CS 431/636 - Advanced Rendering Techniques

Modify your shading equation to be more in line with the Hall model.

• k_s - specular coefficient
• I_Lj - color of light j
• C_s - specular color of object
• cos(φ) - H ⋅ N
• n - specular highlight (shininess) parameter
• k_d - diffuse coefficient
• C_d - diffuse color of object
• cos(ϑ) - N ⋅ L
• I_r - color value returned by reflected ray
• I_a - color of ambient light
• k_s + k_d = 1

Create a scene that contains at least two spheres and three non-box triangle meshes, with at least one of each being reflective, and at least one white light. Also add a "floor" that your shadows can be seen on. Be sure to position your objects in way that something is reflected in your reflective objects (at least one sphere and one mesh). Also use adaptive supersampling with two levels of subdivision.

Post your image (in TIFF or PNG format) in its native resolution (i.e. don't set their size in html) on a web site, with the associated computation time and shading parameter values.

Tell me what file contains your reflection and shadow code.

Upload your software to WebCT.

E-mail the URL of the web site to david AT cs DOT drexel DOT edu before the deadline (5/25/09).

You can find SMF triangle mesh models here.

Last modified on May 30, 2008.