Andrew Somers
Forum Replies Created
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PURGE all memory, and CLEAR ALL CACHES.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
That’s a good idea Steve, I didn’t even think about the mesh warp to cheat the image into position on the face.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
Yes, you have to set a HOLD OUT matte for the moving background, though if it already very bright you could (possibly) over expose the exterior and CLIP it, but that might cause other issues (just typing out loud).
For the WINDOW track, after the moving exterior junk is covered, set the spline edge a bit larger than the actual window opening, this will allow mocha to get a better TRACK. After tracking, attach a new shape to that track, and adjust that shape for a perfect edge on the window.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
I’m really not clear on what you are doing or trying to achieve?
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
YIKES
The biggest problem is the geometry of the guys face, so that the video is naturally distorted on his body and face.
What you need is a way to make a mesh (i.e. 3D model) of the actor including his movement that can be projected on.
PF Track, a tracking system, has a way to make meshes like that a as I recall, though I’ve never done it for a projected image. I discuss some related techniques in THIS ARTICLE though I don’t know if it can help you.
A possible solution for you:
Using the RAY TRACED render engine:
If you are never that close to the actor, if might work “well enough” to create a tracked mask of the actor using Mocha, then apply that to a WHITE SOLID and precompose. Then set the precomposed composition to 3D layer and portion it so it is exactly over the actor. Set the materials options TRANSPARENCY too as much as 100% (note do this in Materials and NOT in the regular transform, which should probably remain at Opacity 100%). Then project onto that and your BG. Call this layers “Projection Catcher”.Create a duplicate of this layer slightly behind in Z space and set its materials transparency to 0%, and set it to CAST SHADOWS ONLY so that it shadows the BG projection. Call this layer “Shadow Caster”.
If the camera moves then you will need to create a 3D camera track so that the projection catcher and shadow caster remain in the correct relative position. I might mention you *could* try and cheat the body and face geometry by using multiple projection catchers slightly moved in Z space to emulate the geometry. This might be more trouble than it’s worth, and depends on the shot and how much Z depth there is in the subject.
The projection by the way is created by using a point or spotlight, and shining it through the image you want projected. The image here again is set to 3D space and materials set to Transparency 100%, cast shadows OFF (as I recall).
At any rate, it may sound a little complicated but not too difficult to do.
EDIT TO ADD: A few weeks ago we were discussing projection in AE, in THIS THREAD and I’ll mentioned that based on some experiments you want to keep the image to be projected no less than 50% scale, and not too close to the light source (see thread for more).
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
Awesome you’re welcome! Glad it worked for you.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
You can still cut out the section that needs blur as a separate layer, so you can constrain the bounds of the blur. It may require precomping that piece.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
It’s smooth on my laptop, a MacbookPro. I can’t test on my iPhone due to how it is uploaded here (maybe when I get back in the studio). I’d like to recreate the issue so I could see what you’re seeing.
A shorter shutter speed will increase the perception of jitter.
Question: are you shootng at 24 and converting to 30 somewhere? Then you probably have a pull down problem such as starting on an even field when your target requires odd (or vice versa). I’d need to know more about the specifics of your project and workflow.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
Without an example, based on what you are saying, put the text to be blurred on its own layer.
Alternately, use an ADJUSTMENT layer with the mask and blur, that will constrain the blur to the masked area.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
The grid and color patches matches closely, meaning the BOX object is just very close to camera and far far above the ground plane.
It would be more helpful to see the 4-view (TOP, RIGHT, FRONT, CAMERA).
In the meantime, look at the coordinates of one of the nulls, and transfer those exact coordinates to the BOX object. That should get you in the right direction.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com