/* -*- Mode: C; tab-width: 4 -*- */ /* morph3d --- Shows 3D morphing objects */ #if !defined( lint ) && !defined( SABER ) static const char sccsid[] = "@(#)morph3d.c 5.00 2000/11/01 xlockmore"; #endif #undef DEBUG_CULL_FACE /*- * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation. * * This file is provided AS IS with no warranties of any kind. The author * shall have no liability with respect to the infringement of copyrights, * trade secrets or any patents by this file or any part thereof. In no * event will the author be liable for any lost revenue or profits or * other special, indirect and consequential damages. * * The original code for this mode was written by Marcelo Fernandes Vianna * (me...) and was inspired on a WindowsNT(R)'s screen saver (Flower Box). * It was written from scratch and it was not based on any other source code. * * Porting it to xlock (the final objective of this code since the moment I * decided to create it) was possible by comparing the original Mesa's gear * demo with it's ported version to xlock, so thanks for Danny Sung (look at * gear.c) for his indirect help. * * Thanks goes also to Brian Paul for making it possible and inexpensive * to use OpenGL at home. * * If you are interested in the original version of this program (not a xlock * mode, please refer to the Mesa package (ftp iris.ssec.wisc.edu on /pub/Mesa) * * Since I'm not a native English speaker, my apologies for any grammatical * mistakes. * * My e-mail address is * m-vianna@usa.net * * Marcelo F. Vianna (Feb-13-1997) * * Revision History: * 27-Jul-97: Speed ups by Marcelo F. Vianna. * 08-May-97: Speed ups by Marcelo F. Vianna. * */ /*- * PURIFY 3.0a on SunOS4 reports an unitialized memory read on each of * the glCallList() functions below when using MesaGL 2.1. This has * been fixed in MesaGL 2.2 and later releases. */ /*- * due to a Bug/feature in VMS X11/Intrinsic.h has to be placed before xlock. * otherwise caddr_t is not defined correctly */ #include #ifdef STANDALONE #define PROGCLASS "Morph3d" #define HACK_INIT init_morph3d #define HACK_DRAW draw_morph3d #define morph3d_opts xlockmore_opts #define DEFAULTS "*delay: 1000 \n" \ "*count: 0 \n" #include "xlockmore.h" /* from the xscreensaver distribution */ #else /* !STANDALONE */ #include "xlock.h" /* from the xlockmore distribution */ #include "vis.h" #endif /* !STANDALONE */ #ifdef MODE_moebius ModeSpecOpt morph3d_opts = {0, NULL, 0, NULL, NULL}; #ifdef USE_MODULES ModStruct morph3d_description = {"morph3d", "init_morph3d", "draw_morph3d", "release_morph3d", "draw_morph3d", "change_morph3d", NULL, &morph3d_opts, 1000, 0, 1, 1, 4, 1.0, "", "Shows GL morphing polyhedra", 0, NULL}; #endif #define Scale4Window 0.3 #define Scale4Iconic 1.0 #define VectMul(X1,Y1,Z1,X2,Y2,Z2) (Y1)*(Z2)-(Z1)*(Y2),(Z1)*(X2)-(X1)*(Z2),(X1)*(Y2)-(Y1)*(X2) #define sqr(A) ((A)*(A)) /* Increasing this values produces better image quality, the price is speed. */ #define tetradivisions 23 #define cubedivisions 20 #define octadivisions 21 #define dodecadivisions 10 #define icodivisions 15 #define tetraangle 109.47122063449069174 #define cubeangle 90.000000000000000000 #define octaangle 109.47122063449069174 #define dodecaangle 63.434948822922009981 #define icoangle 41.810314895778596167 #ifndef Pi #define Pi M_PI #endif #define SQRT2 1.4142135623730951455 #define SQRT3 1.7320508075688771932 #define SQRT5 2.2360679774997898051 #define SQRT6 2.4494897427831778813 #define SQRT15 3.8729833462074170214 #define cossec36_2 0.8506508083520399322 #define cos72 0.3090169943749474241 #define sin72 0.9510565162951535721 #define cos36 0.8090169943749474241 #define sin36 0.5877852522924731292 /*************************************************************************/ typedef struct { GLint WindH, WindW; GLfloat step; GLfloat seno; int object; int edgedivisions; int VisibleSpikes; void (*draw_object) (ModeInfo * mi); float Magnitude; float *MaterialColor[20]; GLXContext *glx_context; } morph3dstruct; static float front_shininess[] = {60.0}; static float front_specular[] = {0.7, 0.7, 0.7, 1.0}; static float ambient[] = {0.0, 0.0, 0.0, 1.0}; static float diffuse[] = {1.0, 1.0, 1.0, 1.0}; static float position0[] = {1.0, 1.0, 1.0, 0.0}; static float position1[] = {-1.0, -1.0, 1.0, 0.0}; static float lmodel_ambient[] = {0.5, 0.5, 0.5, 1.0}; static float lmodel_twoside[] = {GL_TRUE}; static float MaterialRed[] = {0.7, 0.0, 0.0, 1.0}; static float MaterialGreen[] = {0.1, 0.5, 0.2, 1.0}; static float MaterialBlue[] = {0.0, 0.0, 0.7, 1.0}; static float MaterialCyan[] = {0.2, 0.5, 0.7, 1.0}; static float MaterialYellow[] = {0.7, 0.7, 0.0, 1.0}; static float MaterialMagenta[] = {0.6, 0.2, 0.5, 1.0}; static float MaterialWhite[] = {0.7, 0.7, 0.7, 1.0}; static float MaterialGray[] = {0.5, 0.5, 0.5, 1.0}; static morph3dstruct *morph3d = NULL; #define TRIANGLE(Edge, Amp, Divisions, Z, VS) \ { \ GLfloat Xf,Yf,Xa,Yb,Xf2,Yf2,Yf_2,Yb2,Yb_2; \ GLfloat Factor=0.0,Factor1,Factor2; \ GLfloat VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ; \ GLfloat Ax,Ay; \ int Ri,Ti; \ GLfloat Vr=(Edge)*SQRT3/3; \ GLfloat AmpVr2=(Amp)/sqr(Vr); \ GLfloat Zf=(Edge)*(Z); \ \ Ax=(Edge)*(+0.5/(Divisions)), Ay=(Edge)*(-SQRT3/(2*Divisions)); \ \ Yf=Vr+Ay; Yb=Yf+0.001; \ for (Ri=1; Ri<=(Divisions); Ri++) { \ glBegin(GL_TRIANGLE_STRIP); \ Xf=(float)Ri*Ax; Xa=Xf+0.001; \ Yf2=sqr(Yf); Yf_2=sqr(Yf-Ay); \ Yb2=sqr(Yb); Yb_2=sqr(Yb-Ay); \ for (Ti=0; TiMaterialColor[0]); if ((list = glGenLists(1)) == 0) return; glNewList(list, GL_COMPILE_AND_EXECUTE); if (glGetError() != GL_NO_ERROR) { glDeleteLists(list, 1); return; } TRIANGLE(2, mp->seno, mp->edgedivisions, 0.5 / SQRT6, mp->VisibleSpikes); glEndList(); glPushMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-tetraangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + tetraangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + tetraangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]); glCallList(list); glDeleteLists(list, 1); } static void draw_cube(ModeInfo * mi) { GLuint list; morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]); if ((list = glGenLists(1)) == 0) return; glNewList(list, GL_COMPILE_AND_EXECUTE); if (glGetError() != GL_NO_ERROR) { glDeleteLists(list, 1); return; } SQUARE(2, mp->seno, mp->edgedivisions, 0.5, mp->VisibleSpikes) glEndList(); glRotatef(cubeangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]); glCallList(list); glRotatef(cubeangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]); glCallList(list); glRotatef(cubeangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]); glCallList(list); glRotatef(cubeangle, 0, 1, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]); glCallList(list); glRotatef(2 * cubeangle, 0, 1, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]); glCallList(list); glDeleteLists(list, 1); } static void draw_octa(ModeInfo * mi) { GLuint list; morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]); if ((list = glGenLists(1)) == 0) return; glNewList(list, GL_COMPILE_AND_EXECUTE); if (glGetError() != GL_NO_ERROR) { glDeleteLists(list, 1); return; } TRIANGLE(2, mp->seno, mp->edgedivisions, 1 / SQRT6, mp->VisibleSpikes); glEndList(); glPushMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-180 + octaangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-octaangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-octaangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]); glCallList(list); glPopMatrix(); glRotatef(180, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-180 + octaangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-octaangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[6]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-octaangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[7]); glCallList(list); glDeleteLists(list, 1); } static void draw_dodeca(ModeInfo * mi) { GLuint list; morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; #define TAU ((SQRT5+1)/2) glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]); if ((list = glGenLists(1)) == 0) return; glNewList(list, GL_COMPILE_AND_EXECUTE); if (glGetError() != GL_NO_ERROR) { glDeleteLists(list, 1); return; } PENTAGON(1, mp->seno, mp->edgedivisions, sqr(TAU) * sqrt((TAU + 2) / 5) / 2, mp->VisibleSpikes); glEndList(); glPushMatrix(); glRotatef(180, 0, 0, 1); glPushMatrix(); glRotatef(-dodecaangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(-dodecaangle, cos72, sin72, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(-dodecaangle, cos72, -sin72, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(dodecaangle, cos36, -sin36, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]); glCallList(list); glPopMatrix(); glRotatef(dodecaangle, cos36, sin36, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]); glCallList(list); glPopMatrix(); glRotatef(180, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[6]); glCallList(list); glRotatef(180, 0, 0, 1); glPushMatrix(); glRotatef(-dodecaangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[7]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(-dodecaangle, cos72, sin72, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[8]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(-dodecaangle, cos72, -sin72, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[9]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(dodecaangle, cos36, -sin36, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[10]); glCallList(list); glPopMatrix(); glRotatef(dodecaangle, cos36, sin36, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[11]); glCallList(list); glDeleteLists(list, 1); } static void draw_icosa(ModeInfo * mi) { GLuint list; morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]); if ((list = glGenLists(1)) == 0) return; glNewList(list, GL_COMPILE_AND_EXECUTE); if (glGetError() != GL_NO_ERROR) { glDeleteLists(list, 1); return; } TRIANGLE(1.5, mp->seno, mp->edgedivisions, (3 * SQRT3 + SQRT15) / 12, mp->VisibleSpikes); glEndList(); glPushMatrix(); glPushMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-icoangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-icoangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[6]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[7]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[8]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-icoangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[9]); glCallList(list); glPopMatrix(); glRotatef(180, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[10]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-icoangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[11]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[12]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[13]); glCallList(list); glPopMatrix(); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[14]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[15]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-icoangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[16]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[17]); glCallList(list); glPushMatrix(); glRotatef(180, 0, 1, 0); glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[18]); glCallList(list); glPopMatrix(); glRotatef(180, 0, 0, 1); glRotatef(-icoangle, 1, 0, 0); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[19]); glCallList(list); glDeleteLists(list, 1); } static void reshape(ModeInfo * mi, int width, int height) { morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; glViewport(0, 0, mp->WindW = (GLint) width, mp->WindH = (GLint) height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 15.0); glMatrixMode(GL_MODELVIEW); } static void pinit(ModeInfo * mi) { morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; glClearDepth(1.0); glClearColor(0.0, 0.0, 0.0, 1.0); glColor3f(1.0, 1.0, 1.0); glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); glLightfv(GL_LIGHT0, GL_POSITION, position0); glLightfv(GL_LIGHT1, GL_AMBIENT, ambient); glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse); glLightfv(GL_LIGHT1, GL_POSITION, position1); glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_LIGHT1); glEnable(GL_DEPTH_TEST); glEnable(GL_NORMALIZE); glShadeModel(GL_SMOOTH); glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, front_shininess); glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_specular); switch (mp->object) { case 2: mp->draw_object = draw_cube; mp->MaterialColor[0] = MaterialRed; mp->MaterialColor[1] = MaterialGreen; mp->MaterialColor[2] = MaterialCyan; mp->MaterialColor[3] = MaterialMagenta; mp->MaterialColor[4] = MaterialYellow; mp->MaterialColor[5] = MaterialBlue; mp->edgedivisions = cubedivisions; mp->Magnitude = 2.0; break; case 3: mp->draw_object = draw_octa; mp->MaterialColor[0] = MaterialRed; mp->MaterialColor[1] = MaterialGreen; mp->MaterialColor[2] = MaterialBlue; mp->MaterialColor[3] = MaterialWhite; mp->MaterialColor[4] = MaterialCyan; mp->MaterialColor[5] = MaterialMagenta; mp->MaterialColor[6] = MaterialGray; mp->MaterialColor[7] = MaterialYellow; mp->edgedivisions = octadivisions; mp->Magnitude = 2.5; break; case 4: mp->draw_object = draw_dodeca; mp->MaterialColor[0] = MaterialRed; mp->MaterialColor[1] = MaterialGreen; mp->MaterialColor[2] = MaterialCyan; mp->MaterialColor[3] = MaterialBlue; mp->MaterialColor[4] = MaterialMagenta; mp->MaterialColor[5] = MaterialYellow; mp->MaterialColor[6] = MaterialGreen; mp->MaterialColor[7] = MaterialCyan; mp->MaterialColor[8] = MaterialRed; mp->MaterialColor[9] = MaterialMagenta; mp->MaterialColor[10] = MaterialBlue; mp->MaterialColor[11] = MaterialYellow; mp->edgedivisions = dodecadivisions; mp->Magnitude = 2.0; break; case 5: mp->draw_object = draw_icosa; mp->MaterialColor[0] = MaterialRed; mp->MaterialColor[1] = MaterialGreen; mp->MaterialColor[2] = MaterialBlue; mp->MaterialColor[3] = MaterialCyan; mp->MaterialColor[4] = MaterialYellow; mp->MaterialColor[5] = MaterialMagenta; mp->MaterialColor[6] = MaterialRed; mp->MaterialColor[7] = MaterialGreen; mp->MaterialColor[8] = MaterialBlue; mp->MaterialColor[9] = MaterialWhite; mp->MaterialColor[10] = MaterialCyan; mp->MaterialColor[11] = MaterialYellow; mp->MaterialColor[12] = MaterialMagenta; mp->MaterialColor[13] = MaterialRed; mp->MaterialColor[14] = MaterialGreen; mp->MaterialColor[15] = MaterialBlue; mp->MaterialColor[16] = MaterialCyan; mp->MaterialColor[17] = MaterialYellow; mp->MaterialColor[18] = MaterialMagenta; mp->MaterialColor[19] = MaterialGray; mp->edgedivisions = icodivisions; mp->Magnitude = 2.5; break; default: mp->draw_object = draw_tetra; mp->MaterialColor[0] = MaterialRed; mp->MaterialColor[1] = MaterialGreen; mp->MaterialColor[2] = MaterialBlue; mp->MaterialColor[3] = MaterialWhite; mp->edgedivisions = tetradivisions; mp->Magnitude = 2.5; break; } if (MI_IS_MONO(mi)) { int loop; for (loop = 0; loop < 20; loop++) mp->MaterialColor[loop] = MaterialGray; } } void init_morph3d(ModeInfo * mi) { morph3dstruct *mp; if (morph3d == NULL) { if ((morph3d = (morph3dstruct *) calloc(MI_NUM_SCREENS(mi), sizeof (morph3dstruct))) == NULL) return; } mp = &morph3d[MI_SCREEN(mi)]; mp->step = NRAND(90); mp->VisibleSpikes = 1; if ((mp->glx_context = init_GL(mi)) != NULL) { reshape(mi, MI_WIDTH(mi), MI_HEIGHT(mi)); glDrawBuffer(GL_BACK); mp->object = MI_COUNT(mi); if (mp->object <= 0 || mp->object > 5) mp->object = NRAND(5) + 1; pinit(mi); } else { MI_CLEARWINDOW(mi); } } void draw_morph3d(ModeInfo * mi) { Display *display = MI_DISPLAY(mi); Window window = MI_WINDOW(mi); morph3dstruct *mp; if (morph3d == NULL) return; mp = &morph3d[MI_SCREEN(mi)]; MI_IS_DRAWN(mi) = True; if (!mp->glx_context) return; glXMakeCurrent(display, window, *(mp->glx_context)); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glTranslatef(0.0, 0.0, -10.0); if (!MI_IS_ICONIC(mi)) { glScalef(Scale4Window * mp->WindH / mp->WindW, Scale4Window, Scale4Window); glTranslatef(2.5 * mp->WindW / mp->WindH * sin(mp->step * 1.11), 2.5 * cos(mp->step * 1.25 * 1.11), 0); } else { glScalef(Scale4Iconic * mp->WindH / mp->WindW, Scale4Iconic, Scale4Iconic); } glRotatef(mp->step * 100, 1, 0, 0); glRotatef(mp->step * 95, 0, 1, 0); glRotatef(mp->step * 90, 0, 0, 1); mp->seno = (sin(mp->step) + 1.0 / 3.0) * (4.0 / 5.0) * mp->Magnitude; if (mp->VisibleSpikes) { #ifdef DEBUG_CULL_FACE int loop; for (loop = 0; loop < 20; loop++) mp->MaterialColor[loop] = MaterialGray; #endif glDisable(GL_CULL_FACE); } else { #ifdef DEBUG_CULL_FACE int loop; for (loop = 0; loop < 20; loop++) mp->MaterialColor[loop] = MaterialWhite; #endif glEnable(GL_CULL_FACE); } mp->draw_object(mi); glPopMatrix(); glFlush(); glXSwapBuffers(display, window); mp->step += 0.05; } void change_morph3d(ModeInfo * mi) { morph3dstruct *mp = &morph3d[MI_SCREEN(mi)]; if (!mp->glx_context) return; mp->object = (mp->object) % 5 + 1; pinit(mi); } void release_morph3d(ModeInfo * mi) { if (morph3d != NULL) { (void) free((void *) morph3d); morph3d = NULL; } FreeAllGL(mi); } #endif