HiRISE DEM's |
HiRISE DEM's |
Apr 13 2008, 10:46 AM
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#1
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Late last week I stumbled upon a few HiRISE derived DEM's (Randy Kirk works his magic once again!)
http://webgis.wr.usgs.gov/ftphirise/index.jsp (URL now down) I'm working on both Vic Crater and the Columbia Hills. Fortunately, now I've got a Mac, I can use ISIS. I've figured out a fairly simple flow ( isis2raw as 16 bit unsigned, and then imported into Photoshop ) to take DEM CUB's and make 16 bit PNG's Just to demo how important that is for me as an animator - sliced comparisons of 8bit vs 16 bit. A busy week unfortunately, but animations of various sorts are in the pipeline. |
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Jan 27 2010, 03:36 PM
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#2
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
The results of processing the new HiRISE team DEM's are beginning to appear. They're not as polished and pretty as the Columbia Hills one. Main reason is time. These are taking approx 1-2 mins per frame, at 750 frames each, so even with my i7 desktop, plus Q6600 render zombie (with occasional pauses for Helen and I to have some practice in dealing with the upcoming zombie apocalypse via L4D ) - it's 6-12 hrs each. So I had to turn down the 'pretty' quite a lot just to get through them in terms of rendering - AND in terms of processing. BJ's all new img2png helps speed up the processing pipeline massively.
Early results so far : Athabasca Valles http://www.youtube.com/watch?v=uQYDElIMQ2s from http://hirise.lpl.arizona.edu/dtm/dtm.php?ID=PSP_002661_1895 Mojave Crater http://www.youtube.com/watch?v=Fp8WU05W0Jg from http://hirise.lpl.arizona.edu/dtm/dtm.php?ID=PSP_001481_1875 My render queue still includes Gale Crater, Bahram Vallis, Candor Chasma, Juventae Chasma. If you see a particular DEM from HiRISE and think " I MUST SEE THAT " - shout, and I'll see if it's worth animating. |
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