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Question by InDNA · Apr 23, 2017 at 05:33 PM · c#rotationbounds

Get Rotated Extents in a direction

How can I get the distance from the center of an object to the edge that's facing down, after it's been rotated?

We'd probably need to use the object's Bounds and transform.up or rotation, but I can't wrap my head around how exactly.

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Answer by Glurth · Apr 23, 2017 at 08:08 PM

The bounds are in local coordinates for Mesh bounds (note: different for Render's bounds, and collider's bounds). You can simply pass the bound's point, like say... the bounds.max point to transform.TransformPoint(boundspoint) to convert it to a global/word position.

You can now compute distance as you would any other normal world-space vector subtraction. e.g.

 Vector3 globalmax= transform.TransformPoint(bound.max);
 float distance = (globalmax - transform.position).magnitude;

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