NASAView and raw MGS topography data, How to create images with the full sample size? |
  |
NASAView and raw MGS topography data, How to create images with the full sample size? |
 Jan 2 2008, 06:55 AM
Post
#16
|
|
 Director of Galilean Photography  Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93  |
Well, if there was some way to divvy up the work, couldn't we create a virtual renderfarm for you? Although, I was looking into it, and for ~$600 I could build a quad-core 2GB system. Would be easy to create a a renderfarm with one or more of those puppies.
-------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
 |
 
|
|
Jan 2 2008, 09:08 AM
Post
#17
|
|
|
Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
That's exactly what I'm planing
 I did a spreadsheet comparing total system cost to render speed (basically frames per hour per pound purchase prices) for various options. I've always had this belief that the best cpu in performance/£ isn't always the best component because it's only a part of the whole system...and indeed and for £300 I can do exactly the sort of rig you suggest - little asus barebone boxes, Q6600's, 2gb and a small SATA drive. I'm looking at the various asus boxes carefully as I used Win XP 64 and would like the same OS on the nodes for rendering consistency - and if possible, I'd like to do what I've done on my desktop rig which is overclock the 2.4 gig Q6600 to 3 gig - 25% extra free, and it's been 100% stable on my desktop rigI literally, set the fsb from 266 to 300 by accident when I built it, so it was at 2.7 all the time before I noticed - and seeing as 3 gig is the fastest quadchip they'll sell you, all be it at 3x the £150 price of the Q6600, I thought it was worth a stab, so I set the FSB to 333 and it's been 100% perfectly stable ever since - even when rendering for 3 days straight over Christmas. 3ds Max is the only thing I can give it to 'fill' all four cores However - I don't really need a farm just yet - so I'm going to hold off as long as I can, and then maybe sort something out in a few months time. For £1k today, I could have 12 cores - and technically quadrouple the rendering performance of the shed. I'm also looking at ISIS again on my Macbook. Last time around I gave up before I even got any app working. Last night I got vicar2isis working for HRSC dem's - but in trying to shortcut the data rsync, I'd missed some template it needed so I've got a day of that to get thru yet before I can try that, and I'll try MOLA thru it as well. Doug |
|
|
|
|
Jan 2 2008, 12:18 PM
Post
#18
|
|
 IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
QUOTE (djellison @ Dec 31 2007, 03:31 PM)  NEARLY works with Photoshop. The dimensions are in the LBL, but I'm getting an odd clipping whereby (I think) I'm getting two hacks at 16 bits, with the depths resetting from black to white to go deeper. Odd. The problem is that the 16 bit numbers need to be byteswapped (bigendian/smallendian stuff; take a look at this). Obviously I *really* should try to find the time to modify IMG2PNG to handle these files properly. The problem is that I'm spending huge amounts of time making DEMs of Saturn's satellites - I'm sort of relieved to see I'm not the only one needing a supercomputer. 10-20 hour calculation runs are a routine for me now ;-). |
|
|
|
|
Jan 2 2008, 02:06 PM
Post
#19
|
|
|
Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Bjorn,
Would you be interested in sharing the source for IMG2PNG? I'm not really a SW guy, but I can hum a few bars and fake it pretty well. Byteswapping would be an easy option to add, and it would be nice to calibrate & decompand the CTX IMGs directly. -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
|
|
|
|
Jan 23 2008, 09:32 PM
Post
#20
|
|
|
Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
ImageJ can handle this lot perfectly - I'm now working on mosaicing the 128ppd set - but basically importing at 16 bit signed, then exporting a TIFF - the final tif is fine.
Doug |
|
|
|
|
Jul 10 2009, 07:44 AM
Post
#21
|
|||||
|
Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Just for fun - I've revisited my stock Mars model in 3DS Max. It needed work, and I think I've improved it. I'll post some obscure low sun low altitude renders later, but meanwhile, a 72 second animation that has two rotations of Mars - one at normal topography, one with the Topography massively exaggerated.
The finished 1080 res MOV is available here : http://vimeo.com/5529718 (link at the bottom to download it) and also in You Tube's idea of 'HD' http://www.youtube.com/watch?v=o5QlvD3bn_w
Attached thumbnail(s)
|
||||
|
|
|
||||
|
Jul 10 2009, 01:51 PM
Post
#22
|
|
|
Member Group: Members Posts: 122 Joined: 19-June 07 Member No.: 2455 |
Wow, that's incredible Doug. Truly gives you perspective on how varied Mars topography is.
Art |
|
|
|
|
Jul 10 2009, 02:02 PM
Post
#23
|
|||||||||||
|
Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
A bunch more random renders. One is especially for Stu and I, at 2kx2k, the resolution of OSIRIS on Rosetta.
Attached thumbnail(s)
|
||||||||||
|
|
|
||||||||||
|
Jul 10 2009, 03:05 PM
Post
#24
|
|
 Member Group: Members Posts: 399 Joined: 28-August 07 From: San Francisco Member No.: 3511 |
Love the Mars Blowfish!
 Thanks for sharing.Eoin -------------------- 'She drove until the wheels fell off...'
|
|
|
|
|
Jul 10 2009, 07:19 PM
Post
#25
|
|
 Member Group: Members Posts: 813 Joined: 8-February 04 From: Arabia Terra Member No.: 12 |
Ahh, beautiful stuff, even though I do prefer a Mars that looks more ochre.
|
|
|
|
|
Jul 19 2009, 06:24 PM
Post
#26
|
|
|
Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Another animation just for fun.
http://vimeo.com/5666678 http://www.youtube.com/watch?v=0OQWxe6UhNg Put it full-screen, put your laptop on the floor, and watch standing up
|
|
|
|
|
Jul 19 2009, 06:55 PM
Post
#27
|
|
 Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Great stuff!!!!
Took your suggestion & it damn near gave me vertigo.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
|
|
|
|
|
|
Lo-Fi Version | Time is now: 25th April 2024 - 01:02 PM |
|
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |
|
