diff options
-rw-r--r-- | source/blender/physics/intern/BPH_mass_spring.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/source/blender/physics/intern/BPH_mass_spring.cpp b/source/blender/physics/intern/BPH_mass_spring.cpp index 19c3f3793f8..30a8478e0e4 100644 --- a/source/blender/physics/intern/BPH_mass_spring.cpp +++ b/source/blender/physics/intern/BPH_mass_spring.cpp @@ -394,8 +394,8 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s, scaling = parms->bending + s->stiffness * fabsf(parms->max_bend - parms->bending);
kb = scaling / (20.0f * (parms->avg_spring_len + FLT_EPSILON));
- scaling = parms->bending_damping;
- cb = scaling / (20.0f * (parms->avg_spring_len + FLT_EPSILON));
+ // Fix for [#45084] for cloth stiffness must have cb proportional to kb
+ cb = kb * parms->bending_damping;
BPH_mass_spring_force_spring_bending(data, s->ij, s->kl, s->restlen, kb, cb, s->f, s->dfdx, s->dfdv);
#endif
@@ -413,8 +413,8 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s, scaling = s->stiffness * parms->bending;
kb = scaling / (20.0f * (parms->avg_spring_len + FLT_EPSILON));
- scaling = parms->bending_damping;
- cb = scaling / (20.0f * (parms->avg_spring_len + FLT_EPSILON));
+ // Fix for [#45084] for cloth stiffness must have cb proportional to kb
+ cb = kb * parms->bending_damping;
/* XXX assuming same restlen for ij and jk segments here, this can be done correctly for hair later */
BPH_mass_spring_force_spring_bending_angular(data, s->ij, s->kl, s->mn, s->target, kb, cb);
|