fart/shapes/Sphere.cc
Josh Holtrop 206ede3304 initial import from /gvsu/cs658 repository
git-svn-id: svn://anubis/fart/trunk@2 7f9b0f55-74a9-4bce-be96-3c2cd072584d
2009-01-18 01:44:28 +00:00

23 lines
723 B
C++

#include "Sphere.h"
#include "util/Solver.h"
Sphere::Sphere(double radius)
{
m_radius = radius;
}
Solver::Result Sphere::intersect(const Ray & ray)
{
Solver::Result res;
QuadraticSolver solver(1.0,
2 * ( ray.getOrigin()[0] * ray.getDirection()[0]
+ ray.getOrigin()[1] * ray.getDirection()[1]
+ ray.getOrigin()[2] * ray.getDirection()[2] ),
ray.getOrigin()[0] * ray.getOrigin()[0]
+ ray.getOrigin()[1] * ray.getOrigin()[1]
+ ray.getOrigin()[2] * ray.getOrigin()[2] );
Solver::Result quadSolutions = solver.solve();
return res;
}