Path: utzoo!utgpu!cs.utexas.edu!usc!ucsd!ucbvax!psy.oxford.ac.uk!u87rpb From: u87rpb@psy.oxford.ac.uk (Ray Bellis) Newsgroups: alt.sources Subject: OFF renderer using SIPP. Message-ID: <9101291139.AA08535@brain.psych.> Date: 29 Jan 91 11:39:22 GMT Sender: daemon@ucbvax.BERKELEY.EDU Lines: 156 Keywords: tar uuencode Here's a little something I knocked up earlier this week. /*- * * offtoppm.c * * (C) R. P. Bellis 1991 * * Take an OFF format object and render it into a ppm file. * Objects with *.pcol or *.ipcol data are rendered using a * shader which places the polygon colour at each vertex * using the texture coordinates (could also be used for * *.vcol files but there aren't very many of them at the * moment, so I haven't written stuff to handle them yet). * * Usage: * offtoppm [scale] * * Requires: * SIPP polygon preprocessor library * OFF Object and C library * PBM+ for conversion to your favourite file format. * * Bugs/ToDo: * Image size hard coded to 256 x 256. * Viewing parameters hard coded. * Can only handle "fff" format colours and vectors. * Assumes `default' constants are in "fff" format. * Doesn't handle vertex colours. * Doesn't know about OFF diffuse reflection coefficent. * Back faces not handled properly (really a SIPP bug). * * License: * Do with this what you will, just don't claim that * you wrote it. * */ --8<--8<-- Cut here --8<--8<-- table !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_ begin 644 offtoppm.tar.Z M'YV0+EZ\,6.&SALX<-J\ ,"PH<.'$"-*G$BQHL6*(#+>J%$#!(",(&;$B.$1a M)(@8,DJ:7 DC(XV-*&MLG-$RHPT8,&Y\O,BSI\^?0(,*'4JTJ-&C2),J51IPa M8,&#"5\T";.FC)DT;,HLW4H4I T:-%2&'"GV9,J/*VW&" OB98V8&V%TU/A6a MIT>N>//JW ())&3IDQ!N6D*3,'1!HW(.Z@23,@I2:! 1'&a M#1D03XP842"831HQ5/'LPL%4*0DL1*$a M2I$O29P,2= #Q LT;]J4>3&GC&DW85ZDSO.BSAPYK=V\CET&N'#BQK\P22*$a MN7/HTJE;?YQ]>_?O+TR+4:!@B!$F01PQ10+NM? $""TD00(*P0U7W'')#9&"a M DP0\5^ Q;86 M,+-@@>L>M)\2$"DPAQ7+N.6400FVX,(8"3PBA!('-J0A5a MBV]0R!Z-"+(Q1QH(]>A4CVTH($1R/-K((G\+'NE$"CH0N&",2DR8P()#2(C@a M&R L"$0*7:+@'X "@KE@A1>6&2:59J(@(HFOE=&9#@I@MO8'6G085F?<(SQ!AL@%,JG"T#Z"S 9VX;!F6$@D"N;a M89]Y]]@9G$$+PAQHA/%P9)-5UBX;88PQF[ZYP?%O'F>\ 9G!O)V[+0AR>FR'a MN724@8?%$KM!,2>,.C,;2L6QAVM)QO;JR3KRT=F%LL1!UGS/$"%6\@PAMXEY8D:,MS%TN#a M'G*3,3E\QE^R^1X;(B8 @9A"!_5[&LJ U1EP@F!EB"C6'%IHD",JK@W0:a M P;9F"$,2Z/#"0CE!L5UA@X_9-AC0'!#@NC0:O,',PE0Q"@P#!.ZZ3"?K>9KYWAD45[0WN -/B --LE#.J=\,YS7%$\V<\.#'R'Da MG.)4)SG;F;&'%1&<_+'6$[Q%!,:,@4_[5,,.8"0:*,CA(#13FPK@<(0R1(=Oa M"X6"P0:J "O2@3*.T1MMVCB&->"K.B!H#@P&:E&,3B%H9OB";&!W,92JU)\Aa M!<$>0 #%\@ !GRK:0QP>A(7\'0/-<5!3ET@5)H2M0\@Z -%904"*DRF,:2\a M6#W-Y9@SW-$PC>%9#\^EN$)1+:-P$Z'RJ%:K7YU4#F8 P4K_J8(4S &E(2L#a MWX#X&,7)Z3/5P6)8M[H^W)0UK)R3#F>R*K:>V0QH0GL#T8S&F&$YU9:#?>L2a MP_:RNH'$9XC-S= QT.;MKW (PU@Ca M]J,0JM%F7Z #'KX !^^@ 05@4D$U%1"_-'Q&7>8R&BM:X\HUEa MW%0WB-@=J!7 )3 [;%>( UTE>+'8,I'QZ;OAG<- B_L9%9#WB2(;Z!#^)3 5a MH'>@>_CK95RZ5DJ6X0Y?>#!%3>*&#X<8I2X@H1@6H]'FH %9TUIA]OZX+BFa MH 4^4#&+Z3!0$IOXP2Z8PR;'L#35Q/3%,7XI2VD,5Y'=V ="/DR1Y=!CD)08a MQ$ >PPR.#&,.PY3)Y74RCK5 "B,6T#F7V,)91C%X7G$$.a MD&F.'>)\YBROV07MW65S[A!G,JAR:^UQ*QI>2TY6:=;&K71-W5WMIa M&/ >L+H"0#"EB''>E,J#)&5@&K25@&#&O86@9%a MJ!SHH% XY!H.(P8)K,^E B?0.L[#YA,1$A9G=34U#YL,=D8"&E-K#0&4-0LHa M<)N=5A18RW8:TW9 ^39K5X>T.2V( 9@RG):,F*%XZC(#"KAI+CGP301%D,-!a MSY7JUDJ/=2[@@AM$$&H-F\1F^4*!# INDE%KV-<'A4.UO85C(Q1&<;^.LV3@a MY4F('V3=!@>)L07;'(_# <>_'GFM0Q['A,74Y"B/^++I$(8XFX0*T,Y-R7\=a M\X/@/-HLOQB^Z. 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