diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2017-07-10 09:35:56 +0300 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2017-07-10 09:35:56 +0300 |
| commit | 2bd908ca6ebc97873ad94735facc1e8188a009b0 (patch) | |
| tree | 595d428fe2a71e5bbfa577c0dc0d3b49af35524b /source/blender/blenkernel/intern/curve.c | |
| parent | 2ad524bc83c3e67ac65c65ac2edb227848df2b21 (diff) | |
| parent | c055536d23085c2de1c18636e63a64d8c712896f (diff) | |
Merge branch 'master' into blender2.8
Diffstat (limited to 'source/blender/blenkernel/intern/curve.c')
| -rw-r--r-- | source/blender/blenkernel/intern/curve.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c index 8a6d9f57093..2863a925000 100644 --- a/source/blender/blenkernel/intern/curve.c +++ b/source/blender/blenkernel/intern/curve.c @@ -748,6 +748,7 @@ BezTriple *BKE_nurb_bezt_get_prev(Nurb *nu, BezTriple *bezt) BezTriple *bezt_prev; BLI_assert(ARRAY_HAS_ITEM(bezt, nu->bezt, nu->pntsu)); + BLI_assert(nu->pntsv == 1); if (bezt == nu->bezt) { if (nu->flagu & CU_NURB_CYCLIC) { @@ -769,6 +770,7 @@ BPoint *BKE_nurb_bpoint_get_prev(Nurb *nu, BPoint *bp) BPoint *bp_prev; BLI_assert(ARRAY_HAS_ITEM(bp, nu->bp, nu->pntsu)); + BLI_assert(nu->pntsv == 1); if (bp == nu->bp) { if (nu->flagu & CU_NURB_CYCLIC) { @@ -785,7 +787,7 @@ BPoint *BKE_nurb_bpoint_get_prev(Nurb *nu, BPoint *bp) return bp_prev; } -void BKE_nurb_bezt_calc_normal(struct Nurb *UNUSED(nu), struct BezTriple *bezt, float r_normal[3]) +void BKE_nurb_bezt_calc_normal(struct Nurb *UNUSED(nu), BezTriple *bezt, float r_normal[3]) { /* calculate the axis matrix from the spline */ float dir_prev[3], dir_next[3]; @@ -800,7 +802,7 @@ void BKE_nurb_bezt_calc_normal(struct Nurb *UNUSED(nu), struct BezTriple *bezt, normalize_v3(r_normal); } -void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_plane[3]) +void BKE_nurb_bezt_calc_plane(struct Nurb *nu, BezTriple *bezt, float r_plane[3]) { float dir_prev[3], dir_next[3]; @@ -837,7 +839,7 @@ void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_p normalize_v3(r_plane); } -void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, struct BPoint *bp, float r_normal[3]) +void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, BPoint *bp, float r_normal[3]) { BPoint *bp_prev = BKE_nurb_bpoint_get_prev(nu, bp); BPoint *bp_next = BKE_nurb_bpoint_get_next(nu, bp); @@ -860,6 +862,34 @@ void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, struct BPoint *bp, float r_nor normalize_v3(r_normal); } +void BKE_nurb_bpoint_calc_plane(struct Nurb *nu, BPoint *bp, float r_plane[3]) +{ + BPoint *bp_prev = BKE_nurb_bpoint_get_prev(nu, bp); + BPoint *bp_next = BKE_nurb_bpoint_get_next(nu, bp); + + float dir_prev[3] = {0.0f}, dir_next[3] = {0.0f}; + + if (bp_prev) { + sub_v3_v3v3(dir_prev, bp_prev->vec, bp->vec); + normalize_v3(dir_prev); + } + if (bp_next) { + sub_v3_v3v3(dir_next, bp->vec, bp_next->vec); + normalize_v3(dir_next); + } + cross_v3_v3v3(r_plane, dir_prev, dir_next); + + /* matches with bones more closely */ + { + float dir_mid[3], tvec[3]; + add_v3_v3v3(dir_mid, dir_prev, dir_next); + cross_v3_v3v3(tvec, r_plane, dir_mid); + copy_v3_v3(r_plane, tvec); + } + + normalize_v3(r_plane); +} + /* ~~~~~~~~~~~~~~~~~~~~Non Uniform Rational B Spline calculations ~~~~~~~~~~~ */ |