9055280b7d
* Added explicit copy constructors to Imath::Matrix33<T> and ImathMatrix44<T> to make conversions between float and double matrices more convenient. * Added slerpShortestArc() and euclideanInnerProduct() functions to Imath::Quat<T>. * Added 4D vector class template Imath::Vec4<T>. * Copy constructors and assignment operators for Matrix33<T> and Matrix44<T> are up to 25% faster. Added matrix constructors that do not initialize the matrix (this is faster in cases where the initial value of the matrix is immediately overwritten anyway). * Rewrote function closestPointOnBox(point,box). Shortened the code, improved numerical accuracy, fixed a bug where closestPointOnBox(box.center(),box) would return the center of the +Z side of the box, even if the +/-X or +/-Y sides were closer. * Rewrote function findEntryAndExitPoints() in ImathBoxAlgo.h. Results are now consistent with those from intersect(), also in ImathBoxAlgo.h. * Made Vec2<T>::length() and Vec3<T>::length() more accurate for vectors whose length is less than sqrt(limits<T>::smallest()); * Made Quat<T>::angle() more accurate for small angles. |
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