Ppmforge User Manual(0) Ppmforge User Manual(0) (NAME) ppmforge - (SYNOPSIS) ppmforge [-clouds] [-night] [-dimension dimen] [-hour hour] [-inclination|-tilt angle] [-mesh size] [-power factor] [-glaciers level] [-ice level] [-saturation sat] [-seed seed] [-stars fraction] [{-xsize|-width} width] [{-ysize|-height} height] (DESCRIPTION) Netpbm(1) . ppmforge << >> . (Richard F. Voss) . . ppmforge [1] [2] (Dietmar Saupe) . : . . . << >> (mesh size) -mesh . -dimension . . . . 0 1 . << >> -power . (1) 0.5 3 . 1 ( ). 0 1 . ppmforge : Netpbm 10.37 ( 2006) -- . Clouds () . 0.5 0.5 1.0 1.0 . Planet . 0.5 0.5 1.0 . . . . 0 1 -- . (ray-tracing) (ambient) (diffuse reflection) ( ). . Night . 256 (color mapped) . pnmquant ppmdither . ppmdither . pnmquant . -night -saturation . . -saturation 0 256 . pnmquant ppmdither pamdepth . newmaxval 63 31 15 pamdepth 256 . libnetpbm ( -quiet ) ppmforge : . -clouds . . clouds 2.15 (power scale factor) 0.75 . -dimension dimen dimen 0 5 ( ) . <<>> FFT . 2.4 2.15 . -glaciers level level . 0.75 . . . -hour hour ppmforge hour << >> . -hour 12 . 0 24 hour (0 4 20 24) . -hour 25 . -ice level level . 0.4 . -ice . 100 -glaciers ( 0.1) << >> . -inclination|-tilt angle angle -90 90 . <<>> () . 0 . . 23.5 0 -23.5 . -21.6 21.6 . -mesh size size size (FFT) . size . 256x256 256x256 FFT . RAM . ( 2.2 3) . -night . . -power factor << >> (power factor) FFT factor . 1.2 -clouds 0.75 . FFT 0 1 . . 2 ( ) 0.5 . ( 0 1 .) 1 . 1 FFT . -saturation sat -night . 125 . . sat (skyglow) . 250 <<>> . . ppmforge . . ppmforge . sat . -seed num (seed) num . ( -quiet ). . -seed . . -stars fraction ( ) ( -night) . fraction 100 . -xsize|-width width width . 256 . . ppmforge pamcut . -ysize|-height height height . 256 . . . . (segmented pointer) FFT . (SEE ALSO) pamcut(1) pamdepth(1) ppmdither(1) pnmquant(1) ppm(1) [1] Voss, Richard F., ``Random Fractal Forgeries,'' in Earnshaw et. al., Fundamental Algorithms for Computer Graphics, Berlin: Springer-Verlag, 1985. [2] Peitgen, H.-O., and Saupe, D. eds., The Science Of Fractal Images, New York: Springer Verlag, 1988. (AUTHORS) John Walker Autodesk SA Avenue des Champs-Montants 14b CH-2074 MARIN Suisse/Schweiz/Svizzera/Svizra/Switzerland Usenet:kelvin@Autodesk.com Fax:038/33 88 15 Voice:038/33 76 33 . << >> (as is) . (PLUGWARE!) <> MS-DOS Autodesk, Inc. Attn: Science Series, 2320 Marinship Way, Sausalito, CA 94965, USA . : (800) 688-2344 () (415) 332-2344 4886. : (415) 289-4718. <> . James Gleick Rudy Rucker . (DOCUMENT SOURCE) <> Netpbm HTML . : http://netpbm.sourceforge.net/doc/ppmforge.html netpbm documentation 27 March 2021 Ppmforge User Manual(0)