NYU, Graduate Division, Computer Science Computer Graphics by Ana Neves Are they UFOS (OVNIS) ??? Using Professor Perlin's code for Ray tracing Textures are so cool !!! Using Professor Perlin's noise algorithms   Source code: PixApplet.java; ImprovedNoise.java; Shape.java Sphere.java Material.java SimpleRayTracer1.java SimpleRayTracer2.java