git: 9front

ref: 78e2f69c0d7e4c17227e1ec0545cbb2a0ae1e96e
dir: /sys/src/libgeometry/utils.c/

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#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;
}