REQUREMENTS: COMPUTER GRAPHCS QUESTON

Explain in general the main heading below with subheadings.

RAY TRACNG ray tracing rendering ray tracing vs. projective methods step by step ray tracing

WIEVING RAYS wevng rays vevng rays useful facts vieving rays respective view fitting of an image ray generation orthographic view ray generation

RAY-OBJECT INTERSECTION ray-object ntersections ray-sphere ntersectons ray-triangle intersection plane representation early termination ray-polygon intersection multiple object intersection

Shading shading lambertian shading blinn-phong shading ambiant shading complete(phong) lighting model