Particles in Particle Edit Mode get added in completely wrong location #47038
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Reference: blender/blender#47038
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When adding particles in Particle Edit mode using the Add brush, they appear in entirely different location. This used to work in 2.70, in 2.71 it broke somehow.
Sometimes this can be fixed by disabling the subsurf modifier that comes before the particle system. However, having subsurf and particles work together is vital!
oti_particle_edit_mode.blend
See attached file. This file should have a character base mesh already with a particle system, and the Add Particles tool enabled. To repeat the error, simply add particles by drawing on the mesh.
System Information
Tested using Blender Institute Linux workstation. Tracked down past working version using the windows builds from download.blender.org
Blender Version
Broken: 2.71 and after
Worked: pre 2.70
Changed status to: 'Open'
Added subscriber: @eyecandy
Added subscriber: @dfelinto
This bug was introduced in
eca6264a
Added subscriber: @mont29
Antony, could you look at this?
I'll try. No promises, the system there is pretty broken.
Issue comes from the fact we are using only
mesh_get_derived_deform()
inbrush_add()
… So painting is done without subsurf modifier at all - andadd_pars- [x].num_dmcache
is set wint deform-only indices (which sounds pretty much useless).I tried using
mesh_get_derived_final()
instead, nowadd_brush()
produces valid mapped index values innum_dmcache
, but shows nothing on screen (which makes me believe code drawing particles later on expects deform-only indices, but then, why isn’t it mapping correctly to complete DM?). Still investigating…@Psy-Fi if you could have a look at my patch and see whether I did not do complete crap… ;)
@eyecandy can you please check the patch (D1685) and confirm it works for you (and does not break something else :| )?
Added subscriber: @Psy-Fi
This issue was referenced by
aad24468e2
Changed status from 'Open' to: 'Resolved'