# Simple bouncing molecules in a 3-D system graphics opengl_good dim 3 species red green max_mol 200 boxsize 20 frame_thickness 3 frame_color 0.6 0.6 0 grid_thickness 1 grid_color 0 0 0 background_color 1 0.8 0.9 tiff_name graphics3 display_size red 1 display_size green(all) 2 color red 0.8 0 0 color green(all) 0 0.8 0 difc red 3 difc green 1 time_start 0 time_stop 100 time_step 0.1 boundaries 0 0 100 r boundaries 1 0 100 r boundaries 2 0 100 r mol 100 red 20 30 20 mol 50 green u u u end_file