diff options
Diffstat (limited to 'source/blender/blenkernel/intern/particle_distribute.c')
| -rw-r--r-- | source/blender/blenkernel/intern/particle_distribute.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/particle_distribute.c b/source/blender/blenkernel/intern/particle_distribute.c index fe84504327c..1ef4d005f0d 100644 --- a/source/blender/blenkernel/intern/particle_distribute.c +++ b/source/blender/blenkernel/intern/particle_distribute.c @@ -39,6 +39,7 @@ #include "BLI_jitter.h" #include "BLI_kdtree.h" #include "BLI_math.h" +#include "BLI_math_geom.h" #include "BLI_rand.h" #include "BLI_sort.h" #include "BLI_task.h" @@ -213,14 +214,22 @@ static void distribute_grid(DerivedMesh *dm, ParticleSystem *psys) copy_v3_v3(co2, co1); co2[a] += delta[a] + 0.001f*d; co1[a] -= 0.001f*d; - + + struct IsectRayPrecalc isect_precalc; + float ray_direction[3]; + sub_v3_v3v3(ray_direction, co2, co1); + isect_ray_tri_watertight_v3_precalc(&isect_precalc, ray_direction); + /* lets intersect the faces */ for (i=0; i<totface; i++,mface++) { copy_v3_v3(v1, mvert[mface->v1].co); copy_v3_v3(v2, mvert[mface->v2].co); copy_v3_v3(v3, mvert[mface->v3].co); - bool intersects_tri = isect_axial_line_segment_tri_v3(a, co1, co2, v2, v3, v1, &lambda); + bool intersects_tri = isect_ray_tri_watertight_v3(co1, + &isect_precalc, + v1, v2, v3, + &lambda, NULL); if (intersects_tri) { if (from==PART_FROM_FACE) (pa+(int)(lambda*size[a])*a0mul)->flag &= ~PARS_UNEXIST; @@ -231,7 +240,10 @@ static void distribute_grid(DerivedMesh *dm, ParticleSystem *psys) if (mface->v4 && (!intersects_tri || from==PART_FROM_VOLUME)) { copy_v3_v3(v4, mvert[mface->v4].co); - if (isect_axial_line_segment_tri_v3(a, co1, co2, v4, v1, v3, &lambda)) { + if (isect_ray_tri_watertight_v3(co1, + &isect_precalc, + v1, v2, v3, + &lambda, NULL)) { if (from==PART_FROM_FACE) (pa+(int)(lambda*size[a])*a0mul)->flag &= ~PARS_UNEXIST; else |