Forum Groups
  All forums
    Help & Feedback
      Questions
      Work in progress
      Finished Art
      Non-Max related
    Community
      Offtopic
      News
    Hardware
    Photography


Featured Threads
  inspiration alert!!!
(36 replies)
  Indespensible MaxScripts, Plugins and 3rd Party Tools
(37 replies)
  The allmighty FREE Resources Thread !
(17 replies)
  spam alert!!!
(4886 replies)
  Maxforums member photo gallery index
(114 replies)
  Maxforums Member Tutorials
(89 replies)
  three cheers to maxforums...
(240 replies)
  101 Things you didnt know in Max...
(198 replies)
  A Face tutorial from MDB101 :D
(95 replies)
  Maxforums.org Members Gallery
(516 replies)
  SON OF POST YOURSELF
(637 replies)
  Dub's Maxscript Tutorial Index
(119 replies)

Maxunderground news unavailable

nukeX data to max
show user profile  digital3ds
I'm trying to composite some obj in nuke but I'm having trouble, and was hoping someone might have any good nuke to max references; I can't find anything on the webs

My trouble is: I have a .mov that Ive cameraTracked in nuke. I export (writeGeo) everything as an .fbx, but when I go to max and import that .fbx, the camera animation is wrong (almost like it's scaled or something)

Does anyone have experience working between the two that has had these troubles? It's seems to be quite difficult getting my nuke scene data into max properly
- Mike Sawicki




read 1548 times
9/14/2012 8:18:01 AM (last edit: 9/14/2012 8:18:01 AM)
show user profile  donvella
Can you show screenshot of your scene in nuke and then in max and how it differs?




read 1542 times
9/14/2012 8:41:01 AM (last edit: 9/14/2012 8:41:01 AM)
show user profile  digital3ds
thanks, I sorted that last problem out by re-doing the entire scene.. of course I've run into another problem..



I can't seem to line this up.. I've tried putting the img sequence in the environment bg but I get the same result in render.. In maya all you have to do is select your viewport, import img plane sequence and everything lines right up without issue.

Any ideas? (the backplate isn't corresponding with the point cloud)
- Mike Sawicki




read 1532 times
9/14/2012 9:51:39 AM (last edit: 9/14/2012 9:51:39 AM)
show user profile  digital3ds

- Mike Sawicki




read 1524 times
9/14/2012 10:21:00 AM (last edit: 9/14/2012 10:21:00 AM)
show user profile  reeves1984
The plate itself isn't lining up with the point cloud? Oh but I see you have it on some actual geometry.. Not that that should really matter.

In max you can add it into view>viewport background (which is shite, creates a pointless max only file type and doesn't cache.. but there you go)

ANYWAY check that the camera/plate are not just out by 1 frame? Issues often come from things starting at 0, and others at 1

(ALWAYS START FROM 1!)

--
Simon Reeves


www.simonreeves.com - VFX Artist & Blog
twitter


www.analogstudio.co.uk <-- I work here

read 1519 times
9/14/2012 11:45:35 AM (last edit: 9/14/2012 11:45:35 AM)
show user profile  digital3ds
YES! Putting the animated backplate into the viewport bg did the trick, thanks a million!
- Mike Sawicki




read 1511 times
9/14/2012 7:04:05 PM (last edit: 9/14/2012 7:04:05 PM)
show user profile  digital3ds
a bit of excitement, still a fail... the point cloud was moving slightly. I can not, for the life of me, find anything online or figure out how to 3d track a backplate in nuke, create a point cloud, then export all that into a working scene...

I read somewhere that you need to export the cloud as a .char file or something?? I don't even see that option in nuke. This shit is so easy in maya, it must be as easy in max! I refuse to believe maya is better at this sort of thing

has nobody done this before, or am I just failing? I can make a sick track in nuke, but when I bring all that garbage into max I cant make a cube follow properly! : (

The only thing I can thing of is the camera data isnt transfering properly (hence the small imperfections of translation and rotation)
- Mike Sawicki




read 1491 times
9/16/2012 12:39:41 AM (last edit: 9/16/2012 12:39:41 AM)
show user profile  donvella
I just did this on my last 3 jobs... I had to go with a 2D track on 1 shot because I couldnt hold a steady enough track, I tried syntheyes,boojoo,matchmove. Depends on the shot if its a steady camera focusing 1 object (like an interview) use Mocha, and 2D track it using planes instead of points, they are far more accurate as you can track a huge section of different 'colors' or 'textures' and it tracks far more precisely (and easy to create mattes from).

I didnt try nuke as Im not familiar with the process. I would suggest looking for an option for 'focal length' because I had this on for my first 10 bloody goes at 3D tracking and it was messing with my track. I thought that the focal shift in the video - was this option, but its only if the camera moves forward or backward, not the zoom operation if that makes sense.

This seem to get me through
http://www.imagineersystems.com/learn-mocha






read 1483 times
9/16/2012 5:14:37 AM (last edit: 9/16/2012 5:16:25 AM)
show user profile  digital3ds
Hmm, thanks for the advice man.. best result was from a 3d track with just a rotation (easy enough) - still couldn't get anything to match up inside max : ( super lame
- Mike Sawicki




read 1479 times
9/16/2012 11:16:58 AM (last edit: 9/16/2012 11:16:58 AM)
show user profile  DannyMax
have you seen this web page ? if not it maybe some help :) http://jordalefou.blogspot.co.uk/2011/04/nuke-camera-to-3dmax-fbx-to-max.html




read 1477 times
9/16/2012 5:45:09 PM (last edit: 9/16/2012 5:45:09 PM)
show user profile  donvella
Try using a box the size of that car to your left and remove the excess track points around it, try to keep maybe 1 for the roof level and one for the ground level (too many is confusing). This way in max you can create your box roughly the same size as the car and as long as those two points sit on top and below your box (just do it by eye move the camera and points while you have the video displayed in your viewport background). This should be close enough.




read 1465 times
9/17/2012 5:57:27 AM (last edit: 9/17/2012 5:57:27 AM)
show user profile  digital3ds
@ DannyMax - not specifically. I've seen a lot of stuff like this tho, but not as promising. the link you sent seems to go more into the problem; Im going to try and pick it apart as this seems like the best way

@ Donnvella - Good idea, I hadn't thought about it like that. I ended up doing it in maya (the tracking part), but I'm so frustrated I couldn't finger it out that Im going to revisit the entire scene when my schedual clears up, fml.. I think a combo of matching up know objects like ur suggesting and using a script of some sort for camera data is the best approach
- Mike Sawicki




read 1460 times
9/17/2012 8:08:50 AM (last edit: 9/17/2012 8:08:50 AM)
show user profile  pumpambang
hi, digital3ds. have you found a workaround for this ?
read 892 times
10/5/2014 6:16:53 AM (last edit: 10/5/2014 6:16:53 AM)
#Maxforums IRC
Open chat window


Support Maxforums.org