diff options
Diffstat (limited to 'source/blender/physics/intern/BPH_mass_spring.cpp')
| -rw-r--r-- | source/blender/physics/intern/BPH_mass_spring.cpp | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/source/blender/physics/intern/BPH_mass_spring.cpp b/source/blender/physics/intern/BPH_mass_spring.cpp index 668e40e71cc..6ea2eeca6f8 100644 --- a/source/blender/physics/intern/BPH_mass_spring.cpp +++ b/source/blender/physics/intern/BPH_mass_spring.cpp @@ -67,7 +67,7 @@ static int cloth_count_nondiag_blocks(Cloth *cloth) for (link = cloth->springs; link; link = link->next) { ClothSpring *spring = (ClothSpring *)link->link; switch (spring->type) { - case CLOTH_SPRING_TYPE_BENDING_ANG: + case CLOTH_SPRING_TYPE_BENDING_HAIR: /* angular bending combines 3 vertices */ nondiag += 3; break; @@ -346,14 +346,29 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s) s->flags &= ~CLOTH_SPRING_FLAG_NEEDED; - // calculate force of structural + shear springs - if ((s->type & CLOTH_SPRING_TYPE_STRUCTURAL) || (s->type & CLOTH_SPRING_TYPE_SEWING)) { + /* Calculate force of bending springs. */ + if (s->type & CLOTH_SPRING_TYPE_BENDING) { +#ifdef CLOTH_FORCE_SPRING_BEND + float k, scaling; + + s->flags |= CLOTH_SPRING_FLAG_NEEDED; + + scaling = parms->bending + s->ang_stiffness * fabsf(parms->max_bend - parms->bending); + k = scaling * s->restlen * 0.1f; /* Multiplying by 0.1, just to scale the forces to more reasonable values. */ + + BPH_mass_spring_force_spring_angular(data, s->ij, s->kl, s->pa, s->pb, s->la, s->lb, + s->restang, k, parms->bending_damping); +#endif + } + + /* Calculate force of structural + shear springs. */ + if (s->type & (CLOTH_SPRING_TYPE_STRUCTURAL | CLOTH_SPRING_TYPE_SEWING)) { #ifdef CLOTH_FORCE_SPRING_STRUCTURAL float k_tension, scaling_tension; s->flags |= CLOTH_SPRING_FLAG_NEEDED; - scaling_tension = parms->tension + s->stiffness * fabsf(parms->max_tension - parms->tension); + scaling_tension = parms->tension + s->lin_stiffness * fabsf(parms->max_tension - parms->tension); k_tension = scaling_tension / (parms->avg_spring_len + FLT_EPSILON); if (s->type & CLOTH_SPRING_TYPE_SEWING) { @@ -365,7 +380,7 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s) } else { float k_compression, scaling_compression; - scaling_compression = parms->compression + s->stiffness * fabsf(parms->max_compression - parms->compression); + scaling_compression = parms->compression + s->lin_stiffness * fabsf(parms->max_compression - parms->compression); k_compression = scaling_compression / (parms->avg_spring_len + FLT_EPSILON); BPH_mass_spring_force_spring_linear(data, s->ij, s->kl, s->restlen, @@ -381,7 +396,7 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s) s->flags |= CLOTH_SPRING_FLAG_NEEDED; - scaling = parms->shear + s->stiffness * fabsf(parms->max_shear - parms->shear); + scaling = parms->shear + s->lin_stiffness * fabsf(parms->max_shear - parms->shear); k = scaling / (parms->avg_spring_len + FLT_EPSILON); BPH_mass_spring_force_spring_linear(data, s->ij, s->kl, s->restlen, k, parms->shear_damp, @@ -394,7 +409,7 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s) s->flags |= CLOTH_SPRING_FLAG_NEEDED; - scaling = parms->bending + s->stiffness * fabsf(parms->max_bend - parms->bending); + scaling = parms->bending + s->lin_stiffness * fabsf(parms->max_bend - parms->bending); kb = scaling / (20.0f * (parms->avg_spring_len + FLT_EPSILON)); // Fix for [#45084] for cloth stiffness must have cb proportional to kb @@ -403,7 +418,7 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s) BPH_mass_spring_force_spring_bending(data, s->ij, s->kl, s->restlen, kb, cb); #endif } - else if (s->type & CLOTH_SPRING_TYPE_BENDING_ANG) { + else if (s->type & CLOTH_SPRING_TYPE_BENDING_HAIR) { #ifdef CLOTH_FORCE_SPRING_BEND float kb, cb, scaling; @@ -413,14 +428,14 @@ BLI_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s) * this is crap, but needed due to cloth/hair mixing ... * max_bend factor is not even used for hair, so ... */ - scaling = s->stiffness * parms->bending; + scaling = s->lin_stiffness * parms->bending; kb = 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); + BPH_mass_spring_force_spring_bending_hair(data, s->ij, s->kl, s->mn, s->target, kb, cb); #if 0 { |