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driving rotation with a black and white map in after effects using expressions?
Wondering if someone could help me out…
Is there a way to drive rotation of a 3d layer y rotation with a black and white map in after effects using expressions? Kind of like what the shader effector can do in C4d
Thanks very much,
Lex -
1 Reply
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This may not be exactly what you’re looking for, but it should give you some ideas:
map = thisComp.layer(“map”);
minRotation = -100;
maxRotation = 100;
samplePoint= toComp([width,height]/2);
rgb = map.sampleImage(map.fromComp(samplePoint),[.5,.5],true,time);
lum = rgbToHsl(rgb)[2];
linear(lum,0,1,minRotation,maxRotation)Dan
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