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fix .. hum not really a bug but waste of CPU

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remove 6 multiplications and one square root in core spring calculation .. called for every solver step try
This commit is contained in:
Jens Ole Wund 2007-12-27 22:48:30 +00:00
parent f4015d9fce
commit fbc743f332
1 changed files with 2 additions and 4 deletions
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6
source/blender/blenkernel/intern/softbody.c
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@ -2307,9 +2307,8 @@ static void softbody_calc_forces(Object *ob, float forcetime, float timenow)
}
if (( (sb->totpoint-a) == bs->v1) ){
actspringlen= VecLenf( (bproot+bs->v2)->pos, bp->pos);
VecSubf(sd,(bproot+bs->v2)->pos, bp->pos);
Normalize(sd);
actspringlen=Normalize(sd);
/* friction stuff V1 */
VecSubf(velgoal,bp->vec,(bproot+bs->v2)->vec);
@ -2330,9 +2329,8 @@ static void softbody_calc_forces(Object *ob, float forcetime, float timenow)
}
if (( (sb->totpoint-a) == bs->v2) ){
actspringlen= VecLenf( (bproot+bs->v1)->pos, bp->pos);
VecSubf(sd,bp->pos,(bproot+bs->v1)->pos);
Normalize(sd);
actspringlen=Normalize(sd);
/* friction stuff V2 */
VecSubf(velgoal,bp->vec,(bproot+bs->v1)->vec);