I couldn't figure out a valid way to get it to work for awhile. Glad I stumbled
on Meshlab.


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From: clipka
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 19:57:00
Message: <4a947a4c$1@news.povray.org>
triple_r schrieb:
 > Are the white speckles texture or artifacts?

I'd pretty much assume them to be artifacts.


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From: triple r
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 20:05:01
Message: <web.4a947b2863e55f16bce6e7870@news.povray.org>
"P Brewer" <pbj### [at] wowwaycom> wrote:
> FYI,
>
> If anyone can't figure out how to convert the Stanford models, here is how I did
> it.
>
> Import to Meshlab (open source)
> Quadric Edge Collapse Decimation (to lower mesh size)
> Export to .obj
> Import to Poseray (freeware?)
> Export to Pov include file.

Meshlab looks like a pretty useful program.  I'll have to take a look at that.
Just to provide options, here was my strategy:

Import into Blender
Export to .obj
Process with shell script
Export to mesh2

I'm trying to remember if I didn't need Wing3D in there somewhere for some
bizarre reason, but meshlab looks very interesting.  Thanks for suggesting it.

 - Ricky


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From: P Brewer
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 20:45:00
Message: <web.4a94852863e55f164d658db50@news.povray.org>
I just played with the render again, and the white specs are reflection
artifacts from the HDR background. It must be small triangles that are rotated
just right to pull a super bright spot from the background.

As far as Meshlab, it works with the huge .ply files very well. Imports in a few
seconds.

Render time was little over an hour on an i7 quad core.


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From: clipka
Subject: Re: Playing around with SSLT
Date: 25 Aug 2009 21:54:29
Message: <4a9495d5@news.povray.org>
P Brewer schrieb:
> As far as Meshlab, it works with the huge .ply files very well. Imports in a few
> seconds.

It crashes on me when trying to load Lucy (MeshLab v1.2.1 Windows 
binary, run on Windows XP Pro x64 Edition), about something like 60%-70% 
into the loading.


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From: clipka
Subject: Re: Playing around with SSLT
Date: 26 Aug 2009 03:37:31
Message: <4a94e63b@news.povray.org>
Now with proper handling for spotlights (and most other fancy classic 
lighting stuff).

The other Stanford dragon.

10 minutes rendering time on an i7 QuadCore.

Stay tuned for the next beta.


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From: clipka
Subject: Re: Playing around with SSLT
Date: 26 Aug 2009 03:53:17
Message: <4a94e9ed$1@news.povray.org>
triple_r schrieb:
> Meshlab looks like a pretty useful program.  I'll have to take a look at that.
> Just to provide options, here was my strategy:
> 
> Import into Blender
> Export to .obj
> Process with shell script
> Export to mesh2

I just found that PoseRay can apparently read .ply files, too. I'm just 
having it take a go at Lucy right now... will take some time though >_<


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