#! /bin/sh # This is a shell archive. Remove anything before this line, then unpack # it by saving it into a file and typing "sh file". To overwrite existing # files, type "sh file -c". You can also feed this as standard input via # unshar, or by typing "sh 'Doc/Globals' <<'END_OF_FILE' X/* X * Variables shared by the various libraries: X */ X XFloat XRSAbstmp X X Temporary variable used by the fabs() macro to keep X expressions from being evaluated twice (e.g., X fabs(cos(x)) is expanded to ((x=cos(x) < 0 ? -x : x) X rather than ((x=cos(x) < 0 ? -cos(x) : cos(x)) ). X Could be removed by making fabs a function or not minding X if expressions are evaluated twice. X XSampleInfo XSampling X X Variables used to control sampling. X Used in conjunction with a ray's sample number X (ray->sample) to determine how to sample, for example, X extended light sources. X X/* X * Variables shared by modules in the rayshade application: X */ XRSCamera XCamera X Camera definition. Used in viewing, setup, and parsing. X XRSScreen XScreen X Screen information. Used in viewing, setup, and parsing. X XRSOptions XOptions X X Options of all sorts. X XRSStats XStats X X Statistical information. X XMedium XTopMedium X X "Air" description (index of refraction and atmospheric effects). X Used in viewing, parsing, and ShadeRay. X XLight * XLights X X Array of defined lights. Used in parsing and in shade(). X X/* X * Application-provided functions: X */ XSurface * XGetShadingSurf(hitlist) XHitList *hitlist X X Given a hitlist, return the surface to be used in shading. X Xint XTraceRay(ray, hitlist, mindist, maxdist) XRay *ray; XHitList *hitlist; XFloat mindist, *maxdist; X X Intersect the top-level object with the given ray. X Probably as simple as: X return intersect(World, ray, hitlist, mindist, maxdist) X Xvoid XRLerror(level, pattern, arg1, arg2, arg3) Xint level; Xchar *pattern, *arg1, *arg2, *arg3; X X Error-reporting function. 'level' indicates the severity of X the error (see libcommon/error.h). 'pattern' and the X args are suitable for printing via: X fprintf(stderr, patter, arg1, arg2, arg3); X Note that as the args are cast to char *'s, printing, for X example, several doubles, will not work. (Being more X rigorous about it would require varargs or something similar.) END_OF_FILE if test 1927 -ne `wc -c <'Doc/Globals'`; then echo shar: \"'Doc/Globals'\" unpacked with wrong size! fi # end of 'Doc/Globals' fi if test -f 'Doc/Guide/height.tex' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'Doc/Guide/height.tex'\" else echo shar: Extracting \"'Doc/Guide/height.tex'\" \(1846 characters\) sed "s/^X//" >'Doc/Guide/height.tex' <<'END_OF_FILE' X\chapter{Height Field Files} X XThis appendix describes the format of the files that store data Xfor the height field primitive. XThe format is an historical relic; a better format is needed. X XHeight field data is stored in binary form. XThe first record in the file is a X32-bit integer giving the square root of number of data Xpoints in the file. XWe'll call this number Xthe size of the height field. X XThe size is Xfollowed by altitude ($z$) values stored as 32-bit Xfloating point values. The 0th value in the file specifies the $z$ Xcoordinate Xof the lower-left corner of the height field (0, 0). XThe next Xspecifies the Z coordinate for $(1/(size-1), 0)$. The last specifies the Xcoordinate for $(1., 1.)$. In other words, the $i^{th}$ value Xin the heightfield file specifies the $z$ coordinate for the point Xwhose $x$ coordinate is X$(i \% size) / (size -1)$, and whose X$y$ coordinate is $(i / size) / (size -1)$. XNon-square height fields may be rendered by specifying altitude values Xless than or equal to the magic value X$-1000$. Triangles that have any vertex less than Xor equal in altitude to this value are not rendered. X XWhile this file format is compact, it sacrifices portability for Xease of use. While creating and handling height field files is Xsimple, transporting a height field from one machine to another Xis problematical due to the fact that differences in byte order Xand floating-point format between machines is not taken into Xaccount. X XThese problems could be circumvented by writing the height field file Xin a fixed-point format, taking care to write the bytes that Xencode a given value in a consistent way from machine to machine. XAn even better idea would be to write a set of tools for Xmanipulating arbitrary 2D arrays of floating-point values in a compact, Xportable way, allowing for comments and the like in the file\ldots END_OF_FILE if test 1846 -ne `wc -c <'Doc/Guide/height.tex'`; then echo shar: \"'Doc/Guide/height.tex'\" unpacked with wrong size! fi # end of 'Doc/Guide/height.tex' fi if test -f 'Examples/csg.ray' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'Examples/csg.ray'\" else echo shar: Extracting \"'Examples/csg.ray'\" \(2330 characters\) sed "s/^X//" >'Examples/csg.ray' <<'END_OF_FILE' X/* X * csg wood block (apologies to Hofstadter) X * X * Eric Haines X * X */ Xname letter_c Xdifference X list X cylinder 1 0 0 -1.0 0 0 1.0 X disc 1 0 0 -1.0 0 0 -1 X disc 1 0 0 1.0 0 0 1 X end X union X list X cylinder 0.55 0 0 -1.2 0 0 1.2 X disc 0.55 0 0 -1.2 0 0 -1 X disc 0.55 0 0 1.2 0 0 1 X end X box 0. -.3 -1.2 1.2 0.3 1.2 X end Xend X X Xname s1 /* outer top part of s */ Xlist X cylinder 0.6125 -0.3875 0.3875 -1.0 -0.3875 0.3875 1.0 X disc 0.6125 -0.3875 0.3875 -1.0 0 0 -1 X disc 0.6125 -0.3875 0.3875 1.0 0 0 1 X cylinder 0.6125 0.3875 -0.3875 -1.0 0.3875 -0.3875 1.0 X disc 0.6125 0.3875 -0.3875 -1.0 0 0 -1 X disc 0.6125 0.3875 -0.3875 1.0 0 0 1 Xend X Xname s3 /* all inner part of s */ Xunion X list X cylinder 0.1625 -0.3875 0.3875 -1.2 -0.3875 0.3875 1.2 X disc 0.1625 -0.3875 0.3875 -1.2 0 0 -1 X disc 0.1625 -0.3875 0.3875 1.2 0 0 1 X cylinder 0.1625 0.3875 -0.3875 -1.2 0.3875 -0.3875 1.2 X disc 0.1625 0.3875 -0.3875 -1.2 0 0 -1 X disc 0.1625 0.3875 -0.3875 1.2 0 0 1 X end X box -.3875 -1.2 -1.2 .3875 1.2 1.2 Xend X Xname letter_s Xunion X union X union X difference X object s1 X object s3 X end X X box -0.3875 0.55 -1 1 1 1 X end X box -0.3875 -0.225 -1 0.3875 0.225 1 X end X box -1 -1 -1 0.3875 -0.55 1 Xend X X Xname g3 /*all inner of g */ Xunion X list X cylinder 0.55 0 0 -1.2 0 0 1.2 X disc 0.55 0 0 -1.2 0 0 -1 X disc 0.55 0 0 1.2 0 0 1 X end X box 0. 0. -1.2 1.2 0.425 1.2 Xend X Xname letter_g Xunion X difference X list /* outer part of g */ X cylinder 1.0 0 0 -1.0 0 0 1.0 X disc 1 0 0 -1.0 0 0 -1 X disc 1 0 0 1.0 0 0 1 X end X object g3 X end X box 0.25 -0.3375 -1.2 1.05 0.1125 1.2 Xend X Xname csg Xdifference X difference X object letter_s rotate 1 0 0 90 X object letter_c rotate 1 0 0 90 rotate 0 0 1 90 X scale 1.2 0.8 0.8 X end X object letter_g scale 0.8 0.8 1.2 X /* scaling here is to avoid coincident surfaces */ Xend X Xsurface white ambient .1 .1 .1 diffuse .5 .5 .5 X Xsurface s1 ambient .5 .4 .3 diffuse .25 .2 .15 Xsurface lgreen ambient .07 .1 .07 X diffuse .42 .6 .42 X specular .28 .4 .28 specpow 10 X Xplane white 0 0 -3 0 0 1 Xplane white 0 3 0 0 -1 0 Xplane white -3 0 0 1 0 0 X Xobject s1 csg /* texture wood scale 3 3 3*/ X Xlight 0.8 directional 0 0 1 Xlight 0.7 directional 0 -1 0 Xlight 0.6 directional 1 0 0 X Xbackground .1 .3 .8 Xeyep 10. -13 8. Xlookp 0 0 -0.3 Xup 0 0 1 Xfov 20. END_OF_FILE if test 2330 -ne `wc -c <'Examples/csg.ray'`; then echo shar: \"'Examples/csg.ray'\" unpacked with wrong size! fi chmod +x 'Examples/csg.ray' # end of 'Examples/csg.ray' fi if test -f 'Examples/mtv.ray' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'Examples/mtv.ray'\" else echo shar: Extracting \"'Examples/mtv.ray'\" \(1943 characters\) sed "s/^X//" >'Examples/mtv.ray' <<'END_OF_FILE' X/* X * Logo for a certain drek-filled cable channel. X * Rod Bogart, 10/90 X */ Xeyep 0 20 8 Xlookp 0 0 3.5 Xfov 30 Xbackground .1 .3 .8 Xlight 1 1 1 directional 0.5 1.5 2 Xscreen 100 100 Xmaxdepth 10 Xsurface red X ambient .2 .05 .05 X diffuse .8 .1 .05 X specular .05 .05 .05 specpow 20 Xsurface green X ambient .05 .2 .05 X diffuse .1 .8 .05 X specular .05 .05 .05 specpow 20 Xsurface blue X ambient .05 .05 .2 X diffuse .1 .1 .8 X specular .05 .05 .05 specpow 20 Xsurface white X ambient .2 .2 .2 X diffuse 1. 1. 1. X specular 0.2 0.2 0.2 specpow 18 Xsurface glass X ambient .02 .02 .02 X diffuse 0.1 0.1 0.1 X specular 0.8 0.8 0.8 specpow 200 X transp 1. index 1.5 Xsurface redglass X ambient .52 .02 .02 X transp 1. index 1.0 Xsurface greenglass X ambient .02 .52 .02 X transp 1 index 1.0 Xsurface m_surf specpow 20 specular 1. 1. 1. transp .8 reflect .1 index 1.4 Xsurface tv_surf X ambient .2 .05 .05 X diffuse .8 .1 .05 X specular .05 .05 .05 specpow 20 Xplane white 0 0 -0.05 0 0 1 texture checker diffuse .8 .1 .05 scale 2 2 2 X Xname general_cyl Xlist X cylinder tv_surf 0.25 0 0 0 0 0 1 X disc tv_surf 0.25 0 0 1 0 0 1 X disc tv_surf 0.25 0 0 0 0 0 -1 Xend X Xname thingy Xgrid 6 6 6 X union /* M */ X list /* m legs */ X box m_surf 1.0 -1 0 4.2 1 7.0 X box m_surf -4.2 -1 0 -1 1 7.0 X /*box m_surf 2.6 0 3.5 1.6 1 3.5 X box m_surf -2.6 0 3.5 1.6 1 3.5 */ X end X difference X box m_surf (-4.5^0.5) -1 (-4.5^0.5) X (4.5^0.5) 1 (4.5^0.5) X translate (4.5^0.5) 0 (4.5^0.5) X rotate 0 1 0 -45 translate 0 0 2 X box m_surf -1 -1 -1 1 1 1 X translate 1 0 1 X rotate 0 1 0 -45 translate 0 0 6 X end X end /* M */ X /* TV */ X object general_cyl scale 1 1 3.6 rotate 0 1 0 -64 translate 0.2 0 3.4 X object general_cyl scale 1 1 4.0 rotate 0 1 0 3 translate -1.8 0 0.9 X object general_cyl scale 1 1 2.7 rotate 0 1 0 15 translate -3.2 0 1.5 X object general_cyl scale 1 1 5.0 rotate 0 1 0 -25 translate -3.2 0 1.5 Xend X Xobject thingy rotate 0 0 1 -40 END_OF_FILE if test 1943 -ne `wc -c <'Examples/mtv.ray'`; then echo shar: \"'Examples/mtv.ray'\" unpacked with wrong size! fi # end of 'Examples/mtv.ray' fi if test -f 'etc/malloc.sgi' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'etc/malloc.sgi'\" else echo shar: Extracting \"'etc/malloc.sgi'\" \(1812 characters\) sed "s/^X//" >'etc/malloc.sgi' <<'END_OF_FILE' X[ Mike Gigante notes that when rendering exteremely large datasets X (consisting primarily of triangles in his case), one may use the X 'mallopt()' routine on certain machines to improve performance X significantly (to say the least). -- CEK ] X X XFrom mg@godzilla.cgl.rmit.OZ.AU Tue Aug 21 14:35:08 1990 XReceived: from godzilla.cgl.rmit.oz.au by weedeater.math.yale.edu via SMTP; Tue, 21 Aug 90 14:35:08 -0400 XReceived: by godzilla XDate: Wed, 22 Aug 90 05:16:40 EST XFrom: mg@godzilla.cgl.rmit.OZ.AU (Mike Gigante) XMessage-Id: <9008211916.4715@godzilla> XTo: craig@weedeater.math.yale.edu XSubject: malloc stuff XStatus: RO X XCraig, Xwe spoke after the ray tracing sig about malloc stuff. Here is that Xstuff I promised to send you. X X1) include in your main program X2) make the following code the *first* executable statements X X#ifdef sgi X /* X * try to tune the malloc stuff. First thing to note is that most X * allocated blocks (at least for triangles) are less than 200 bytes... X */ X mallopt(M_MXFAST, 200); X /* X * allocate a big chunk at a time - esp since we are going to use LOTS X * of memory! X */ X mallopt(M_BLKSZ, 65536); X /* X * don't try too hard when looking for free'd memory to re-use. This X * avoids the heavy paging penalty we have seen... In fact don't look X * at all! X */ X mallopt(M_MXCHK, 0); X#endif X Xand wow! *HUGE* improvments for large models. Just to remind you, it was Xa difference of 88 min CPU time over 10 hour period (just to read a model) Xvs about 2 minutes cpu/elapsed. Because of the M_MXCHK call, the working Xset was larger but it didn't make much difference.. X XBTW, you should check the 200 bytes in the M_MXFAST call. Make it larger Xthan the common malloc sizes (say for mallocing triangle/poly structs). X XHope this is useful. X XMike Gigante, RMIT END_OF_FILE if test 1812 -ne `wc -c <'etc/malloc.sgi'`; then echo shar: \"'etc/malloc.sgi'\" unpacked with wrong size! fi # end of 'etc/malloc.sgi' fi if test -f 'libray/libcommon/common.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libcommon/common.h'\" else echo shar: Extracting \"'libray/libcommon/common.h'\" \(2279 characters\) sed "s/^X//" >'libray/libcommon/common.h' <<'END_OF_FILE' X/* X * common.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: common.h,v 4.0 91/07/17 14:30:18 kolb Exp Locker: kolb $ X * X * $Log: common.h,v $ X * Revision 4.0 91/07/17 14:30:18 kolb X * Initial version. X * X */ X#ifndef COMMON_H X#define COMMON_H X X#include X#include X#ifdef I_STDLIB X#include X#endif X#include "config.h" X Xtypedef double Float; X X#if (VOIDFLAGS & 8) == 8 Xtypedef void * voidstar; X#else Xtypedef char * voidstar; X#endif X X#include "expr.h" X#include "vector.h" X#include "ray.h" X#include "color.h" X#include "transform.h" X#include "error.h" X X#ifndef TRUE X#define TRUE 1 X#endif X X#ifndef FALSE X#define FALSE 0 X#endif X X/* X * Various useful constants and macros. X */ X X/* X * Minimum vector length & fp value. X * Modify depending upon Float typedef. X */ X#define EPSILON (Float)0.00001 X X#ifndef PI X#define PI 3.14159265358979323846 X#endif X#define TWOPI (2. * PI) X#define INV_TWOPI (1. / TWOPI) X#define deg2rad(x) (Float)(x * PI/180.) X#define LNHALF (-.69314718) X X#ifndef NULL X# define NULL 0 X#endif X X#define UNSET -1 X X/* X * Some systems, such as the RS6000, have fast fabs already defined. X */ X#ifndef fabs Xextern Float RSabstmp; X#define fabs(x) ((RSabstmp=x) < 0 ? -RSabstmp : RSabstmp) X#endif X X#ifdef MULTIMAX X/* X * On the multimax, allocate large pieces of memory as shared memory. X */ Xextern char *share_malloc(), *share_calloc(); X#else X/* X * Otherwise, malloc is malloc, etc. X */ X#define share_malloc(x) Malloc(x) X#define share_calloc(x,y) Calloc(x,y) X#endif X X/* X * Close enough for us. X */ X#define equal(a, b) (fabs((a) - (b)) < EPSILON) X/* X * Maximum/Minimum functions X */ X#define max(a, b) ((a) > (b) ? (a) : (b)) X#define min(a, b) ((a) < (b) ? (a) : (b)) X Xextern voidstar Malloc(), Calloc(); Xextern char *strsave(); Xextern double drand48(); /* just in case */ X X#endif /* COMMON_H */ END_OF_FILE if test 2279 -ne `wc -c <'libray/libcommon/common.h'`; then echo shar: \"'libray/libcommon/common.h'\" unpacked with wrong size! fi # end of 'libray/libcommon/common.h' fi if test -f 'libray/libcommon/transform.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libcommon/transform.h'\" else echo shar: Extracting \"'libray/libcommon/transform.h'\" \(1857 characters\) sed "s/^X//" >'libray/libcommon/transform.h' <<'END_OF_FILE' X/* X * transform.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: transform.h,v 4.0 91/07/17 14:32:33 kolb Exp Locker: kolb $ X * X * $Log: transform.h,v $ X * Revision 4.0 91/07/17 14:32:33 kolb X * Initial version. X * X */ X#ifndef TRANSFORM_H X#define TRANSFORM_H X Xtypedef voidstar TransRef; Xtypedef TransRef TransCreateFunc(); X X/* X * Transformation 'matrix'. X */ Xtypedef struct RSMatrix { X Float matrix[3][3]; /* Rotation matrix */ X Vector translate; /* Translation */ X} RSMatrix; X Xtypedef struct { X TransRef (*create)(); /* Create it... */ X void (*propagate)(); /* Propagate changes to parameters */ X} TransMethods; X X/* X * Transformation structure X */ Xtypedef struct Trans { X TransRef tr; /* transform data */ X TransMethods *methods; /* transform methods */ X ExprAssoc *assoc; /* animated parameters */ X short animated; /* is the transformation animated? */ X RSMatrix trans, /* object space --> world space */ X itrans; /* worldspace --> object space */ X struct Trans *next, *prev; X} Trans; X Xextern void MatrixMult(), MatrixCopy(), MatrixInit(), MatrixInvert(), X TransCopy(), TransInit(), TransInvert(), X TransCompose(), X VecTransform(), PointTransform(), NormalTransform(); X Xextern Trans *TransCreate(); X Xextern RSMatrix *MatrixCreate(); X Xvoid RotationMatrix(), TranslationMatrix(), X ScaleMatrix(), ArbitraryMatrix(), CoordSysTransform(); Xextern Float RayTransform(); X X#endif /* TRANSFORM_H */ END_OF_FILE if test 1857 -ne `wc -c <'libray/libcommon/transform.h'`; then echo shar: \"'libray/libcommon/transform.h'\" unpacked with wrong size! fi # end of 'libray/libcommon/transform.h' fi if test -f 'libray/libcommon/vector.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libcommon/vector.h'\" else echo shar: Extracting \"'libray/libcommon/vector.h'\" \(2237 characters\) sed "s/^X//" >'libray/libcommon/vector.h' <<'END_OF_FILE' X/* X * vector.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: vector.h,v 4.0 91/07/17 14:33:11 kolb Exp Locker: kolb $ X * X * $Log: vector.h,v $ X * Revision 4.0 91/07/17 14:33:11 kolb X * Initial version. X * X */ X#ifndef VECTOR_H X#define VECTOR_H X/* X * Constants used in projecting onto planes X */ X#define XNORMAL (char)0 X#define YNORMAL (char)1 X#define ZNORMAL (char)2 X X/* X * Maximum length X */ X#define FAR_AWAY 1.0E+14 X Xtypedef struct { X Float u, v; /* 2D point */ X} Vec2d; X Xtypedef struct Vector { X Float x, y, z; /* 3D point */ X} Vector; X X/* X * Linked list of points X */ Xtypedef struct PointList { X Vector vec; /* Vector data */ X struct PointList *next; /* Next in list */ X} PointList; X X/* X * Project a point in 3-space to the plane whose normal is indicated by "i." X */ X#define VecProject(r, p, i) {switch(i) { \ X case XNORMAL: \ X r.u = (p).y; \ X r.v = (p).z; \ X break; \ X case YNORMAL: \ X r.u = (p).x; \ X r.v = (p).z; \ X break; \ X case ZNORMAL: \ X r.u = (p).x; \ X r.v = (p).y; \ X break; \ X } } X X#define dotp(a, b) (((a)->x*(b)->x)+((a)->y*(b)->y)+((a)->z*(b)->z)) X#define VecSub(a,b,r) (r)->x=(a).x-(b).x,(r)->y=(a).y-(b).y,(r)->z=(a).z-(b).z X#define VecAdd(a,b,r) (r)->x=(a).x+(b).x,(r)->y=(a).y+(b).y,(r)->z=(a).z+(b).z X#define VecScale(s,a,r) (r)->x=(s)*(a).x,(r)->y=(s)*(a).y,(r)->z=(s)*(a).z X#define VecComb(s1,v1,s2,v2,r) (r)->x = (s1)*(v1).x + (s2)*(v2).x, \ X (r)->y = (s1)*(v1).y + (s2)*(v2).y, \ X (r)->z = (s1)*(v1).z + (s2)*(v2).z X#define VecAddScaled(v1,s,v2,r) (r)->x = (v1).x + (s)*(v2).x, \ X (r)->y = (v1).y + (s)*(v2).y, \ X (r)->z = (v1).z + (s)*(v2).z X Xextern void VecCross(), VecCoordSys(), MakeBump(); Xextern Float VecNormCross(), VecNormalize(); Xextern int Refract(); X X#endif /* VECTOR_H */ END_OF_FILE if test 2237 -ne `wc -c <'libray/libcommon/vector.h'`; then echo shar: \"'libray/libcommon/vector.h'\" unpacked with wrong size! fi # end of 'libray/libcommon/vector.h' fi if test -f 'libray/libcommon/xform.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libcommon/xform.c'\" else echo shar: Extracting \"'libray/libcommon/xform.c'\" \(1895 characters\) sed "s/^X//" >'libray/libcommon/xform.c' <<'END_OF_FILE' X/* X * xform.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: xform.c,v 4.0.1.1 1991/10/04 15:51:53 cek Exp cek $ X * X * $Log: xform.c,v $ X * Revision 4.0.1.1 1991/10/04 15:51:53 cek X * patch1: Initial revision. X * X * Revision 4.0 1991/09/29 15:34:31 cek X * Initial version. X * X */ X#include "common.h" X#include "xform.h" X XTransMethods *iXformMethods; X X/* X * Create and return reference to an Xform structure. X * In this case, we return a NULL pointer, as the Xform X * structure does not hold any data. X */ XXform * XXformCreate() X{ X return (Xform *)NULL; X} X X/* X * Return a pointer to collection of methods for the X * Xform transformation. X */ XTransMethods * XXformMethods() X{ X if (iXformMethods == (TransMethods *)NULL) { X iXformMethods = (TransMethods *)Malloc(sizeof(TransMethods)); X iXformMethods->create = (TransCreateFunc *)XformCreate; X iXformMethods->propagate = XformPropagate; X } X return iXformMethods; X} X X/* X * Given an Xform structure and forward and inverse transformations, X * propagate the information in the Xform structure to the X * transformations. X * In this case, the information "in" the Xform structure is X * actually stored in the forward transformation; the Xform X * points to NULL. X */ Xvoid XXformPropagate(xform, trans, itrans) XXform *xform; XRSMatrix *trans, *itrans; X{ X /* X * The Xform methods change the forward trans X * directly, so it's already all set. X * Build the inverse... X */ X MatrixInvert(trans, itrans); X} END_OF_FILE if test 1895 -ne `wc -c <'libray/libcommon/xform.c'`; then echo shar: \"'libray/libcommon/xform.c'\" unpacked with wrong size! fi # end of 'libray/libcommon/xform.c' fi if test -f 'libray/libcommon/xform.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libcommon/xform.h'\" else echo shar: Extracting \"'libray/libcommon/xform.h'\" \(1873 characters\) sed "s/^X//" >'libray/libcommon/xform.h' <<'END_OF_FILE' X/* X * xform.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: xform.h,v 4.0.1.1 1991/10/04 15:51:33 cek Exp cek $ X * X * $Log: xform.h,v $ X * Revision 4.0.1.1 1991/10/04 15:51:33 cek X * patch1: Initial revision. X * X * Revision 4.0 1991/09/29 15:33:56 cek X * Initial version. X * X */ X#ifndef XFORM_H X#define XFORM_H X X#define TransXformCreate() TransCreate((TransRef)XformCreate(), XformMethods()) X X#define TransXformSetX0(t, v) TransAssoc(t, &t->trans.matrix[0][0], v) X#define TransXformSetY0(t, v) TransAssoc(t, &t->trans.matrix[0][1], v) X#define TransXformSetZ0(t, v) TransAssoc(t, &t->trans.matrix[0][2], v) X#define TransXformSetX1(t, v) TransAssoc(t, &t->trans.matrix[1][0], v) X#define TransXformSetY1(t, v) TransAssoc(t, &t->trans.matrix[1][1], v) X#define TransXformSetZ1(t, v) TransAssoc(t, &t->trans.matrix[1][2], v) X#define TransXformSetX2(t, v) TransAssoc(t, &t->trans.matrix[2][0], v) X#define TransXformSetY2(t, v) TransAssoc(t, &t->trans.matrix[2][1], v) X#define TransXformSetZ2(t, v) TransAssoc(t, &t->trans.matrix[2][2], v) X#define TransXformSetXt(t, v) TransAssoc(t, &t->trans.translate.x, v) X#define TransXformSetYt(t, v) TransAssoc(t, &t->trans.translate.y, v) X#define TransXformSetZt(t, v) TransAssoc(t, &t->trans.translate.z, v) X Xtypedef char Xform; /* Dummy; Xform has no private data. */ X Xextern Xform *XformCreate(); Xextern TransMethods *XformMethods(); Xextern void XformPropagate(); X X#endif /* XFORM_H */ END_OF_FILE if test 1873 -ne `wc -c <'libray/libcommon/xform.h'`; then echo shar: \"'libray/libcommon/xform.h'\" unpacked with wrong size! fi # end of 'libray/libcommon/xform.h' fi if test -f 'libray/liblight/jittered.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/liblight/jittered.c'\" else echo shar: Extracting \"'libray/liblight/jittered.c'\" \(1905 characters\) sed "s/^X//" >'libray/liblight/jittered.c' <<'END_OF_FILE' X/* X * jittered.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: jittered.c,v 4.0 91/07/17 14:34:43 kolb Exp Locker: kolb $ X * X * $Log: jittered.c,v $ X * Revision 4.0 91/07/17 14:34:43 kolb X * Initial version. X * X */ X#include "light.h" X#include "jittered.h" X Xstatic LightMethods *iJitteredMethods = NULL; X XJittered * XJitteredCreate(pos, e1, e2) XVector *pos, *e1, *e2; X{ X Jittered *j; X X j = (Jittered *)share_malloc(sizeof(Jittered)); X X j->pos = *pos; X j->e1 = *e1; X j->e2 = *e2; X X return j; X} X XLightMethods * XJitteredMethods() X{ X if (iJitteredMethods == (LightMethods *)NULL) { X iJitteredMethods = LightMethodsCreate(); X iJitteredMethods->intens = JitteredIntens; X iJitteredMethods->dir = JitteredDirection; X } X return iJitteredMethods; X} X Xint XJitteredIntens(jit, lcolor, cache, ray, dist, noshadow, color) XJittered *jit; XColor *lcolor, *color; XShadowCache *cache; XRay *ray; XFloat dist; Xint noshadow; X{ X return !Shadowed(color, lcolor, cache, ray, dist, noshadow); X} X Xvoid XJitteredDirection(lp, pos, dir, dist) XJittered *lp; XVector *pos, *dir; XFloat *dist; X{ X /* X * Choose a location with the area define by corner, e1 X * and e2 at which this sample will be taken. X */ X VecAddScaled(lp->pos, nrand(), lp->e1, &lp->curpos); X VecAddScaled(lp->curpos, nrand(), lp->e2, &lp->curpos); X VecSub(lp->curpos, *pos, dir); X *dist = VecNormalize(dir); X} X XJitteredMethodRegister(meth) XUserMethodType meth; X{ X if (iJitteredMethods) X iJitteredMethods->user = meth; X} END_OF_FILE if test 1905 -ne `wc -c <'libray/liblight/jittered.c'`; then echo shar: \"'libray/liblight/jittered.c'\" unpacked with wrong size! fi # end of 'libray/liblight/jittered.c' fi if test -f 'libray/liblight/light.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/liblight/light.c'\" else echo shar: Extracting \"'libray/liblight/light.c'\" \(1978 characters\) sed "s/^X//" >'libray/liblight/light.c' <<'END_OF_FILE' X/* X * light.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: light.c,v 4.0 91/07/17 14:35:01 kolb Exp Locker: kolb $ X * X * $Log: light.c,v $ X * Revision 4.0 91/07/17 14:35:01 kolb X * Initial version. X * X */ X#include "light.h" X XLight * XLightCreate(light, meth, color) XLightRef light; XLightMethods *meth; XColor *color; X{ X Light *ltmp; X X if (light == (LightRef)NULL || meth == (LightMethods *)NULL) X return (Light *)NULL; X X ltmp = (Light *)share_malloc(sizeof(Light)); X ltmp->light = light; X ltmp->methods = meth; X ltmp->color = *color; X ltmp->next = (Light *)NULL; X ltmp->cache = (ShadowCache *)NULL; X ltmp->shadow = TRUE; X return ltmp; X} X XLightMethods * XLightMethodsCreate() X{ X return (LightMethods *)share_calloc(1, sizeof(LightMethods)); X} X X/* X * Compute light color. Returns FALSE if in full shadow, TRUE otherwise. X * Computed light color is stored in 'color'. X */ Xint XLightIntens(lp, ray, dist, noshadow, color) XLight *lp; XRay *ray; XFloat dist; Xint noshadow; XColor *color; X{ X if (lp->methods->intens) X return (*lp->methods->intens)(lp->light, &lp->color, X lp->cache, ray, dist, noshadow || !lp->shadow, color); X RLerror(RL_ABORT, "Cannot compute light intensity!\n"); X return FALSE; X} X X/* X * Calculate ray and distance from position to light. X */ Xint XLightDirection(lp, objpos, lray, dist) XLight *lp; XVector *objpos, *lray; XFloat *dist; X{ X if (lp->methods->dir) { X (*lp->methods->dir)(lp->light, objpos, lray, dist); X return TRUE; X } else { X RLerror(RL_ABORT, "Cannot compute light direction!\n"); X return FALSE; X } X} END_OF_FILE if test 1978 -ne `wc -c <'libray/liblight/light.c'`; then echo shar: \"'libray/liblight/light.c'\" unpacked with wrong size! fi # end of 'libray/liblight/light.c' fi if test -f 'libray/liblight/light.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/liblight/light.h'\" else echo shar: Extracting \"'libray/liblight/light.h'\" \(2038 characters\) sed "s/^X//" >'libray/liblight/light.h' <<'END_OF_FILE' X/* X * light.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: light.h,v 4.0 91/07/17 14:35:10 kolb Exp Locker: kolb $ X * X * $Log: light.h,v $ X * Revision 4.0 91/07/17 14:35:10 kolb X * Initial version. X * X */ X#ifndef LIGHT_H X#define LIGHT_H X X#include "libobj/geom.h" X X#define SHADOW_NONE 001 X#define SHADOW_TRANSP 002 X#define SHADOW_CSG 004 X#define SHADOW_CACHE 010 X#define SHADOW_BLUR 020 X X#define NOSHADOWS(f) ((f) & SHADOW_NONE) X#define SHADOWTRANSP(f) ((f) & SHADOW_TRANSP) X#define SHADOWCSG(f) ((f) & SHADOW_CSG) X#define SHADOWCACHE(f) ((f) & SHADOW_CACHE) X#define SHADOWBLUR(f) ((f) & SHADOW_BLUR) X X#define SHADOW_EPSILON (4. * EPSILON) X Xtypedef char * LightRef; X Xtypedef struct { X struct Geom *obj; /* Pointer to cached object */ X RSMatrix trans; /* World-to-object transformation */ X char dotrans; /* TRUE if above trans is non-identity */ X} ShadowCache; X Xtypedef struct { X int (*intens)(); /* intensity method */ X void (*dir)(), /* direction method */ X (*user)(); /* user-defined method */ X} LightMethods; X Xtypedef struct Light { X Color color; /* Light source color & intensity */ X int shadow; /* Does light source cast shadows? */ X LightRef light; /* Pointer to light information */ X LightMethods *methods; /* Light source methods */ X ShadowCache *cache; /* Shadow cache, if any */ X struct Light *next; /* Next light in list */ X} Light; X Xextern LightMethods *LightMethodsCreate(); Xextern Light *LightCreate(); Xextern void LightAllocateCache(), LightAddToDefined(); Xextern int LightIntens(), LightDirection(); Xextern void ShadowSetOptions(), ShadowStats(); X X#endif /* LIGHT_H */ END_OF_FILE if test 2038 -ne `wc -c <'libray/liblight/light.h'`; then echo shar: \"'libray/liblight/light.h'\" unpacked with wrong size! fi # end of 'libray/liblight/light.h' fi if test -f 'libray/libsurf/atmosphere.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libsurf/atmosphere.c'\" else echo shar: Extracting \"'libray/libsurf/atmosphere.c'\" \(1801 characters\) sed "s/^X//" >'libray/libsurf/atmosphere.c' <<'END_OF_FILE' X/* X * atmosphere.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: atmosphere.c,v 4.0 91/07/17 14:40:02 kolb Exp Locker: kolb $ X * X * $Log: atmosphere.c,v $ X * Revision 4.0 91/07/17 14:40:02 kolb X * Initial version. X * X */ X#include "atmosphere.h" X XAtmosphere * XAtmosCreate(data, method) Xchar *data; Xvoid (*method)(); X{ X Atmosphere *ef; X X ef = (Atmosphere *)Malloc(sizeof(Atmosphere)); X ef->data = data; X ef->method = method; X ef->next = (Atmosphere *)0; X return ef; X} X XAtmosphere * XAtmosphereCopy(atmos) XAtmosphere *atmos; X{ X Atmosphere *res; X X if (atmos == (Atmosphere *)NULL) X return (Atmosphere *)NULL; X res = AtmosCreate(atmos->data, atmos->method); X res->next = AtmosphereCopy(atmos->next); X return res; X} X XMedium * XMediumPush(index, statten, media) XFloat index, statten; XMedium *media; X{ X Medium *new; X X new = (Medium *)Malloc(sizeof(Medium)); X new->index = index; X new->statten = statten; X new->next = media; X X return new; X} X Xvoid XAtmospherics(effects, ray, dist, pos, color) XAtmosphere *effects; XRay *ray; XFloat dist; XVector *pos; XColor *color; X{ X Atmosphere *etmp; X X for (etmp = effects; etmp; etmp = etmp->next) X (*etmp->method)(etmp->data, ray, pos, dist, color); X} X XFloat XExpAtten(dist, trans) XFloat dist, trans; X{ X Float atten; X X if (trans < EPSILON) X return 0.; X atten = LNHALF * dist / trans; X return (atten < -10. ? 0. : exp(atten)); X} END_OF_FILE if test 1801 -ne `wc -c <'libray/libsurf/atmosphere.c'`; then echo shar: \"'libray/libsurf/atmosphere.c'\" unpacked with wrong size! fi # end of 'libray/libsurf/atmosphere.c' fi if test -f 'libray/libsurf/surface.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libsurf/surface.h'\" else echo shar: Extracting \"'libray/libsurf/surface.h'\" \(1924 characters\) sed "s/^X//" >'libray/libsurf/surface.h' <<'END_OF_FILE' X/* X * surface.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: surface.h,v 4.0 91/07/17 14:41:02 kolb Exp Locker: kolb $ X * X * $Log: surface.h,v $ X * Revision 4.0 91/07/17 14:41:02 kolb X * Initial version. X * X */ X#ifndef SURFACE_H X#define SURFACE_H X X#define DEFAULT_INDEX 1.0 /* Default index of refraction */ X#define DEFAULT_PHONGPOW 15.0 /* Default specular highlight exp */ X X/* X * Surface definition. X */ Xtypedef struct Surface { X char *name; /* Name */ X struct Color amb, /* Ambient 'curve' */ X diff, /* Diffuse reflection 'curve' */ X spec, /* Specular reflection 'curve' */ X translu, /* Diffuse transmission 'curve' */ X body; /* Specular transmission 'curve' */ X Float srexp, /* Specular reflection exponent */ X stexp, /* Specular transmission exponent */ X statten, /* Specular transmission attenuation */ X index, /* Index of refraction */ X reflect, /* Specular reflectivity */ X transp, /* Specular transmittance */ X translucency; /* Diffuse transmittance */ X char noshadow; /* No shadowing? */ X struct Surface *next; /* Next surface in list (if any) */ X} Surface; X X/* X * Linked list of (linked list of) surfaces. X */ Xtypedef struct SurfList { X Surface *surf; X struct SurfList *next; X} SurfList; X Xextern Surface *SurfaceCreate(), X *GetShadingSurf(), /* application-provided */ X *SurfaceCopy(); X Xextern SurfList *SurfPop(), *SurfPush(); X Xextern void SurfaceBlend(), ColorBlend(); X Xextern int ComputeSurfProps(); X X#endif /* SURFACE_H */ END_OF_FILE if test 1924 -ne `wc -c <'libray/libsurf/surface.h'`; then echo shar: \"'libray/libsurf/surface.h'\" unpacked with wrong size! fi # end of 'libray/libsurf/surface.h' fi if test -f 'libray/libtext/fbm.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libtext/fbm.c'\" else echo shar: Extracting \"'libray/libtext/fbm.c'\" \(1951 characters\) sed "s/^X//" >'libray/libtext/fbm.c' <<'END_OF_FILE' X/* X * fbm.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: fbm.c,v 4.0 91/07/17 14:42:06 kolb Exp Locker: kolb $ X * X * $Log: fbm.c,v $ X * Revision 4.0 91/07/17 14:42:06 kolb X * Initial version. X * X */ X#include "texture.h" X#include "fbm.h" X XFBm * XFBmCreate(offset, scale, h, lambda, octaves, thresh, mapname) XFloat h, lambda, scale, offset, thresh; Xint octaves; Xchar *mapname; X{ X FBm *fbm; X X fbm = (FBm *)Malloc(sizeof(FBm)); X X fbm->beta = 1. + 2*h; X fbm->omega = pow(lambda, -0.5*fbm->beta); X fbm->lambda = lambda; X fbm->scale = scale; X fbm->offset = offset; X fbm->thresh = thresh; X fbm->octaves = octaves; X if (mapname != (char *)NULL) X fbm->colormap = ColormapRead(mapname); X else X fbm->colormap = (Color *)NULL; X return fbm; X} X Xvoid XFBmApply(fbm, prim, ray, pos, norm, gnorm, surf) XFBm *fbm; XGeom *prim; XRay *ray; XVector *pos, *norm, *gnorm; XSurface *surf; X{ X Float val; X int index; X X val = fBm(pos, fbm->omega, fbm->lambda, fbm->octaves); X if (val < fbm->thresh) X val = fbm->offset; X else X val = fbm->offset + fbm->scale*(val - fbm->thresh); X if (fbm->colormap) { X index = 255. * val; X if (index > 255) index = 255; X if (index < 0) index = 0; X surf->diff.r *= fbm->colormap[index].r; X surf->diff.g *= fbm->colormap[index].g; X surf->diff.b *= fbm->colormap[index].b; X surf->amb.r *= fbm->colormap[index].r; X surf->amb.g *= fbm->colormap[index].g; X surf->amb.b *= fbm->colormap[index].b; X } else { X ColorScale(val, surf->diff, &surf->diff); X ColorScale(val, surf->amb, &surf->amb); X } X} END_OF_FILE if test 1951 -ne `wc -c <'libray/libtext/fbm.c'`; then echo shar: \"'libray/libtext/fbm.c'\" unpacked with wrong size! fi # end of 'libray/libtext/fbm.c' fi if test -f 'libray/libtext/texture.h' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libtext/texture.h'\" else echo shar: Extracting \"'libray/libtext/texture.h'\" \(2381 characters\) sed "s/^X//" >'libray/libtext/texture.h' <<'END_OF_FILE' X/* X * texture.h X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: texture.h,v 4.0 91/07/17 14:44:19 kolb Exp Locker: kolb $ X * X * $Log: texture.h,v $ X * Revision 4.0 91/07/17 14:44:19 kolb X * Initial version. X * X */ X#ifndef TEXTURE_H X#define TEXTURE_H X X#include "libobj/geom.h" X#include "libsurf/surface.h" X#include "mapping.h" X X/* X * Surface properties X */ X#define COLOR 0 /* AMBIENT, DIFFUSE, SPECULAR and BODY */ X#define AMBIENT 1 X#define DIFFUSE 2 X#define SPECULAR 3 X#define BODY 4 X#define REFLECT 5 X#define TRANSP 6 X#define SPECPOW 7 X#define BUMP 8 X#define INDEX 9 X X#define TextPointToModel(p) PointTransform(p, &model2text.itrans) X#define TextPointToPrim(p) PointTransform(p, &prim2text.itrans) X#define TextPointToWorld(p) PointTransform(p, &world2text.itrans) X#define TextRayToModel(p) RayTransform(r, &model2text.itrans) X#define TextRayToPrim(r) RayTransform(r, &prim2text.itrans) X#define TextRayToWorld(r) RayTransform(r, &world2text.itrans) X#define TextNormToModel(n) NormalTransform(n, &model2text.trans) X#define TextNormToPrim(n) NormalTransform(n, &prim2text.trans) X#define TextNormToWorld(n) NormalTransform(n, &world2text.trans) X X#define ModelPointToText(p) PointTransform(p, &model2text.trans) X#define ModelNormToText(n) NormalTransform(n, &model2text.itrans) X#define ModelRayToText(r) RayTransform(r, &model2text.trans) X Xtypedef char *TextRef; X X/* X * Texture structure X */ Xtypedef struct Texture { X TextRef data; /* Texturing info */ X void (*method)(); /* method */ X Trans *trans; /* transformation info */ X short animtrans; /* is the transformation animated? */ X struct Texture *next; /* next in list */ X} Texture; X Xextern Texture *TextCreate(), *TextAppend(); Xextern void DNoise3(), VfBm(), TextApply(), MakeBump(), Wrinkled(); Xextern Float Noise3(), Noise2(), Chaos(), Marble(), fBm(); Xextern int TileValue(); XColor *ColormapRead(); X Xextern Trans model2text, prim2text, world2text; X X#endif TEXTURE_H END_OF_FILE if test 2381 -ne `wc -c <'libray/libtext/texture.h'`; then echo shar: \"'libray/libtext/texture.h'\" unpacked with wrong size! fi # end of 'libray/libtext/texture.h' fi if test -f 'libray/libtext/wood.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libray/libtext/wood.c'\" else echo shar: Extracting \"'libray/libtext/wood.c'\" \(1805 characters\) sed "s/^X//" >'libray/libtext/wood.c' <<'END_OF_FILE' X/* X * wood.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb, Robert F. Skinner X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: wood.c,v 4.0 91/07/17 14:44:35 kolb Exp Locker: kolb $ X * X * $Log: wood.c,v $ X * Revision 4.0 91/07/17 14:44:35 kolb X * Initial version. X * X */ X#include "texture.h" X#include "wood.h" X XWood * XWoodCreate() X{ X return (Wood *)NULL; /* No data associated with wood texture */ X} X X/*ARGSUSED*/ Xvoid XWoodApply(wood, prim, ray, pos, norm, gnorm, surf) XWood *wood; XGeom *prim; XRay *ray; XVector *pos, *norm, *gnorm; XSurface *surf; X{ X Float red, grn, blu; X Float chaos, brownLayer, greenLayer; X Float perturb, brownPerturb, greenPerturb, grnPerturb; X Float t; X X chaos = Chaos(pos, 7); X t = sin(sin(8.*chaos + 7*pos->x +3.*pos->y)); X X greenLayer = brownLayer = fabs(t); X X perturb = sin(40.*chaos + 50.*pos->z); X perturb = fabs(perturb); X X brownPerturb = .6*perturb + 0.3; X greenPerturb = .2*perturb + 0.8; X grnPerturb = .15*perturb + 0.85; X grn = 0.5 * pow(fabs(brownLayer), 0.3); X brownLayer = pow(0.5 * (brownLayer+1.0), 0.6) * brownPerturb; X greenLayer = pow(0.5 * (greenLayer+1.0), 0.6) * greenPerturb; X X red = (0.5*brownLayer + 0.35*greenLayer)*2.*grn; X blu = (0.25*brownLayer + 0.35*greenLayer)*2.0*grn; X grn *= max(brownLayer, greenLayer) * grnPerturb; X X surf->diff.r *= red; X surf->diff.g *= grn; X surf->diff.b *= blu; X surf->amb.r *= red; X surf->amb.g *= grn; X surf->amb.b *= blu; X} END_OF_FILE if test 1805 -ne `wc -c <'libray/libtext/wood.c'`; then echo shar: \"'libray/libtext/wood.c'\" unpacked with wrong size! fi # end of 'libray/libtext/wood.c' fi if test -f 'libshade/objdef.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'libshade/objdef.c'\" else echo shar: Extracting \"'libshade/objdef.c'\" \(2418 characters\) sed "s/^X//" >'libshade/objdef.c' <<'END_OF_FILE' X/* X * objdef.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: objdef.c,v 4.0 91/07/17 14:46:38 kolb Exp Locker: kolb $ X * X * $Log: objdef.c,v $ X * Revision 4.0 91/07/17 14:46:38 kolb X * Initial version. X * X */ X X#include "rayshade.h" X#include "options.h" X#include "stats.h" X Xstatic Geom *Objects = NULL; /* named objects */ XGeom *World; /* top-level object */ X X X/* X * Return pointer to named object, NULL if no such object has been defined. X */ XGeom * XGeomGetNamed(name) Xchar *name; X{ X Geom *otmp; X for (otmp = Objects; otmp; otmp = otmp->next) X if (strcmp(name, otmp->name) == 0) X return otmp; X return (Geom *)NULL; X} X X/* X * Add object to list of defined objects. At this point, the object has X * been converted to the correct type, and obj->next is either NULL or X * garbage. X */ Xvoid XGeomAddToDefined(obj) XGeom *obj; X{ X obj->next = Objects; X Objects = obj; X if (Options.verbose) X AggregatePrintInfo(obj, Stats.fstats); X else X AggregatePrintInfo(obj, (FILE *)NULL); X} X X/* X * Return a copy of the named object. X */ XGeom * XGeomCopyNamed(name) Xchar *name; X{ X Geom *child; X X child = GeomGetNamed(name); X if (child == (Geom *)NULL) X RLerror(RL_PANIC, "There is no object named \"%s\".", name); X child = GeomCopy(child); X return child; X} X Xvoid XWorldSetup() X{ X extern GeomList *Defstack; X X /* X * Define World object, if not done previously. X */ X if (World == (Geom *)NULL) { X World = Defstack->obj; /* World is topmost object on stack */ X if (Defstack->next) X RLerror(RL_ABORT, "Geom def stack is screwey.\n"); X World->prims = AggregateConvert(World, World->next); X } X X GeomComputeBounds(World); X X /* X * Complain if there are no primitives to be rendered. X */ X if (World->prims == 0) { X RLerror(RL_PANIC, "Nothing to be rendered.\n"); X } X} X X/* X * Main ray-spwaning routine required by libray X */ Xint XTraceRay(ray, hitlist, mindist, maxdist) XRay *ray; XHitList *hitlist; XFloat mindist, *maxdist; X{ X return intersect(World, ray, hitlist, mindist, maxdist); X} END_OF_FILE if test 2418 -ne `wc -c <'libshade/objdef.c'`; then echo shar: \"'libshade/objdef.c'\" unpacked with wrong size! fi # end of 'libshade/objdef.c' fi if test -f 'rayshade/main.c' -a "${1}" != "-c" ; then echo shar: Will not clobber existing file \"'rayshade/main.c'\" else echo shar: Extracting \"'rayshade/main.c'\" \(2468 characters\) sed "s/^X//" >'rayshade/main.c' <<'END_OF_FILE' X/* X * main.c X * X * Copyright (C) 1989, 1991, Craig E. Kolb X * All rights reserved. X * X * This software may be freely copied, modified, and redistributed X * provided that this copyright notice is preserved on all copies. X * X * You may not distribute this software, in whole or in part, as part of X * any commercial product without the express consent of the authors. X * X * There is no warranty or other guarantee of fitness of this software X * for any purpose. It is provided solely "as is". X * X * $Id: main.c,v 4.0 91/07/17 14:50:39 kolb Exp Locker: kolb $ X * X * $Log: main.c,v $ X * Revision 4.0 91/07/17 14:50:39 kolb X * Initial version. X * X */ X Xchar rcsid[] = "$Id: main.c,v 4.0 91/07/17 14:50:39 kolb Exp Locker: kolb $"; X X#include "rayshade.h" X#include "options.h" X#include "stats.h" X#include "viewing.h" X#include "picture.h" X Xint X#ifdef LINDA Xrayshade_main(argc, argv) X#else Xmain(argc, argv) X#endif Xint argc; Xchar **argv; X{ X Float utime, stime, lasttime; X int i; X extern Geom *World; X X#ifdef LINDA X Options.workernum = 0; /* we're the supervisor */ X#endif X X RSInitialize(argc, argv); X X X /* X * Start the first frame. X */ X RSStartFrame(Options.startframe); X /* X * Print more information than we'll ever need to know... X */ X if (Options.verbose) { X /* World object info. */ X AggregatePrintInfo(World, Stats.fstats); X /* Print info about rendering options and the like. */ X RSOptionsList(); X } X /* X * Start new picture. X */ X PictureStart(argv); X /* X * Print preprocessing time. X */ X RSGetCpuTime(&utime, &stime); X fprintf(Stats.fstats,"Preprocessing time:\t"); X fprintf(Stats.fstats,"%2.2fu %2.2fs\n", utime, stime); X fprintf(Stats.fstats,"Starting trace.\n"); X (void)fflush(Stats.fstats); X lasttime = utime+stime; X /* X * Render the first frame X */ X raytrace(argc, argv); X /* X * Render the remaining frames. X */ X for (i = Options.startframe +1; i <= Options.endframe ; i++) { X PictureFrameEnd(); /* End the previous frame */ X RSGetCpuTime(&utime, &stime); X fprintf(Stats.fstats, "Total CPU time for frame %d: %2.2f \n", X i - 1, utime+stime - lasttime); X PrintMemoryStats(Stats.fstats); X (void)fflush(Stats.fstats); X lasttime = utime+stime; X RSStartFrame(i); X if (Options.verbose) { X AggregatePrintInfo(World, Stats.fstats); X (void)fflush(Stats.fstats); X } X PictureStart(argv); X raytrace(argc, argv); X } X /* X * Close the image file. X */ X PictureFrameEnd(); /* End the last frame */ X PictureEnd(); X StatsPrint(); X return 0; X} END_OF_FILE if test 2468 -ne `wc -c <'rayshade/main.c'`; then echo shar: \"'rayshade/main.c'\" unpacked with wrong size! fi # end of 'rayshade/main.c' fi echo shar: End of archive 5 \(of 19\). cp /dev/null ark5isdone MISSING="" for I in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ; do if test ! -f ark${I}isdone ; then MISSING="${MISSING} ${I}" fi done if test "${MISSING}" = "" ; then echo You have unpacked all 19 archives. rm -f ark[1-9]isdone ark[1-9][0-9]isdone else echo You still need to unpack the following archives: echo " " ${MISSING} fi ## End of shell archive. exit 0