diff options
Diffstat (limited to 'tests/interactive/curve_eval.h')
| -rw-r--r-- | tests/interactive/curve_eval.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/tests/interactive/curve_eval.h b/tests/interactive/curve_eval.h index a7724839bc1..8dbe657b333 100644 --- a/tests/interactive/curve_eval.h +++ b/tests/interactive/curve_eval.h @@ -37,15 +37,27 @@ typedef struct BPoint { float radius, pad; /* user-set radius per point for beveling etc */ } BPoint; +/* Caches the value of basis functions evaluated at a given u coordinate + * so that a surface patch only has to evaluate once per row. We could do + * this with columns, too, but at a much worse space/time tradeoff. + */ +typedef struct BSplineCache { + float u; + int iu; + float Nu[NURBS_MAX_ORDER][NURBS_MAX_ORDER]; +} BSplineCacheU; + extern "C" { void BKE_bspline_knot_calc(int flags, int pnts, int order, float knots[]); int BKE_bspline_nz_basis_range(float u, float *knots, int num_pts, int order); void BKE_bspline_basis_eval(float u, int i, float *U, int num_knots, int order, int nd, float out[][NURBS_MAX_ORDER]); + void BKE_bspline_curve_eval(float u, float *U, int num_pts, int order, BPoint *P, int stride, int nd, BPoint *out, bool premultiply_weight=false); void BKE_nurbs_curve_eval(float u, float *U, int num_pts, int order, BPoint *P, int stride, int nd, BPoint *out); void BKE_bspline_surf_eval(float u, float v, int pntsu, int orderu, float *U, int pntsv, int orderv, float *V, - BPoint *P, int nd, BPoint *out); + BPoint *P, int nd, BPoint *out, + bool premultiply_weights=false, BSplineCacheU *ucache=NULL); } inline void madd_v4_v4fl(float r[4], const float a[4], float f) |