diff options
Diffstat (limited to 'point.c')
| -rw-r--r-- | point.c | 10 |
1 files changed, 4 insertions, 6 deletions
@@ -43,8 +43,7 @@ divpt2(Point2 p, double s) Point2 lerp2(Point2 a, Point2 b, double t) { - if(t < 0) t = 0; - if(t > 1) t = 1; + t = fclamp(t, 0, 1); return Pt2( flerp(a.x, b.x, t), flerp(a.y, b.y, t), @@ -78,7 +77,7 @@ normvec2(Point2 v) /* * the edge function, from: * - * Juan Pineda, A Parallel Algorithm for Polygon Rasterization, + * Juan Pineda, “A Parallel Algorithm for Polygon Rasterization”, * Computer Graphics, Vol. 22, No. 8, August 1988 */ int @@ -97,7 +96,7 @@ edgeptcmp(Point2 e0, Point2 e1, Point2 p) } /* - * algorithm by W. Randolph Franklin + * (PNPOLY) algorithm by W. Randolph Franklin */ int ptinpoly(Point2 p, Point2 *pts, ulong npts) @@ -152,8 +151,7 @@ divpt3(Point3 p, double s) Point3 lerp3(Point3 a, Point3 b, double t) { - if(t < 0) t = 0; - if(t > 1) t = 1; + t = fclamp(t, 0, 1); return Pt3( flerp(a.x, b.x, t), flerp(a.y, b.y, t), |