Non-transitory computer-readable medium, image processing system, image processing method, and image processing apparatus

Abstract

An image processing system according to an exemplary embodiment renders objects in a virtual space in a frame buffer, and with a direction from a virtual camera to a position in the virtual space relating to a pixel of interest in a drawn image as an incidence direction, calculates a reflection direction based on the incidence direction and a normal direction. The image processing system calculates as a ray tracing direction a direction obtained by making a correction toward an inside of a screen in the calculated reflection direction, traces a ray along the ray tracing direction, and adds a color of a collision position of the ray to a color of the pixel of interest.