| 00:38 | Bertl | back now ...
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| 00:50 | troy_s | Bertl: How do you combine matrices?
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| 00:50 | Bertl | simple matrix multiplication
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| 00:51 | Bertl | http://en.wikipedia.org/wiki/Matrix_multiplication
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| 00:52 | Bertl | (Matrix product)
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| 00:53 | Bertl | note that it is not commutative, i.e. order matters
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| 00:54 | Bertl | http://wims.unice.fr/~wims/en_tool~linear~matmult.html
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| 00:58 | Bertl | slikdigit: you're good with blender?
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| 02:14 | troy_s | Bertl: slikdigit is more than good.
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| 02:15 | troy_s | Bertl: ;)
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| 02:15 | troy_s | Bertl: He's the director of Elephant's Dream. Not sure if you have seen it or not. :)
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| 02:15 | Bertl | I was hoping for that :)
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| 02:16 | Bertl | I'm desperately looking for a cool 4k rendered image for testing to replace the 'awful' color smoke now that we have deep color :)
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| 02:17 | Bertl | i.e. something which has at least 4096x3072 pixel and 12 bit per color channel
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| 02:17 | troy_s | Bertl: Interesting. Well I'm sure that slikdigit can probably pull up a deep frame from ED or something.
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| 02:19 | Bertl | and yes, I've seen Elephant's Dream ... loved it!
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| 03:04 | troy_s | Bertl: Why does that second link calculate the inverse of the B matrix, then mults by A, then B?
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| 03:04 | troy_s | Can't you just mult A by B?
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| 03:05 | Bertl | which one?
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| 03:05 | Bertl | you can set a formula on the french link
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| 03:06 | Bertl | not sure what you have set there, but if you put C=A*B there, it is just a multiplication
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| 03:06 | Bertl | (or B*A if that is what you want)
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| 03:06 | troy_s | I see C= B^-1*A*B
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| 03:06 | troy_s | Which seems... Odd.
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| 03:07 | Bertl | well, then replace the right side by A*B or B*A
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| 03:08 | troy_s | I realize that. Was just wondering why it would default to that.
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| 03:08 | troy_s | Odd.
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| 03:08 | Bertl | the french are sometimes odd, so no idea why ...
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| 03:09 | Bertl | note that reinitialize the page always generates a random formular
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| 03:09 | troy_s | Ah.
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| 03:09 | troy_s | Random!
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| 03:09 | Bertl | well, at least it seems to me like that :)
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| 03:09 | troy_s | Bertl: What's an invariant?
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| 03:09 | troy_s | (n^-1?)
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| 03:10 | Bertl | in the mathematical sense, an invariant is something that remains unchanged during transformation
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| 06:51 | se6astian | good morning
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| 06:51 | Bertl | and a good one 2u2!
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| 06:51 | se6astian | :D
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| 12:17 | philippej | troy_s, could you elaborate why pci (or similar) would be a bad idea for interboard connections? The idea is to screw everything together to the enclosure, and use some kind of connectors between each board. We can't solder them together :-) There is also the issue of price and serviceability (easy to unscrew a board and replace it).
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| 14:11 | Bertl | off for a nap ... bbl
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| 17:46 | slikdigit | Bertl: troy_s: http://media.xiph.org/
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| 17:46 | slikdigit | look here :) it is a smorgasbord of Blender Foundation footage
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| 17:47 | troy_s | slikdigit: any deep depth 709 / srgb?
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| 17:49 | slikdigit | maybe check the exr frames from ToS
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| 17:49 | slikdigit | or the clean or raw footage
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| 17:50 | se6astian | I just created a 16bit tiff from a photo of the prototype: https://cloud.gerade.org/public.php?service=files&t=88644302ffde4f6e5659627a3c8bbf32&download&path=/Axiom/alpha/axiom-alpha-hardware-logo.7z
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| 20:16 | Bertl | back now ...
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| 22:09 | se6astian | time for bed
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| 22:09 | se6astian | good night!
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