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Interpolation and distribution of Children Particles breaks
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Description

Ubuntu 16.04

If you open the attached file in latest git you'll see that if you enter edit mode or particles edit mode and go back to object mode, then the distribution and interpolation of the children particles gets messed up.

I tired opening the file in 2.77a official and it works ok.

Also, I don't know if it is related or not, but if you add the default hair particles to the default cube, you will notice that one of the faces does not have particles on it. Again, this doesn't happen in 2.77a.

Event Timeline

Juan Pablo Bouza (jpbouza) created this task.
Juan Pablo Bouza (jpbouza) raised the priority of this task from to Needs Triage by Developer.
Bastien Montagne (mont29) claimed this task.

Regression from rB019ce363b01bba0afe1 (and later refactor of this area too), caused by off-by-one error in reworked binary search util… Pretty much incredible this went unnoticed for two months (not to mention the fact I missed this during own tests)!

Bastien Montagne (mont29) triaged this task as Confirmed, Medium priority.Jun 11 2016, 2:25 PM