Corner Pin type free distortion solution needed – any options/ideas pls?

[Teerav]

im confused, if you need to do motion tracking, why not just use the motion tracker? what am i missing

[Jaso Allen]

Hi Teerav,

Using motion tracking I can get the locations of the points i need, but to apply them to my layer i want to be tracked i need to anchor points to be inset and repositioned from the very top/bottom left/right corners which corner pin is based on.

Essentially I need to do the corner pinning function, but with the ability to set my four “Corner Points” to be anywhere on my target layer that i want.

Hope this clarifies it, as I’d really appreciate any suggestions.

Thanks again
Jase

[Colin Braley]

There are a lot f ways to do something like this. You could try using CC Power pin instead of the regular corner pin if you have it. Using CC Power Pin you can move the corner pinned layer around a bit and scale it but that not be enough control for what you are looking for. In that case, I recommend using expressions to link the each of the track points to each corner of the corner pin. Then add a point control to the layer named somehting like “offset 1.” Add this into the expression and then change the position of the offset 1 point control to adjust your corner point. Do this for each corner.

~Colin

By the way….the expression for the each of the corner points should look something like this:

thisComp.layer(“Motion Tracked Layer”).motionTracker(“Tracker 1”)(“Track Point 1”).attachPoint + effect(“Offset 1”)(“Point”)

[Peter Litwinowicz]

What I think you want is to track 4 points on a 3D plane in an image, but want to texture part of that 3D plane with your image (or alternatively, extend the texture past the points you are tracking, but still on the same 3D plane).

AE’s corner pinning doesn’t do this.

However, our RE:Map plugin set ($149.95) DOES do this. It allows you to use 4 points that form a rectangle in 3D space and then use that rectangle to define a plane that you can then texture, or texture any rectangle on that plane using a scaling parameter for X and Y, so that you can truly texture a rectangle on the 3D plane, but not limited to the rectangle defined by the 4 points.

Is this what you are looking for?

if so, why don’t you try our demo version of RE:Map, available in the “Downloads” subsection for RE:Map on our website: https://www.revisionfx.com/rmap.htm Make sure to look for the manual (in HTML) format that is placed on your disk with the plugins upon installation.

Pete Litwinowicz
https://www.revisionfx.com

[Peter Litwinowicz]

Oh, I should say that solution proposed of using the 4 points on the and then using expressions to extend those points to offset positions does not extend the plane in 3D space properly and can give you very incorrect perspective transforms if you really want to stay on the 3D plane tracked by the 4 points in the image (of course, for small distances the approximation of offsetting the tracked oints can sometimes work… for larger distances it will not).

pete