1. An image processing apparatus for performing an intersection test for rendering of a ray tracing scheme for a three dimensional (3D) image, comprising: a first calculator to perform a ray-plane test to determine whether a ray intersects a plane including a primitive and to perform a barycentric test to determine whether the ray intersects the primitive using at least one processor; and a second calculator to calculate a hit point, based on the ray which intersects the primitive, using at least one processor.