6.837 Intro to Computer Graphics, Fall 2003
Assignment 3: Ray Tracing and Phong Materials

Updated files:

• hit.h
• light.h
• scene_parser.h
• scene_parser.C
• image.h     New: static Image* Compare(Image *img1, Image *img2);
• image.C

      If you're interested, here's the scene description file grammar used in this assignment.

Input Files

• scene1_exponent_variations.txt
• scene2_plane_sphere.txt
• scene3_colored_lights.txt
• scene4_reflective_sphere.txt
• scene5_transparent_bars.txt
• scene6_transparent_sphere_1.0.txt
• scene7_transparent_sphere_1.1.txt
• scene8_transparent_sphere_2.0.txt
• scene9_point_light_distance.txt
• scene10_point_light_circle.txt
• scene11_point_light_circle_d_attenuation.txt
• scene12_point_light_circle_d2_attenuation.txt

Sample Results

raytracer -input scene1_exponent_variations.txt -output out1.tga -size 400 400 -bounces 0 -weight 0.01
(2nd image shows Blinn Torrance Variation, scaled to match Phong)
out1.tga

raytracer -input scene2_plane_sphere.txt -output out2.tga -size 400 400 -bounces 0 -weight 0.01
out2.tga

raytracer -input scene3_colored_lights.txt -output out3.tga -size 400 400 -bounces 0 -weight 0.01
out3.tga

raytracer -input scene4_reflective_sphere.txt -output out4_0.tga -size 400 400 -bounces 0 -weight 0.01
out4_0.tga

raytracer -input scene4_reflective_sphere.txt -output out4_1.tga -size 400 400 -bounces 1 -weight 0.01
out4_1.tga

raytracer -input scene4_reflective_sphere.txt -output out4_2.tga -size 400 400 -bounces 2 -weight 0.01
out4_2.tga

raytracer -input scene4_reflective_sphere.txt -output out4_3.tga -size 400 400 -bounces 3 -weight 0.01
out4_3.tga

raytracer -input scene5_transparent_bars.txt -output out5_0.tga -size 400 400 -bounces 0 -weight 0.01
out5_0.tga

raytracer -input scene5_transparent_bars.txt -output out5_1.tga -size 400 400 -bounces 1 -weight 0.01
out5_1.tga

raytracer -input scene5_transparent_bars.txt -output out5_2.tga -size 400 400 -bounces 2 -weight 0.01
out5_2.tga

raytracer -input scene5_transparent_bars.txt -output out5_3.tga -size 400 400 -bounces 3 -weight 0.01
out5_3.tga

raytracer -input scene5_transparent_bars.txt -output out5_10_cs.tga -size 400 400 -bounces 10 -weight 0.01 -transparent_shadows
(transparent shadows extra credit)
out5_10_cs.tga

raytracer -input scene6_transparent_sphere_1.0.txt -output out6.tga -size 400 400 -bounces 5 -weight 0.01
(transparent shadows extra)
out6.tga

raytracer -input scene7_transparent_sphere_1.1.txt -output out7.tga -size 400 400 -bounces 5 -weight 0.01
(transparent shadows extra)
out7.tga

raytracer -input scene8_transparent_sphere_2.0.txt -output out8.tga -size 400 400 -bounces 5 -weight 0.01
(transparent shadows extra)
out8.tga

raytracer -input scene9_point_light_distance.txt -output out9.tga -size 400 400 -bounces 0 -weight 0.01
out9.tga

raytracer -input scene10_point_light_circle.txt -output out10.tga -size 400 400 -bounces 0 -weight 0.01
out10.tga

raytracer -input scene11_point_light_circle_d_attenuation.txt -output out11.tga -size 400 400 -bounces 0 -weight 0.1
out11.tga

raytracer -input scene12_point_light_circle_d2_attenuation.txt -output out12.tga -size 400 400 -bounces 0 -weight 0.1
out12.tga