Fast Path Traced Reflections for Augmented Reality

A computer based method for fast generation of path traced reflections of a virtual object, augmented into a real world image, utilizing a raster graphics pipeline, the method comprising the following steps:

• a. identifying reflecting area in the real world image for creating reflection of an augmented object;
• b. shooting a projection of primary rays from a camera onto the identified reflective area in the real world image, generating a cluster of primary hit points;
• c. shooting projection of carrier rays at the augmented object through the cluster of generated primary hit points,
• whereas only those carrier rays that intersect the primary hit points are used for generating secondary rays;
• d. generating a render target texture which is an intersection result between secondary rays and the augmented object;
• e. revealing and sampling light values in the render target texture at the points of intersection between secondary rays and augmented object;
• f. feeding the sampled light values at the intersection points into their respective primary hit points;
• and
• g. reconstructing reflection of the augmented object on the identified reflective area, from the fed light values.