% echo eyep 0 .5 -1 lookp .5 .5 -3 heightfield depth.plot texture image front.rle | rayshade > depth.rle =4 =127 =126 =125 =124 =123 255=7in 255=1.0255 =255 255=10in 255=1.0255 =255 255==255 =0 255=2.25cm 255=1.0255 =2550