PxrSeExpr

Introduction
This tutorial is a brief introduction to the use of the Getting Started

The Basic ExpressionThe basic expression produces a 4 by 4 grid of randomly colored squares. result = ccellnoise([s * 4, t * 4, 1]); result
Extending the Expression
The pattern can be easily controlled by using the first two float sliders of the PxrSeExpr node to
scale 's' and 't' and the the third float slider to offset the XYZ
values of the input vector  hence the use of ' result = ccellnoise( [ s * floatInput1, t * floatInput2, floatInput3 ] ); result Wiring PxrFractal into the forth float slider and modifying the expression generates some "interesting" effects  figure 6. result = ccellnoise([s * floatInput1, t * floatInput2, floatInput3 * floatInput4]); result
Using the pattern to drive a displacement can also result in some interesting effects.

© 2002 Malcolm Kesson. All rights reserved.