<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">It is possible to calculate a rotation from fromVector to toVector, but these rotations have an arbitrary upVector. <div><br></div><div>And yes, it would be better to have a defined upVector to make these rotations stable.<div><br></div><div>Holger</div><div><br id="lineBreakAtBeginningOfMessage"><div>
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<div><br><blockquote type="cite"><div>Am 30.08.2024 um 23:45 schrieb Patrick Dähne <pdaehne@gmail.com>:</div><br class="Apple-interchange-newline"><div><div>Unfortunately, it is not possible to implement NurbsOrientationInterpolator because it is not specified how to calculate the „up“ vector (the tangent of the curve only specifies the z axis, but neither the x nor y axis of the local coordinate system). The same applies to any other hypothetical „xOrientationInterpolator“.<br><br>Bye,<br><br>Patrick<br><br></div></div></blockquote></div><br></div></div></body></html>