diff options
Diffstat (limited to 'source/blender/blenkernel/intern/effect.c')
| -rw-r--r-- | source/blender/blenkernel/intern/effect.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/source/blender/blenkernel/intern/effect.c b/source/blender/blenkernel/intern/effect.c index e3c4f12184e..acf906e3163 100644 --- a/source/blender/blenkernel/intern/effect.c +++ b/source/blender/blenkernel/intern/effect.c @@ -258,10 +258,10 @@ static void eff_tri_ray_hit(void *userdata, int index, const BVHTreeRay *ray, BV // get visibility of a wind ray static float eff_calc_visibility(Scene *scene, Object *ob, float *co, float *dir) { - CollisionModifierData **collobjs = NULL; + Object **collobjs = NULL; int numcollobj = 0, i; float norm[3], len = 0.0; - float visibility = 1.0; + float visibility = 1.0, absorption = 0.0; collobjs = get_collisionobjects(scene, ob, &numcollobj); @@ -275,7 +275,8 @@ static float eff_calc_visibility(Scene *scene, Object *ob, float *co, float *dir // check all collision objects for(i = 0; i < numcollobj; i++) { - CollisionModifierData *collmd = collobjs[i]; + Object *collob= collobjs[i]; + CollisionModifierData *collmd = (CollisionModifierData*)modifiers_findByType(collob, eModifierType_Collision); if(collmd->bvhtree) { @@ -287,8 +288,10 @@ static float eff_calc_visibility(Scene *scene, Object *ob, float *co, float *dir // check if the way is blocked if(BLI_bvhtree_ray_cast(collmd->bvhtree, co, norm, 0.0f, &hit, eff_tri_ray_hit, NULL)>=0) { + absorption= (collob->pd)? collob->pd->absorption: 0.0f; + // visibility is only between 0 and 1, calculated from 1-absorption - visibility *= MAX2(0.0, MIN2(1.0, (1.0-((float)collmd->absorption)*0.01))); + visibility *= CLAMPIS(1.0f-absorption, 0.0f, 1.0f); if(visibility <= 0.0f) break; |