Subject:
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Re: Steampunk diorama
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Newsgroups:
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lugnet.space
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Date:
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Sat, 17 Dec 2005 16:50:38 GMT
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Viewed:
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3702 times
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In lugnet.space, Jason S. Mantor wrote:
> OK. Now that you've posted, those you have to tell us what you did to
> get that "gritty" effect!
>
> BTW, Cool, model Tim : )
There are two ways I achieve a "gritty" effect.
The first and easiest is to open the render in Photoshop or GIMP (which is free
software, and wonderful btw--everyone should download a copy), then add a new
layer and fill it with greyscale noise using a noise generation filter. In GIMP,
make your noise greyscale by choosing Tools->Color Tools->Hue\Saturation, and
setting saturation to -100. Adjust your layer blending options and presto!
The alternate method, if you don't have access to post-processing software for
some reason (such as: you are participating in the internet raytracing
competition and you're not allowed to use it), is to create a virtual camera
"gel" or filter and place it directly in front of the camera in POV-Ray. Assign
it a bitmap of noise, or generate one using a pigment such as perhaps cells?...
If you're POV-friendly you can write a simple piece of code that will cause the
noisy rectangle to track with the camera. There's a tiny bit of geometry
involved, but it won't hurt you.
If anyone wants to share their POV files, I'd have fun remixing their scenes in
this fashion...
Adios amigos
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Message is in Reply To:
 | | Re: Steampunk diorama
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| OK. Now that you've posted, those you have to tell us what you did to get that "gritty" effect! BTW, Cool, model Tim : ) (...) (19 years ago, 17-Dec-05, to lugnet.space)
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