These images show the results of using the RenderMan Shading Language (RSL) to write a variety of special effects surface shaders. The notes and RSL code accompanying each image explain how each effect was achieved.

Cross

This Cross shader was written in cutter using the following code:

if(s >= 0.35 && s <= .65)
    surfcolor = color(0.2,0.8,1.0);
else 
    surfcolor = color(0.6,0.6,0.6);
if(t >= 0.35 && t <= .65)
    surfcolor = color(0.2,0.8,1.0);

The Cross was made with two blue stripes and filling everything else with gray.

Entire Shader file
Circle

This Circle shader was written in cutter using the following code:

if ((s-.5)*(s-.5) + (t-.5)*(t-.5) <.17)
    surfcolor = color(1.0,0.6,0.0);
else
    surfcolor = color(0.0,0.0,1.0);
Entire Shader file
Crescent

This resent shader was written in cutter using the circle code above twice. With the green circle being offset.

if ((s-.5)*(s-.5) + (t-.5)*(t-.5) <.17)
    surfcolor = color(0.4,0.2,1.0);
else
    surfcolor = color(0.6,1.0,0.0);
if ((s-.4)*(s-.4) + (t-.4)*(t-.4) <.17)
    surfcolor = color(0.6,1.0,0.0);

Entire Shader file
Diagonal

This diagonal line shader was written in cutter using the following code:

if(s >= 1-t)
    surfcolor = color(0.4,0.4,0.0);
else
    surfcolor = color(.5,.4,.1);

Entire Shader file
Bomb

This is a bomb shader. It was written in cutter using the above mentioned methods.

Entire Shader file