Go to bottom

Random "work in progress" shots

category: general [glöplog]
You should definitely post that in the paintovers thread!
added on the 2014-12-29 20:08:12 by Kylearan Kylearan
@visy: extremely cool! Not sure, what it is, but it looks very promising.
added on the 2014-12-30 04:02:37 by pixtur pixtur
@pixtur: it's some voxel demostuff we've been working on lately, hopefully releasing at Payback in late Janjuary :)
added on the 2014-12-30 10:39:01 by visy visy
Faking video compression artifacts
BB Image
added on the 2015-01-17 04:45:08 by noby noby
that is, simulating the youtube capture
added on the 2015-01-17 07:55:12 by sm sm
Very nice. I wonder how THAT looks on youtube crap compression :D
added on the 2015-01-17 08:35:45 by leGend leGend
BB Image

no WIP anymore but this is the very professional concept draft of streams of gaia I found yesterday cleaning my messy desk :D
BB Image
added on the 2015-01-17 12:21:31 by Xetick Xetick
@Xetick: that is a lovely.
added on the 2015-01-17 13:41:02 by Zavie Zavie
Xetick: ooh nice. Just a suggestion, it seems the "city lights" are not lit? I mean they're in the texture?
added on the 2015-01-17 15:49:51 by leGend leGend
Xetick, I think what leGend is trying to say is that your image looks a little unnatural, because at the exposure levels neccesary to see stars, your city lights would be MUCH brighter... not some brownish yellow :-)
added on the 2015-01-17 16:47:01 by revival revival
Beautiful! The only unnatural thing is the extreme luminosity of Nile river.
added on the 2015-01-17 16:53:53 by ham ham
revival: thanks for the explanation :D
added on the 2015-01-17 17:53:13 by leGend leGend
ham: That's just bioluminescence.
added on the 2015-01-17 20:51:13 by revival revival
leGend: Correct, textures are from Nasa's blue marble project.
revival: Couldn't agree with you more. Going to see if I can't fix that somehow. Thanks for the reason for the nile river. Never question why since I though Nasa knows their shit. But now we know they do.

Fun facts. The scene is Oculus Rift compatible, texture size om disk is 1.8Mb and the stars/background is procedurally generated.
added on the 2015-01-18 00:25:01 by Xetick Xetick
Faking video compression artifacts
BB Image

Are you really faking it ? Or do you use a compression algorithm ?
That's very interesting though
added on the 2015-01-19 11:21:11 by Buanderie Buanderie
Buanderie: Completely faked :), based on feedback, perlin (simplex) noise, simple 2d sharpening, and a lot of fine-tuned parameters.
added on the 2015-01-19 12:19:02 by noby noby
Wow...thats quite clever.
added on the 2015-01-19 16:31:17 by mudlord mudlord
Noby: is it one quad or several?
added on the 2015-01-19 17:07:40 by Gargaj Gargaj
good, another idea is to do the 8x8 dct, then remove random components/ quantize, then do the inverse. This will look a lot like bad jpg.
added on the 2015-01-19 17:32:54 by Navis Navis
blur out the 8x8 coeff block towards the lower right, gets right rid off those nasty details :)
added on the 2015-01-19 18:22:13 by superplek superplek
gargaj: One quad, render-to-texture feedback where on each pass you do a composite of the current frame, previous frame with distorted coordinates (blockiness) and previous frame sharpened (artifacts).

navis: Yes i've been thinking about that too :-), could be made even better by separating the chrome and luminance similar to composite video and mangling each of those separately.
added on the 2015-01-19 19:14:24 by noby noby
revival: or simply a lot of nocturnal human activity! :D
added on the 2015-01-19 19:19:12 by ham ham
@noby: if you want to do all that true to form you'll end up splitting luma to a half size buffer and chroma (uv) to quarters, then dct'ing that, then fucking up the coeffs with a filter of sorts, decompressing (dct->yuv->rgb) and recompositing *and then* do some sort of blend with your current result

for mpeg2
all in all that seems like a lot of work and potentially worse looking than just taking a shortcut here and there

(luma/chroma separation for filtering in itself is fun though)
added on the 2015-01-19 19:38:01 by superplek superplek


Go to top