delay
framerate:fps
Random waves in continuous nonlinear PDE (excitable medium
Barkley's model).
a = 0.8, b = 0.01, ε = 0.02.
gl.CLAMP_TO_EDGE parameter is used for NPOT texture,
therefore boundary are non periodic.
This scrpt uses the OES_texture_float extension.
Simulations on GPUupdated 17 Dec 2010