diff options
Diffstat (limited to 'source/blender/blenkernel/intern/particle_system.c')
| -rw-r--r-- | source/blender/blenkernel/intern/particle_system.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/particle_system.c b/source/blender/blenkernel/intern/particle_system.c index db22e030821..526d54a97fa 100644 --- a/source/blender/blenkernel/intern/particle_system.c +++ b/source/blender/blenkernel/intern/particle_system.c @@ -3313,9 +3313,14 @@ static float collision_newton_rhapson(ParticleCollision *col, float radius, Part pce->inv_nor = -1; - /* Initial step size should be small, but not too small or floating point - * precision errors will appear. - z0r */ - dt_init = COLLISION_INIT_STEP * col->inv_total_time; + if (col->inv_total_time > 0.0f) { + /* Initial step size should be small, but not too small or floating point + * precision errors will appear. - z0r */ + dt_init = COLLISION_INIT_STEP * col->inv_total_time; + } + else { + dt_init = 0.001f; + } /* start from the beginning */ t0 = 0.f; |