Whitted-Style Ray-Tracing

Ray Tree

• Basic idea of ray-tracing: construct ray paths from the light sources to the eye, but follow those paths “backwards”

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Setup

1. Primary Rays
   ⇒ Camera Model

2. Secondary rays and shadow feelers
   ⇒ Secondary Rays

3. Combining all incoming light into “one” outgoing light
   ⇒ Lighting models

Limitations