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Lens Flare position to rotation expression
Sincere apologies if this has already been covered, but I couldn’t find it anywhere, so I thought I’d ask!
I’ve built a composition containing a planet and moon built with CC Sphere. I’ve put a lens flare in there as a sun and I want to set an expression so that when I move the lens flare, the angle of the light in CC Sphere matches the position of the sun – just like in the real world.
Any thoughts?
Chris
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3 Replies
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Give this a try:
L = thisComp.layer(“sun”);
P1 = L.toComp(L.effect(“Lens Flare”)(“Flare Center”));
P2 = toComp(anchorPoint);
delta = P1 – P2;
angle = radiansToDegrees(Math.atan2(delta[1],delta[0])) + 90Dan
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Mr Ebberts – you are a master.
Thank you so much for this.
Now if I could just figure out how the maths actually works….Would you mind if I include this in a tutorial I’m doing? I’ll happy say you supplied it.
Chris
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Chris,
Sure, I have no problem with you including it in a tutorial.
Dan
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