[Bf-cycles] Question about Seed

[Thomas Dinges]

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 
> <mailto: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 
>>> <mailto: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 <http://www.dingto.org>
>>>     >>
>>>     >> _______________________________________________
>>>     >> Bf-cycles mailing list
>>>     >> Bf-cycles at blender.org <mailto:Bf-cycles at blender.org>
>>>     >> http://lists.blender.org/mailman/listinfo/bf-cycles
>>>     > _______________________________________________
>>>     > Bf-cycles mailing list
>>>     > Bf-cycles at blender.org <mailto:Bf-cycles at blender.org>
>>>     > http://lists.blender.org/mailman/listinfo/bf-cycles
>>>
>>>
>>>     --
>>>     Thomas Dinges
>>>     Blender Developer, Artist and Musician
>>>
>>>     www.dingto.org <http://www.dingto.org>
>>>
>>>     _______________________________________________
>>>     Bf-cycles mailing list
>>>     Bf-cycles at blender.org <mailto:Bf-cycles at blender.org>
>>>     http://lists.blender.org/mailman/listinfo/bf-cycles
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Bf-cycles mailing list
>>> Bf-cycles at blender.org  <mailto:Bf-cycles at blender.org>
>>> http://lists.blender.org/mailman/listinfo/bf-cycles
>>
>>
>> -- 
>> Thomas Dinges
>> Blender Developer, Artist and Musician
>>
>> www.dingto.org  <http://www.dingto.org>
>> _______________________________________________
>> Bf-cycles mailing list
>> Bf-cycles at blender.org <mailto:Bf-cycles at blender.org>
>> http://lists.blender.org/mailman/listinfo/bf-cycles
>
>
> _______________________________________________
> Bf-cycles mailing list
> Bf-cycles at blender.org
> http://lists.blender.org/mailman/listinfo/bf-cycles


-- 
Thomas Dinges
Blender Developer, Artist and Musician

www.dingto.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.blender.org/pipermail/bf-cycles/attachments/20111122/d5e28dd8/attachment.htm