diff options
Diffstat (limited to 'source/blender/physics/intern/implicit_blender.c')
| -rw-r--r-- | source/blender/physics/intern/implicit_blender.c | 30 |
1 files changed, 4 insertions, 26 deletions
diff --git a/source/blender/physics/intern/implicit_blender.c b/source/blender/physics/intern/implicit_blender.c index 5b1d83a3eef..0fd2a1f35cc 100644 --- a/source/blender/physics/intern/implicit_blender.c +++ b/source/blender/physics/intern/implicit_blender.c @@ -1424,33 +1424,16 @@ static float calc_nor_area_tri(float nor[3], const float v1[3], const float v2[3 return normalize_v3(nor); } -static float calc_nor_area_quad(float nor[3], const float v1[3], const float v2[3], const float v3[3], const float v4[3]) -{ - float n1[3], n2[3]; - - sub_v3_v3v3(n1, v1, v3); - sub_v3_v3v3(n2, v2, v4); - - cross_v3_v3v3(nor, n1, n2); - return normalize_v3(nor); -} - /* XXX does not support force jacobians yet, since the effector system does not provide them either */ -void BPH_mass_spring_force_face_wind(Implicit_Data *data, int v1, int v2, int v3, int v4, const float (*winvec)[3]) +void BPH_mass_spring_force_face_wind(Implicit_Data *data, int v1, int v2, int v3, const float (*winvec)[3]) { const float effector_scale = 0.02f; float win[3], nor[3], area; float factor; - // calculate face normal and area - if (v4) { - area = calc_nor_area_quad(nor, data->X[v1], data->X[v2], data->X[v3], data->X[v4]); - factor = effector_scale * area * 0.25f; - } - else { - area = calc_nor_area_tri(nor, data->X[v1], data->X[v2], data->X[v3]); - factor = effector_scale * area / 3.0f; - } + /* calculate face normal and area */ + area = calc_nor_area_tri(nor, data->X[v1], data->X[v2], data->X[v3]); + factor = effector_scale * area / 3.0f; world_to_root_v3(data, v1, win, winvec[v1]); madd_v3_v3fl(data->F[v1], nor, factor * dot_v3v3(win, nor)); @@ -1460,11 +1443,6 @@ void BPH_mass_spring_force_face_wind(Implicit_Data *data, int v1, int v2, int v3 world_to_root_v3(data, v3, win, winvec[v3]); madd_v3_v3fl(data->F[v3], nor, factor * dot_v3v3(win, nor)); - - if (v4) { - world_to_root_v3(data, v4, win, winvec[v4]); - madd_v3_v3fl(data->F[v4], nor, factor * dot_v3v3(win, nor)); - } } static void edge_wind_vertex(const float dir[3], float length, float radius, const float wind[3], float f[3], float UNUSED(dfdx[3][3]), float UNUSED(dfdv[3][3])) |