Output from Lab4

I have changed my Lab4 program so that I can show either the red, green or blue component in grayscale. It also saves all three colors into a ppm file. These pictures are shown below. To get them I used this view file:

VRP .2 1 .2
lookat 0 0 0
VUP 0 0 1

PRP 0 0 10

window -1.5 -1.5 1.5 1.5
front 2
back -2
viewport 0 0 1 1

ray
maxrays 10
hitself 0.001

debug 1

ambient .2 .2 .2

light 1 .5 .7  .5 .6 .6
light -.7 .3 1  .5 .6 .6

showcolor 0

and this scene file

quad
  M 1 0 0 0 1 0 0 0 1
  trans 0 0 -1
  diffuse .5 .3 .3
  specular .7 100
  reflective .5
  refractive 0
  medium .9
quad
  M 0 0 1  0 1 0  -1 0 0
  trans -1 0 0
  diffuse .3 .5 .2
  specular .5 50
  reflective 0.5
  refractive 0
  medium 1.1
superellipsoid
  M .5 0 0  0 .5 0  0 0 .5
  trans 0 -0.2 -0.2
  diffuse .1 .5 .3
  specular .7 100
  reflective 0.5
  refractive 0
  medium 1.1
superellipsoid
   M 0.3 0 0  0 0.3 0  0 0 0.3
   trans -0.2 0.4 0.3
   diffuse .1 .2 .8
   specular .7 100
   reflective 0
   refractive 0.8
   medium 1.1

Here is the color ppm file (reduced to 8-bit color)

Here are the three components in grayscale:

red
green
blue