Add a signed distance function to RectT #1015
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Sometimes it's useful to know how far a point lies inside a rectangle. Alternatively, I'd like to replace the plain
distance
function. It currently returns 0 for points inside which could be achieved just by max(x,0)'ing the signed version. Although, I can understand this might be unexpected for people used to the current behavior.A 3d version should probably be added to AxisAlignedBox. Happy to do that as well.
Demo Sketch: