Maths

Pure maths: factorising numbers, operators in between addition, multiplication and powers, half functions, and how fractals work.

Fluid dynamics galaxy

Trying out a galaxy effect using an FFT-based fluid solver. The force field on the liquid is gravitational.

29 March 2005

Galaxy simulation

Using a fast Fourier transform for gravity simulation to beat O(N2) force calculations.

1 January 2005

Flash bouncing ball

Bouncing a ball off any shaped surfaces using hit test probes.

21 November 2004

Cloth simulation

Simulating a cloth falling and slipping over objects

13 October 1999

Fixed point maths in x86 assembly

Fractional maths with whole-number instructions, for fast 3D graphics on the PC.

27 November 1997