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companje/Orientate circle on sphere.pde

Created March 25, 2024 01:03
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Orientate circle on sphere
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Orientate circle on sphere.pde
//...
PVector axis = PVector.cross(lens, new PVector(0, 0, -1), null);
float angle = PVector.angleBetween(lens, new PVector(0, 0, 1));
pushMatrix();
rotate(angle, axis.x, axis.y, axis.z);
translate(0, 0, height/2-3);
noFill();
stroke(0);
strokeWeight(5);
hint(DISABLE_DEPTH_TEST);
circle(0, 0, 2*lens.radius*height/2);
hint(ENABLE_DEPTH_TEST);
popMatrix();
//...
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