MBR model (modified Beeler-Reuter, Calcium dynamics speedup by 2).
2D spiral waves

dt dx it delay fps
On 2D plane Vm values are displayed by the red color. 2 x values are displayed by the green color. This script uses simple explicit algorithm and 512512 float32 textures with the CLAMP_TO_EDGE boundary conditions. It makes 2 it time steps per frame.

2D plane wave

Heart rhythms     updated 19 Jan 2012