# Demonstration of absorbing, periodic, and reflective boundaries graphics opengl dim 2 species red green max_mol 400 difc red 3 difc green 3 color red 1 0 0 color green 0 1 0 time_start 0 time_stop 200 time_step 0.01 low_wall 0 0 a high_wall 0 100 r boundaries 1 0 100 p mol 300 red u u mol 30 green 50 5 end_file