[Bf-cycles] Question about Seed

[Jordan Miller]

nice, thanks for posting those! interesting experiment. and I <3 those companion cubes.

jordan





On Nov 22, 2011, at 5:34 PM, Thomas Dinges wrote:

> Original 1000s http://temp.dingto.org/render_seed/1000.png
> Original 2000s http://temp.dingto.org/render_seed/2000.png
> 
> Combined 3000s, with a Weighting of 0.66: http://temp.dingto.org/render_seed/3000_combined.png
> 
> Am 22.11.2011 23:20, schrieb Jordan Miller:
>> well the way to test would be to do the 3600 sample render and compare the results. you can do a convert to grayscale then Boolean subtract the two images, then invert the result to see pixel differences.
>> 
>> I suspect the 3600 sample image will be superior. should be identical render time but require no post processing.
>> 
>> now I want to see the image in question, too! care to post it?
>> 
>> jordan
>> 
>> 
>> 
>> On Nov 22, 2011, at 5:15 PM, Thomas Dinges <blender at dingto.org> wrote:
>> 
>>> Yes, that's what Jordan suggested. :)
>>> This makes sense and also gives better results.
>>> 
>>> I hope we will get a better solution though, a good merging system would be awesome. :) 
>>> 
>>> Am 22.11.2011 23:11, schrieb Kel M:
>>>> 
>>>> 
>>>> On Tue, Nov 22, 2011 at 4:59 PM, Thomas Dinges <blender at dingto.org> wrote:
>>>> That seems to give better results, right. Still not sure about this.
>>>> 
>>>> Am 22.11.2011 22:36, schrieb Jordan Miller:
>>>> > have you tried merging them weighted ("factor" setting) proportionally to the number of samples?
>>>> >
>>>> > jordan
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > On Nov 22, 2011, at 4:19 PM, Thomas Dinges wrote:
>>>> >
>>>> >> Hi Brecht,
>>>> >> I am testing the Seed function atm in the Integrator panel.
>>>> >>
>>>> >> Am I right that images, rendered with different seeds can be merged
>>>> >> together?
>>>> >> So for example:
>>>> >> Image_1 has Seed 1 and 1000 Samples
>>>> >> Image_2 has Seed 5 and 2000 Samples
>>>> >>
>>>> >> Do I have 3000 Samples after merging them together?
>>>> >> I did that in the compositor with the Mix node, factor 0.5 and I used
>>>> >> OpenEXR renders for it.
>>>> 
>>>> If the second image was in the second input, shouldn't you set the Factor to 0.66? :)
>>>>  
>>>> >> The combined result was better than the single images, I have the
>>>> >> impression (more noise free).
>>>> >>
>>>> >> Then I rendered another image with 600 samples, and combined it to the
>>>> >> already combined result. Now I have the impression though that the noise
>>>> >> became more again, rather than less.
>>>> >>
>>>> >> So do I something wrong, or is that not supposed to work the way I use
>>>> >> it? :)
>>>> >>
>>>> >> Best regards,
>>>> >> Thomas
>>>> >>
>>>> >> --
>>>> >> Thomas Dinges
>>>> >> Blender Developer, Artist and Musician
>>>> >>
>>>> >> www.dingto.org
>>>> >>
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>>>> 
>>>> --
>>>> Thomas Dinges
>>>> Blender Developer, Artist and Musician
>>>> 
>>>> www.dingto.org
>>>> 
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>>>> 
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>>> 
>>> 
>>> -- 
>>> Thomas Dinges
>>> Blender Developer, Artist and Musician
>>> 
>>> 
>>> www.dingto.org
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>>> http://lists.blender.org/mailman/listinfo/bf-cycles
>> 
>> 
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>> 
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> 
> 
> -- 
> Thomas Dinges
> Blender Developer, Artist and Musician
> 
> 
> www.dingto.org
> _______________________________________________
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