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Particle effector falloff maxdist etc. didn't work like it was supposed to.

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This commit is contained in:
Janne Karhu 2009-04-09 23:43:25 +00:00
parent 5031fe982e
commit 6121d4b9fe
1 changed files with 11 additions and 13 deletions
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24
source/blender/blenkernel/intern/effect.c
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@ -298,24 +298,22 @@ static float wind_func(struct RNG *rng, float strength)
return ret;
}
/* maxdist: zero effect from this distance outwards (if usemax) */
/* mindist: full effect up to this distance (if usemin) */
/* power: falloff with formula 1/r^power */
static float falloff_func(float fac, int usemin, float mindist, int usemax, float maxdist, float power)
{
if(!usemin)
mindist= 0.0f;
/* first quick checks */
if(usemax && fac > maxdist)
return 0.0f;
if(fac < mindist) {
if(usemin && fac < mindist)
return 1.0f;
}
else if(usemax) {
if(fac>maxdist || (maxdist-mindist)<=0.0f)
return 0.0f;
fac= (fac-mindist)/(maxdist-mindist);
return 1.0f - (float)pow((double)fac, (double)power);
}
else
return pow((double)1.0f+fac-mindist, (double)-power);
if(!usemin)
mindist = 0.0;
return pow((double)1.0+fac-mindist, (double)-power);
}
static float falloff_func_dist(PartDeflect *pd, float fac)