diff options
Diffstat (limited to 'source/blender/blenkernel/intern/mesh.c')
| -rw-r--r-- | source/blender/blenkernel/intern/mesh.c | 70 |
1 files changed, 66 insertions, 4 deletions
diff --git a/source/blender/blenkernel/intern/mesh.c b/source/blender/blenkernel/intern/mesh.c index dec7556392f..03df0c28944 100644 --- a/source/blender/blenkernel/intern/mesh.c +++ b/source/blender/blenkernel/intern/mesh.c @@ -533,7 +533,7 @@ BMesh *BKE_mesh_to_bmesh(Mesh *me, Object *ob) bm = BM_mesh_create(&bm_mesh_allocsize_default); - BM_mesh_bm_from_me(bm, me, TRUE, ob->shapenr); + BM_mesh_bm_from_me(bm, me, true, ob->shapenr); return bm; } @@ -1360,7 +1360,7 @@ int BKE_mesh_nurbs_displist_to_mdata(Object *ob, ListBase *dispbase, int i; for (i = 0; i < 3; i++, mloopuv++) { - mloopuv->uv[0] = (mloop[i].v - startvert)/(float)(dl->nr - 1); + mloopuv->uv[0] = (mloop[i].v - startvert) / (float)(dl->nr - 1); mloopuv->uv[1] = 0.0f; } } @@ -1430,8 +1430,8 @@ int BKE_mesh_nurbs_displist_to_mdata(Object *ob, ListBase *dispbase, /* find uv based on vertex index into grid array */ int v = mloop[i].v - startvert; - mloopuv->uv[0] = (v / dl->nr)/(float)orco_sizev; - mloopuv->uv[1] = (v % dl->nr)/(float)orco_sizeu; + mloopuv->uv[0] = (v / dl->nr) / (float)orco_sizev; + mloopuv->uv[1] = (v % dl->nr) / (float)orco_sizeu; /* cyclic correction */ if ((i == 0 || i == 1) && mloopuv->uv[1] == 0.0f) @@ -2993,6 +2993,68 @@ float BKE_mesh_calc_poly_area(MPoly *mpoly, MLoop *loopstart, } } +/** + * This function takes the difference between 2 vertex-coord-arrays + * (\a vert_cos_src, \a vert_cos_dst), + * and applies the difference to \a vert_cos_new relative to \a vert_cos_org. + * + * \param vert_cos_src reference deform source. + * \param vert_cos_dst reference deform destination. + * + * \param vert_cos_org reference for the output location. + * \param vert_cos_new resulting coords. + */ +void BKE_mesh_calc_relative_deform( + const MPoly *mpoly, const int totpoly, + const MLoop *mloop, const int totvert, + + const float (*vert_cos_src)[3], + const float (*vert_cos_dst)[3], + + const float (*vert_cos_org)[3], + float (*vert_cos_new)[3]) +{ + const MPoly *mp; + int i; + + int *vert_accum = MEM_callocN(sizeof(*vert_accum) * totvert, __func__); + + memset(vert_cos_new, '\0', sizeof(*vert_cos_new) * totvert); + + for (i = 0, mp = mpoly; i < totpoly; i++, mp++) { + const MLoop *loopstart = mloop + mp->loopstart; + int j; + + for (j = 0; j < mp->totloop; j++) { + int v_prev = (loopstart + ((mp->totloop + (j - 1)) % mp->totloop))->v; + int v_curr = (loopstart + j)->v; + int v_next = (loopstart + ((j + 1) % mp->totloop))->v; + + float tvec[3]; + + barycentric_transform( + tvec, vert_cos_dst[v_curr], + vert_cos_org[v_prev], vert_cos_org[v_curr], vert_cos_org[v_next], + vert_cos_src[v_prev], vert_cos_src[v_curr], vert_cos_src[v_next] + ); + + add_v3_v3(vert_cos_new[v_curr], tvec); + vert_accum[v_curr] += 1; + } + } + + for (i = 0; i < totvert; i++) { + if (vert_accum[i]) { + mul_v3_fl(vert_cos_new[i], 1.0f / (float)vert_accum[i]); + } + else { + copy_v3_v3(vert_cos_new[i], vert_cos_org[i]); + } + } + + MEM_freeN(vert_accum); +} + /* Find the index of the loop in 'poly' which references vertex, * returns -1 if not found */ int poly_find_loop_from_vert(const MPoly *poly, const MLoop *loopstart, |