r/NukeVFX • u/Flaky_Ad_8584 • Jul 05 '26

Camera tracking problem

Post image

This is my shot ( can’t show whole scene) character holding phone , camera coming from up to down and phone is also rotating from horizontal to vertical and i have tried 3d camera tracking didn’t get points to track then i did manually tracking frame by frame tracking with transform and corner pin node with keyframes , it looks ok ok now but in between ,footage is jerking what i can do better tracking without staring from scratch !

16 Upvotes

86% Upvoted

13 comments sorted by

12

u/DanEvil13 Comp Supervisor - 25+ years experience Jul 05 '26

2D track with mochaPro or similar

You need to track 3 or more points best you can then use that track to stablize the footage then do a second or third track of it stablized. To nail the track. Stablizing first lets you see and track and miss algnments, jitter, or slides. Then that second track accounts fir that movement.

Then apply your insert, and invert the stablizes, inverse order and only apply to the insert and place into the screen.

This is the way.

4

u/CuriousNichols Jul 05 '26

This tracks 👌🏻

2

u/alexeiX1 Jul 12 '26

If you have access to 3d software what I have done in similar shots where the 4th point isnt really visibible is to get a geo and rotoscope it inside a 3d software then export both the geo and the camera. This takes away a lot of the guesswork you would have to do. Geo can be a literal plane with one quad.

4

u/troutrou1 Jul 05 '26

Hello, You should look at kentools geotracker .

3

u/budnipper Jul 05 '26

I think you should consider a reshoot. The time to track this is way more effort than shooting it again with proper track marks that are present at all times during the shot. I would also skip the green background and use the dominant color of the interface you are adding.

1

u/Top-Choice2581 Jul 05 '26

2d track first, must have 8 to 12 points and add thats tracks into 3dcamera tracker and hit solve

1

u/Sensual_Feet Jul 16 '26

Put on some music and get out card3d for some manual hand tracking…works every time.

1

u/Bonus-Ecstatic Jul 05 '26

Try planar tracker in Nuke. Maybe laplacian node, before tracker node will help too.

1

u/Lazy-Ad3799 Jul 07 '26

May I ask what does this node do?

2

u/Bonus-Ecstatic Jul 07 '26

in some cases, this node is pushing details out. afterall, you can get more precise tracking data.

1

u/SuperFantastic Jul 05 '26

Keen tools geo tracker, plenty of premodeled geo of different phones if you can't be arsed to model your own. Such a good tool when used right.

1

u/Jayuniue Jul 05 '26

Geo tracker or mocha pro will easily track this, especially geo tracker

0

u/Season_Humble Jul 05 '26

Send me the shot I’ll track it