1. Sara Mathieson Fall 2016 Smith College
CSC 240 Computer Graphics
Sara Mathieson
Fall 2016
Smith College

2. Outline: 12/5 3D printing (Guest: Eric Jensen)
Ray tracing practice problems (cont)
Blender Lab (Bezier curves)
Collision Detection (next time)
Final Project: due Thurs Dec 14
3D printing instructions: on website
Office Hours: Mon 4-5pm (015 Ford)
Tues 4-5pm (346 Ford)

3. Credit: https://www.scratchapixel.com/lessons/3d-basic-rendering/
Ray tracing recap
Expensive to compute these rays that don’t reach the eye
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4. Ray tracing recap Instead trace primary ray from eye to object,
then shadow ray from object to light source
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5. Ray tracing recap
Cast a ray from the camera through each pixel on the viewport
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6. Ray tracing recap
Check if shadow rays intersect other objects before the light source
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7. Ray tracing recap Demo without shadow effects
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