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Using layer position for mask points or stroke end/start points
Hi,
I posted a question about 3D-Tracking of aerial pictures to insert points/lines 2 days ago and that was a bit too much:
https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=881476
I got some hints from Mylenium and Steve and decided to drop it. Unfortunately I can’t go for the stillpicture version like I proposed to the customer before and was proposed by Steve.
So I decided to put in points myself and animate them by hand to roughly fly with referance points in the footage behing. I’d use 5×5 pixel layers, keyframe those by hand and parent them to textlayers with descriptions and a kind of cursor.
Although the “swimming” is appearing between the real footage and the “hand-tracked points” this seems to be the best solution at the moment. Since the points I put in are parts of a canal to be built in later it would be good if I could also connect these points with lines. I remember reading something like this with expressions but can’t find it.
Is there any possibility to use the position property of 2 or more layers to add to mask points to use stroke or vegas on or to the start/end point of a beam. The intention is to stroke the distance between the points flying through the composition. Stroke/Vegas on Masks, Beam, Expressions… is there another easier way of doing this?
Thanks for any hints in advance.
Karim
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1 Reply
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Try my World Map tutorial. It contains the basic math in 3D, you just need to expand it to work for 3D layers by adding the same formulas to the Z position and rotation parameters. If you want to use the Beam effect instead, you need to use layer space transforms such as .toComp(), the usage of which has been discussed several times. do a quick search.
Mylenium
[Pour Myl
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