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The 3D tracker is great, and works well to obtain information for just about anything. The issue that im having is when I gather my tracking infornation to lets say putting something inside of a monitor with a move on it. I isolate the tracker and attach it to my image that im using to fill the monitor. Well just figuring this out its all in the camera. Tracking info is stored in the camera, obviously. So when I add another image into the scene that im tracking it scales and tracks as well. So I copied the tracking info from the camera onto a fresh axis and attached it to my layer that is going into the tv. Well now my image that is supposed to go into the monitor dissapears? I havent explored the 3D tracker in debth, but is there a way to gather 3D tracking info and be able to add a layer without it doing what the camera is doing for everything else? Thanks.
Well I guess Batch is the only place you can do it. One Action, and the other Action for the other layer. Both combined gets me the result im looking for.
You could also try parenting whatever you need in 2d space to the camera in the action that has your 3d track.
Well im trying to see if it is possible to do this in just the Action module instead of going into Batch. I’ve tried to parent,load only N/L reverse parent. Havent found a way to do it yet.
I’m misunderstanding you, then. Are you trying to add another image to another monitor in your scene, or are you trying to add an image over top of the stuff being camera tracked – a graphic perhaps? If you’re trying to add something to an action setup that has a moving 3d camera that you DON’T want to pick up the camera’s motion (and instead stay flat to the camera in 2d space), all you have to do is add the image and parent it’s axis to the camera. Draw a line from camera->axis then axis->image. If the axis you’re adding to the scene already has tracking data on it, you can still parent it to the camera but you will have to put another axis in there and adjust the scale so everything lines up to screen size.
Maybe im freaking out here, or just tired. LOL Ok I am using the 3D tracker to track a 2D image which is a shot of a guy in his livingroom and infront of a monitor. I then using the 3D tracker, track the shot. I then add another layer which is the layer that is going into the monitor. All is fine at this point and the image that im putting into the monitor is tracking fine. Now I want to add another layer (all layers are your standard 2d) which is a super(text). But when I do, it tracks with the whole comp. I tried to parent from the camera to the text layer, and it just dissapears? I’ve also tried to parent every other way to maybe see if it would work. The only results I get on the text is it either tracks with the whole comp, or dissapears. Thanks for your help by the way.
Aha! I forgot to add a moment ago (sry, kinda busy here too) that you will have to play with the z position and scaling of the layer you parent to the camera. In a 1920×1080 setup, I had to move my parented layer to -1484 in Z position to get it close to the size of the frame. Hope this helps.
VOODOO wrote:Maybe im freaking out here, or just tired. LOL Ok I am using the 3D tracker to track a 2D image which is a shot of a guy in his livingroom and infront of a monitor. I then using the 3D tracker, track the shot. I then add another layer which is the layer that is going into the monitor. All is fine at this point and the image that im putting into the monitor is tracking fine. Now I want to add another layer (all layers are your standard 2d) which is a super(text). But when I do, it tracks with the whole comp. I tried to parent from the camera to the text layer, and it just dissapears? I’ve also tried to parent every other way to maybe see if it would work. The only results I get on the text is it either tracks with the whole comp, or dissapears. Thanks for your help by the way.so if I understand correctly as the camera moves the solution layer fits correctly over the background (and the background in an action layer never moves.. BUT all the other layers such as the text also move…
if this is the case – try parenting the text layer to the camera. that way it will remain static relative to the camera. Jake Parker a great flame artist has an even more advanced solution to this problem called “camera dad” – we gave this out at one of the FXG live events – email me off the list and I casn try and get you a copy if the Camera – parenting doesn’t workMike
Hmmm. Wow very interesting Mike! Ya its weird. I take the background into Action, not batch. This background is just your ole NTSC 2d 87 frm. piece. I then apply 3D tracking and get my tracking info. I then apply another layer and attach the tracking info from the background to it. Perfect it tracks fine. But when I add the text layer and want it not to move, it moves. I understand that because the camera supplies the tracking info, everything in the shot is going to track. But if your saying there is a workaround WOW sounds awesome. Because in Batch I just use an Action node for the tracking info, and another Action node for the text layer, attach them then add an output node and now I have my tracking layer and my static text layer.
its like higginba says
…your text layer disappears because it’s inherited the track markers transform and offset by its own…..try do the parent, reset everything in the text axis to zero, then it’s probably massive so you then have to scale down to sometimes even 0.5%. It should definately work…as long as you don’t have any animation in the field of view in which case you have to create an expression between this and the scale.
In boujou when you export you have the chance to create a scalar offset to the 3d data so that it is more manageable.
paul
Isn’t 3D tracking a bit OTT for doing a monitor insert? I would have done a simple 2 point track with a bicubic
Paul
If you have boujou lying around, though, you can save a ton of time on shots where the screen pans halfway off camera or is otherwise obscured. It takes all of 5-10 minutes, and generally tracks great on the first try.
i know tracking is almost completely dependent on the shot in question…but has anyone done a side by side comparison of boujou 3 and PF track3 ?
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