Commit: 96b9f45d7a104cce093da174a4b9d076250f326d
Author: Bastien Montagne
Date: Wed Mar 30 17:10:54 2016 +0200
Branches: blender-v2.77-release
https://developer.blender.org/rB96b9f45d7a104cce093da174a4b9d076250f326d
Partly fix (unreported) particles not updating correctly when changing settings.
Point-cached particles (those using simulations) would not update at all
outside of
first frame, due to PSYS_RECALC_RESET flag being ingnored in `system_step()`...
For some mysterious reasons, udate is still non-fully functional outside of
startframe
(e.g. changing face distribution between random and jittered), but at least
when choosing
'Vertices' you get particles from verts and not faces!
===================================================================
M source/blender/blenkernel/intern/particle_system.c
===================================================================
diff --git a/source/blender/blenkernel/intern/particle_system.c
b/source/blender/blenkernel/intern/particle_system.c
index e9ce532..87f39f2 100644
--- a/source/blender/blenkernel/intern/particle_system.c
+++ b/source/blender/blenkernel/intern/particle_system.c
@@ -3878,8 +3878,8 @@ static void system_step(ParticleSimulationData *sim,
float cfra)
BKE_ptcache_id_time(pid, sim->scene, 0.0f, &startframe,
&endframe, NULL);
- /* clear everythin on start frame */
- if (cfra == startframe) {
+ /* clear everything on start frame, or when psys needs full
reset! */
+ if ((cfra == startframe) || (psys->recalc & PSYS_RECALC_RESET))
{
BKE_ptcache_id_reset(sim->scene, pid,
PTCACHE_RESET_OUTDATED);
BKE_ptcache_validate(cache, startframe);
cache->flag &= ~PTCACHE_REDO_NEEDED;
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