Commit: 7ea29d69dfa79258c9f4c4e92b5c469606ff90dd
Author: Bastien Montagne
Date: Sat Mar 26 17:41:56 2016 +0100
Branches: blender-v2.77-release
https://developer.blender.org/rB7ea29d69dfa79258c9f4c4e92b5c469606ff90dd
Fix T47935: Hair particles; The display percentage parameter breaks after a
render is done.
Follow same logic in `psys_render_restore` as in `psys_render_set` - if hair and
display percentage is not 100%, we have to recompute particles...
With regular 'emitter' particles just hiding some is fine (though using random
here
will not give a precise proportion...).
===================================================================
M source/blender/blenkernel/intern/particle.c
===================================================================
diff --git a/source/blender/blenkernel/intern/particle.c
b/source/blender/blenkernel/intern/particle.c
index d02308b..364bdbb 100644
--- a/source/blender/blenkernel/intern/particle.c
+++ b/source/blender/blenkernel/intern/particle.c
@@ -720,13 +720,19 @@ void psys_render_restore(Object *ob, ParticleSystem *psys)
disp = psys_get_current_display_percentage(psys);
if (disp != render_disp) {
- PARTICLE_P;
+ /* Hair can and has to be recalculated if everything isn't
displayed. */
+ if (psys->part->type == PART_HAIR) {
+ psys->recalc |= PSYS_RECALC_RESET;
+ }
+ else {
+ PARTICLE_P;
- LOOP_PARTICLES {
- if (psys_frand(psys, p) > disp)
- pa->flag |= PARS_NO_DISP;
- else
- pa->flag &= ~PARS_NO_DISP;
+ LOOP_PARTICLES {
+ if (psys_frand(psys, p) > disp)
+ pa->flag |= PARS_NO_DISP;
+ else
+ pa->flag &= ~PARS_NO_DISP;
+ }
}
}
}
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