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Corner Pin Data, Expressions and Offset (Cont.)
It seems to me that the tracking data that is “dead on” could be used on various layers with an expression and offset. But the points drift over the course of the animation (the offsets varies from keyframe to keyframe). There is an area in the original footage that is imposssible to track accurately so I thought an expression and offset to Corner Pin would be an excellent soultion. Any comments or suggestions out there?
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2 Replies
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Impossible to tell without seeing your footage.
But sometimes it can be solved by finding the center inbetween the 4 points, (best to store that in an extra control point, and convert to keyframes)
Then multiply the distance from the midpoint to the trackpoint by a certain value. (*1.05 for example).
pseudocode:
averagepoint + (trackpoint-averagepoint)*1.05;This can help for example when you’re tracking points that are inside a square, and now you want to extend to the corners of the square.
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Thank you Filip! I’ll give this a go.
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