Convert globals uuid and quaternion to tables, to match vector's implementation#30
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HaroldCindy merged 5 commits intosecondlife:mainfrom Dec 16, 2025
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…ementation Signed-off-by: WolfGangS <flamin2k8@gmail.com>
Signed-off-by: WolfGangS <flamin2k8@gmail.com>
HaroldCindy
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Dec 14, 2025
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Dec 14, 2025
Signed-off-by: WolfGangS <flamin2k8@gmail.com>
HaroldCindy
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Generally looks pretty good! Just one question about the SLERP stuff.
…ife viewers slerp function Signed-off-by: WolfGangS <flamin2k8@gmail.com>
Signed-off-by: WolfGangS <flamin2k8@gmail.com>
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Thanks! I'll get this out with the next release.
monty-linden
changed the title
| float invNorm = 1.0f / sqrtf(quaternion_dot(quat, quat)); | ||
| luaSL_pushquaternion(L, quat[0] * invNorm, quat[1] * invNorm, quat[2] * invNorm, quat[3] * invNorm); | ||
| return 1; | ||
| } |
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does it miss normalize( quaternion( 0, 0, 0, 0 ) ) ?
this one checks for it: https://github.com/secondlife/viewer/blob/f4eec813a3043e2277ae62da6a829c65887d0785/indra/llmath/llquaternion.h#L504-L535
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Changes globals
uuid, quaternion, rotationto tables with__callmeta method to preserve previous function like behavior for creating uuid's and quaternion'sAll tables contain a
createmethod to follow teh same pattern that the vector table implements.quaternion, rotationalso containnormalize-(quat: quaternion) -> quaternionmagnitude-(quat: quaternion) -> numberdot-(quat1: quaternion, quat2: quaternion) -> numberslerp-(start: quaternion, target: quaternion, interpolation: number) -> quaternionconjugate-(quat: quaternion) -> quaterniontofwd-(quat: quaternion) -> vectortoleft-(quat: quaternion) -> vectortoright-(quat: quaternion) -> vectorMethods useful for working with quaternions.
Originally there was also an intent to add
toeulerandfromeulerhowever as i could not find a way to implement them and match the output of LSL'sllEuler2Rotexactly, this has been left out for now, for addition later, after either it's been decided if matching them exactly is needed or not, and if so someone with access to teh reference implementation might need to do it.Personally looking at some of the various implementations I've seen, I'm not sure slua's implementation needs to match
ll.Euler2Rotexactly, as that is still available if someone needed exact value matching. A "simpler" implementation could be used, as long as it provides expected results.Update
A set of basic quaternion tests for lua have been added