Consider ray tracing a scene containing only a sphere defined by its centre [cx, cy, cy]...

   

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Consider ray tracing a scene containing only a sphere defined by its centre [cx, cy, cy] and its radius r. i) A particular ray intersects the sphere at position [x, y, z]. In terms of x, y, z. cx, cy and cz, what is the surface normal vector at the point of intersection? ii) If the scene contains only a single distant point light source, describe whether each of the two types of shadowing will be present in the scene Consider ray tracing a scene containing only a sphere defined by its centre [cx, cy, cy] and its radius r. i) A particular ray intersects the sphere at position [x, y, z]. In terms of x, y, z. cx, cy and cz, what is the surface normal vector at the point of intersection? ii) If the scene contains only a single distant point light source, describe whether each of the two types of shadowing will be present in the scene

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Ray Tracing Sphere Intersection and Shadowing i Surface Normal Vector Given a ray intersecting the s... View the full answer