Due: Before class, November 7th, 2024.

In this mini homework, you’ll explore and observe different material and light properties we discussed in Tuesday and Thursday's lecture.

Part 1

Your goal is to find examples of each of these four material types in real life. Once you’ve found them, take a picture of each example. To confirm that the photos are original, include a piece of paper with "15362/662 F24" written on it in each image.

Material Properties to Find and Photograph:

• Subsurface Scattering: Find a material where light scatters beneath its surface
• Roughness: Find a material that has a visibly rough surface that diffuses light
• Glossiness: Look for a surface with a high gloss, where specular reflection is prominent.
• Glass with Different Fresnel Coefficients: Find glass or transparent surface that demonstrate varying levels of reflection based on the angle of incidence

Part 2

For this task, look for examples in the environment that illustrate the following light properties. Capture a photo or provide a detailed description if a photo isn’t possible. Include a piece of paper with "15362/662 F24" written on it in any images.

Light Properties to Find and Photograph:

• Ray Marching: Find light moving through a medium where it gradually dims or scatters
• Refraction with Total Internal Reflection: Find where light bends through a transparent material and hits the surface at an angle that causes it to reflect back internally.

Part 3

For the two objects above, explain at least one key property that visually distinguishes these two materials (think beyond color). Describe how this property affects the appearance of each object and why it might lead to the observed differences in lighting or texture.