jim-fx/webgl-sand

Ideas

1. bind framebuffer a to texture;

2. render update to framebuffer b

3. render framebuffer b to canvas

4. switch frambuffers

Ideas

Rule:

| 0 | 0 | 0 | | 0 | 0 | 0 | | 0 | 1 | 0 | --> | 0 | 0 | 0 | | 0 | 1 | 0 | --> | 0 | 0 | 0 |