Subject:
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Re: Attention! Cut your rendering time in half!!
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Newsgroups:
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lugnet.cad.ray
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Date:
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Sun, 7 Sep 2003 20:44:44 GMT
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Viewed:
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1638 times
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In lugnet.cad.ray, Trevor Hewer wrote:
> Alright! Now this works with anything- radiosity included. It actually makes a
> very low count look like a very high count(just use Jeroen de Haan's
> radio_1.inc). You will need some kind of image editing software capable of
> resizing images (if you don't just look around the web- there has to be some
> freebies somewhere!). The steps are as follows:
>
> 1. Get your POV file open.
>
> 2. In the command line dialogue box type '-a', '+w' and '+h' options to make a
> rendering exactly twice the size you want it without anti-aliasing.
>
> 3. When it's done, open the image file in your image editing software (in my
> case Jasc Paint Shop Pro 8). Then look around for the resize button. Shrink it
> to half size (the size you originally wanted your picture).
> WARNING- do not use a 'pixel resize' option for resizing. It will look really
> stupid. For any Jasc PSP users, use the 'smart size' option.
>
> 4. When you shrink the image, it will now look like it has anti-aliasing. But
> why go to all the trouble?
>
> The 2x rendering with no AA took only half the time of the 1x one with AA.
> See what I'm saying? Rendering a picture double size with no AA is almost twice
> as fast as rendering the original size one with AA.
Trevor, I couldn't resist, but...
Did you consider the time and work required to bring it up in PSP etc and resize
them?
For a big lot of picture or for really complex models/scenes this may make sense
because the time required for resizing a double-sized image may be much less
than generating such image with AA on in the first place, at the right size. But
with simple things like a subassemblies of a model for eg. building instructions
the time needed for this additional step may exceed the additional time need for
POV to render it with AA on.
Having said that, the batch feature of Photoshop helps a lot in dealing with
many double-sized images at once.
No doubt this is a boon for some circumstances but I think a POV needs to be of
a certain level of complexity for this to be worthwhile.
Just my two cents.
Keith
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Message is in Reply To:
 | | Attention! Cut your rendering time in half!!
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| Alright! Now this works with anything- radiosity included. It actually makes a very low count look like a very high count(just use Jeroen de Haan's radio_1.inc). You will need some kind of image editing software capable of resizing images (if you (...) (21 years ago, 7-Sep-03, to lugnet.cad.ray)
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