You are here: Home Resources cgSource Instructional Materials Slide Sets data 1997_Mapping 45.txt
Document Actions


by WebSysAdmin last modified 2006-09-25 13:48

Click here to get the file

Size 1 kB - File type text/plain

File contents

We can change the frequency and amplitude to vary the nature of the noise. The middle image in this slide depicts the function


We can vary the effect of the noise by using the expression

noise(f*x, f*y, f*z) * a

where f controls the frequency and a controls the amplitude. Noise having large amplitudes will result in a greater range of colors. Noise having high frequency will contain more detail. In the slide there are four images surrounding the depiction of the original noise function. Which image portrays noise having lower frequency and lower amplitude than the original? Which has higher frequency and lower amplitude?

Powered by Plone CMS, the Open Source Content Management System

This site conforms to the following standards: