Assignment 4 – Marble Texturing

For this assignment I used Perlin’s noise function to get noise for my texture. I used the noise in a turbulence function: turbulence = noise(p) + 0.5noise(2p) + 0.25noise(4p) + …

The color mapping for the blue marble is from a Raydeon demo for openGL…it really looks more clay like than marble.

Here’s the black and white version with some more tweaking of the function.

The next images were done using a sin function, which called the turbulence function.

0.5 * ( sin( (period * p.x) + (turbulence(p)*distortion) ) + 1.0 )