ref: e7d099ac43c22f4c38399694c5bc81086b89f1f6
dir: /sys/src/libgeometry/utils.c/
#include <u.h>
#include <libc.h>
#include <geometry.h>
double
flerp(double a, double b, double t)
{
return a + (b - a)*t;
}
double
fberp(double a, double b, double c, Point3 bc)
{
return dotvec3(Vec3(a,b,c), bc);
}
double
fclamp(double n, double min, double max)
{
return n < min? min: n > max? max: n;
}