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| author | Daniel Genrich <daniel.genrich@gmx.net> | 2014-02-06 21:44:05 +0400 |
|---|---|---|
| committer | Daniel Genrich <daniel.genrich@gmx.net> | 2014-02-06 21:55:08 +0400 |
| commit | 28936a415076dbded4ec55cf94c49e8d0abe4035 (patch) | |
| tree | 7fccc9f1cea7e2fe91bf0a4f6669e3ae44af0c19 /source/blender/blenkernel/intern/implicit.c | |
| parent | e2541f87bcef84481aabf19e15664cfdac452cf7 (diff) | |
Patch T31269: Add sewing seams to cloth simulation
Description:
--------------------------
Use loose edges marked as seams as sewing springs.
Usage:
-------------------------
All this patch does is set the rest length to 0 and the stiffness to 1 for springs for loose edges marked as seams so that during the cloth simulation they will be brought together.
Example Video:
-------------------------
http://www.youtube.com/watch?v=-Y_bC0gjoM0
Original Patch by thesleepless (+ git patch by codemanx)
Thank you!
Diffstat (limited to 'source/blender/blenkernel/intern/implicit.c')
| -rw-r--r-- | source/blender/blenkernel/intern/implicit.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/source/blender/blenkernel/intern/implicit.c b/source/blender/blenkernel/intern/implicit.c index af057b6698d..d328c90aab3 100644 --- a/source/blender/blenkernel/intern/implicit.c +++ b/source/blender/blenkernel/intern/implicit.c @@ -1260,7 +1260,7 @@ DO_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s, } // calculate force of structural + shear springs - if ((s->type & CLOTH_SPRING_TYPE_STRUCTURAL) || (s->type & CLOTH_SPRING_TYPE_SHEAR)) { + if ((s->type & CLOTH_SPRING_TYPE_STRUCTURAL) || (s->type & CLOTH_SPRING_TYPE_SHEAR) || (s->type & CLOTH_SPRING_TYPE_SEWING) ) { if (length > L || no_compress) { s->flags |= CLOTH_SPRING_FLAG_NEEDED; @@ -1271,7 +1271,16 @@ DO_INLINE void cloth_calc_spring_force(ClothModifierData *clmd, ClothSpring *s, k = scaling / (clmd->sim_parms->avg_spring_len + FLT_EPSILON); // TODO: verify, half verified (couldn't see error) - mul_fvector_S(stretch_force, dir, k*(length-L)); + if(s->type & CLOTH_SPRING_TYPE_SEWING) { + // sewing springs usually have a large distance at first so clamp the force so we don't get tunnelling through colission objects + float force = k*(length-L); + if(force > clmd->sim_parms->max_sewing) { + force = clmd->sim_parms->max_sewing; + } + mul_fvector_S(stretch_force, dir, force); + } else { + mul_fvector_S(stretch_force, dir, k*(length-L)); + } VECADD(s->f, s->f, stretch_force); |