In this lab you'll use a couple cool tricks to simulate various surfaces of a sphere. You'll render your image using the sample rt program. The sample ray file tricks.ray will help you get started.

The first objective is to make a brass ball, a silver ball, and a red plastic ball. Refer to the color-plates in Woo for examples. Use gimp color selector to help choose the right colors for the diffuse and spectral reflectivity.

The second objective is to make an orange. Use the gimp color selector to determine a good color for the diffuse reflectivity. Use gimp to create a noise image for bump mapping.

Create bmp images for each of your results and link then from your graphics page.