Скачать или смотреть Diagnosing particle system inconsistencies - Unity Why?!

So... In order to diagnose the inconsistencies with the particle system between Unity and the upcoming PhotonDust, I wrote a simple script that's purely Unity - no FrooxEngine at all.

Turns out, the inconsistency is actually in Unity itself. One, the euler angles are reversed even between Unity's own transforms and its own particle system (why? ;_; ).

But worse, the alignment of particles by velocity in combination with a rotation offset behaves very strangely. If the particles are moving exactly along the Z axis, then they rotate one way. But the moment it deviates even a tiny bit on the X axis (you can see me putting values like 0.00001 in there) it suddenly flips to a completely different orientation!

This means that PhotonDust behaves different, because it is actually consistent with its orientation handling, while Unity isn't.

I am kinda traumatized now... And in need to break before I figure out how am I actually going to deal with this and how to figure out what's happening under the hood. And my disdain for Unity and its weird behaviors only grows further.

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