1 /* xscreensaver, Copyright (c) 2002-2012 Jamie Zawinski <jwz@jwz.org>
3 * Permission to use, copy, modify, distribute, and sell this software and its
4 * documentation for any purpose is hereby granted without fee, provided that
5 * the above copyright notice appear in all copies and that both that
6 * copyright notice and this permission notice appear in supporting
7 * documentation. No representations are made about the suitability of this
8 * software for any purpose. It is provided "as is" without express or
11 * Algorithm by Paul Bourke <pbourke@swin.edu.au>
12 * http://astronomy.swin.edu.au/~pbourke/geometry/sphericalh/
13 * Screensaver veneer and parameter selection by jwz.
17 * These closed objects are commonly called spherical harmonics,
18 * although they are only remotely related to the mathematical
19 * definition found in the solution to certain wave functions, most
20 * notable the eigenfunctions of angular momentum operators.
22 * The formula is quite simple: the form used here is based upon
23 * spherical (polar) coordinates (radius, theta, phi).
25 * r = sin(m0 phi) ^ m1 +
27 * sin(m4 theta) ^ m5 +
30 * Where phi ranges from 0 to pi (lines of latitude), and theta ranges
31 * from 0 to 2 pi (lines of longitude), and r is the radius. The
32 * parameters m0, m1, m2, m3, m4, m5, m6, and m7 are all integers
33 * greater than or equal to 0.
35 * As the degree increases, the objects become increasingly "pointed"
36 * and a large number of polygons are required to represent the surface
41 * The eight parameters live in the `cc->m' array.
42 * Each time we permute the image, we alter *one* of those eight parameters.
43 * Each time we alter a parameter, we move it in the same direction (either
44 * toward larger or smaller values) in the range [0, 3].
46 * By altering only one parameter at a time, and only by small amounts,
47 * we tend to produce successive objects that are pretty similar to each
48 * other, so you can see a progression.
50 * It'd be nice if they were even closer together, so that it looked more
51 * like a morph, but, well, that's not how it works.
53 * There tends to be a dark stripe in the colormaps. I don't know why.
54 * Perhaps utils/colors.c is at fault?
56 * Note that this equation sometimes generates faces that are inside out:
57 * -parameters 01210111
58 * To make this work, we need to render back-faces with two-sided lighting:
59 * figuring out how to correct the winding and normals on those inside out
60 * surfaces would be too hard.
63 #define DEFAULTS "*delay: 30000 \n" \
64 "*showFPS: False \n" \
65 "*wireframe: False \n" \
66 "*labelfont: -*-helvetica-medium-r-normal-*-180-*\n"
68 # define refresh_spheremonics 0
69 # define release_spheremonics 0
71 #define countof(x) (sizeof((x))/sizeof((*x)))
73 #include "xlockmore.h"
78 #include "gltrackball.h"
81 #ifdef USE_GL /* whole file */
83 #define DEF_DURATION "100"
84 #define DEF_SPIN "XYZ"
85 #define DEF_WANDER "False"
86 #define DEF_RESOLUTION "64"
87 #define DEF_BBOX "False"
88 #define DEF_GRID "True"
89 #define DEF_SMOOTH "True"
90 #define DEF_PARMS "(default)"
93 GLXContext *glx_context;
95 trackball_state *trackball;
112 int polys1, polys2; /* polygon counts */
114 # ifdef HAVE_GLBITMAP
118 texture_font_data *font_data;
124 } spheremonics_configuration;
126 static spheremonics_configuration *ccs = NULL;
128 static char *do_spin;
129 static Bool do_wander;
133 static char *static_parms;
137 static XrmOptionDescRec opts[] = {
138 { "-spin", ".spin", XrmoptionSepArg, 0 },
139 { "+spin", ".spin", XrmoptionNoArg, "" },
140 { "-wander", ".wander", XrmoptionNoArg, "True" },
141 { "+wander", ".wander", XrmoptionNoArg, "False" },
142 { "-resolution", ".resolution", XrmoptionSepArg, 0 },
143 { "-duration", ".duration", XrmoptionSepArg, 0 },
144 { "-bbox", ".bbox", XrmoptionNoArg, "True" },
145 { "+bbox", ".bbox", XrmoptionNoArg, "False" },
146 { "-grid", ".grid", XrmoptionNoArg, "True" },
147 { "+grid", ".grid", XrmoptionNoArg, "False" },
148 {"-smooth", ".smooth", XrmoptionNoArg, "True" },
149 {"+smooth", ".smooth", XrmoptionNoArg, "False" },
150 { "-parameters", ".parameters", XrmoptionSepArg, 0 },
153 static argtype vars[] = {
154 {&do_spin, "spin", "Spin", DEF_SPIN, t_String},
155 {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
156 {&res, "resolution", "Resolution", DEF_RESOLUTION, t_Int},
157 {&duration, "duration", "Duration", DEF_DURATION, t_Int},
158 {&do_bbox, "bbox", "BBox", DEF_BBOX, t_Bool},
159 {&do_grid, "grid", "Grid", DEF_GRID, t_Bool},
160 {&smooth_p, "smooth", "Smooth", DEF_SMOOTH, t_Bool},
161 {&static_parms, "parameters", "Parameters", DEF_PARMS, t_String},
164 ENTRYPOINT ModeSpecOpt spheremonics_opts = {countof(opts), opts, countof(vars), vars, NULL};
167 /* Window management, etc
170 reshape_spheremonics (ModeInfo *mi, int width, int height)
172 GLfloat h = (GLfloat) height / (GLfloat) width;
174 glViewport (0, 0, (GLint) width, (GLint) height);
176 glMatrixMode(GL_PROJECTION);
178 gluPerspective (30.0, 1/h, 1.0, 100.0);
180 glMatrixMode(GL_MODELVIEW);
182 gluLookAt( 0.0, 0.0, 30.0,
186 glClear(GL_COLOR_BUFFER_BIT);
191 gl_init (ModeInfo *mi)
193 /* spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)]; */
194 int wire = MI_IS_WIREFRAME(mi);
196 static const GLfloat pos[4] = {5.0, 5.0, 10.0, 1.0};
198 glEnable(GL_NORMALIZE);
202 glLightfv(GL_LIGHT0, GL_POSITION, pos);
203 glEnable(GL_LIGHTING);
205 glEnable(GL_DEPTH_TEST);
207 /* With objects that have proper winding and normals set up on all
208 their faces, one can cull back-faces; however, these equations
209 generate objects that are sometimes "inside out", and determining
210 whether a facet has been inverted like that is really hard.
211 So we render both front and back faces, at a probable performance
212 penalty on non-accelerated systems.
214 When rendering back faces, we also need to do two-sided lighting,
215 or the fact that the normals are flipped gives us too-dark surfaces
216 on the inside-out surfaces.
218 This isn't generally something you'd want, because you end up
219 with half the lighting dynamic range (kind of.) So if you had
220 a sphere with correctly pointing normals, and a single light
221 source, it would be illuminated from two sides. In this case,
222 though, it saves us from a difficult and time consuming
223 inside/outside test. And we don't really care about a precise
226 glDisable(GL_CULL_FACE);
227 glLightModeli (GL_LIGHT_MODEL_TWO_SIDE, True);
232 glEnable (GL_LINE_SMOOTH);
233 glHint (GL_LINE_SMOOTH_HINT, GL_NICEST);
234 glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
241 /* generate the object */
244 sphere_eval (double theta, double phi, int *m)
249 r += pow (sin(m[0] * phi), (double)m[1]);
250 r += pow (cos(m[2] * phi), (double)m[3]);
251 r += pow (sin(m[4] * theta),(double)m[5]);
252 r += pow (cos(m[6] * theta),(double)m[7]);
254 p.x = r * sin(phi) * cos(theta);
256 p.z = r * sin(phi) * sin(theta);
263 do_color (int i, XColor *colors)
266 c[0] = colors[i].red / 65535.0;
267 c[1] = colors[i].green / 65535.0;
268 c[2] = colors[i].blue / 65535.0;
270 glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, c);
271 glColor3f (c[0], c[1], c[2]);
276 draw_circle (ModeInfo *mi, Bool teeth_p)
281 GLfloat step = (M_PI / 180);
283 glBegin(GL_LINE_LOOP);
284 for (th = 0; th < M_PI*2; th += step*5)
289 glVertex3f(x*r1, y*r1, 0);
293 if (!teeth_p) return;
296 for (th = 0; th < M_PI*2; th += step)
299 GLfloat r2 = r1 - 0.01;
302 else if (! (tick % 5))
308 glVertex3f(x*r1, y*r1, 0);
309 glVertex3f(x*r2, y*r2, 0);
316 draw_bounding_box (ModeInfo *mi)
318 /* spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)]; */
320 static const GLfloat c1[4] = { 0.2, 0.2, 0.6, 1.0 };
321 static const GLfloat c2[4] = { 1.0, 0.0, 0.0, 1.0 };
322 int wire = MI_IS_WIREFRAME(mi);
324 GLfloat x1,y1,z1,x2,y2,z2;
338 if (do_bbox && !wire)
340 glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, c1);
342 glEnable(GL_CULL_FACE);
344 glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
346 glVertex3f(x1, y1, z1); glVertex3f(x1, y1, z2);
347 glVertex3f(x2, y1, z2); glVertex3f(x2, y1, z1);
349 glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
350 glNormal3f(0, -1, 0);
351 glVertex3f(x2, y2, z1); glVertex3f(x2, y2, z2);
352 glVertex3f(x1, y2, z2); glVertex3f(x1, y2, z1);
354 glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
356 glVertex3f(x1, y1, z1); glVertex3f(x2, y1, z1);
357 glVertex3f(x2, y2, z1); glVertex3f(x1, y2, z1);
359 glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
360 glNormal3f(0, 0, -1);
361 glVertex3f(x1, y2, z2); glVertex3f(x2, y2, z2);
362 glVertex3f(x2, y1, z2); glVertex3f(x1, y1, z2);
364 glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
366 glVertex3f(x1, y2, z1); glVertex3f(x1, y2, z2);
367 glVertex3f(x1, y1, z2); glVertex3f(x1, y1, z1);
369 glBegin(wire ? GL_LINE_LOOP : GL_QUADS);
370 glNormal3f(-1, 0, 0);
371 glVertex3f(x2, y1, z1); glVertex3f(x2, y1, z2);
372 glVertex3f(x2, y2, z2); glVertex3f(x2, y2, z1);
374 glDisable(GL_CULL_FACE);
379 glDisable (GL_LIGHTING);
380 glColor3f (c2[0], c2[1], c2[2]);
383 glVertex3f(0, -0.66, 0);
384 glVertex3f(0, 0.66, 0);
386 draw_circle (mi, True);
387 glRotatef(90, 1, 0, 0);
388 draw_circle (mi, True);
389 glRotatef(90, 0, 1, 0);
390 draw_circle (mi, True);
397 if (x1 > 0) x1 = 0; if (x2 < 0) x2 = 0;
398 if (y1 > 0) y1 = 0; if (y2 < 0) y2 = 0;
399 if (z1 > 0) z1 = 0; if (z2 < 0) z2 = 0;
400 glVertex3f(x1, 0, 0); glVertex3f(x2, 0, 0);
401 glVertex3f(0 , y1, 0); glVertex3f(0, y2, 0);
402 glVertex3f(0, 0, z1); glVertex3f(0, 0, z2);
410 do_tracer (ModeInfo *mi)
412 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
414 if (cc->tracer == -1 &&
416 !(random() % (duration * 4)))
419 cc->tracer = ((random() & 1) ? 0 : 180);
421 cc->mesher = ((random() % ((duration / 3) + 1)) +
422 (random() % ((duration / 3) + 1)));
427 int d = (90 - cc->tracer);
428 GLfloat th = d * (M_PI / 180);
429 GLfloat x = cos (th);
430 GLfloat y = sin (th);
431 GLfloat s = 1.5 / cc->scale;
435 static const GLfloat c[4] = { 0.6, 0.5, 1.0, 1.0 };
437 glDisable (GL_LIGHTING);
440 glRotatef (90, 1, 0, 0);
441 glTranslatef (0, 0, y*s/2);
444 glColor3f (c[0], c[1], c[2]);
445 draw_circle (mi, False);
448 if (! MI_IS_WIREFRAME(mi)) glEnable (GL_LIGHTING);
452 if (cc->tracer == 180 || cc->tracer == 360)
459 unit_spheremonics (ModeInfo *mi,
460 int resolution, Bool wire, int *m, XColor *colors)
462 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
472 cc->bbox[0].x = cc->bbox[0].y = cc->bbox[0].z = 0;
473 cc->bbox[1].x = cc->bbox[1].y = cc->bbox[1].z = 0;
475 du = (M_PI+M_PI) / (double)res; /* Theta */
476 dv = M_PI / (double)res; /* Phi */
481 glBegin (wire ? GL_LINE_LOOP : GL_QUADS);
483 for (i = 0; i < res; i++) {
485 for (j = 0; j < res; j++) {
487 q[0] = sphere_eval (u, v, m);
488 n[0] = calc_normal(q[0],
489 sphere_eval (u+du/10, v, m),
490 sphere_eval (u, v+dv/10, m));
491 glNormal3f(n[0].x,n[0].y,n[0].z);
492 if (!wire) do_color (i, colors);
493 glVertex3f(q[0].x,q[0].y,q[0].z);
495 q[1] = sphere_eval (u+du, v, m);
496 n[1] = calc_normal(q[1],
497 sphere_eval (u+du+du/10, v, m),
498 sphere_eval (u+du, v+dv/10, m));
499 glNormal3f(n[1].x,n[1].y,n[1].z);
500 if (!wire) do_color ((i+1)%res, colors);
501 glVertex3f(q[1].x,q[1].y,q[1].z);
503 q[2] = sphere_eval (u+du, v+dv, m);
504 n[2] = calc_normal(q[2],
505 sphere_eval (u+du+du/10, v+dv, m),
506 sphere_eval (u+du, v+dv+dv/10, m));
507 glNormal3f(n[2].x,n[2].y,n[2].z);
508 if (!wire) do_color ((i+1)%res, colors);
509 glVertex3f(q[2].x,q[2].y,q[2].z);
511 q[3] = sphere_eval (u,v+dv, m);
512 n[3] = calc_normal(q[3],
513 sphere_eval (u+du/10, v+dv, m),
514 sphere_eval (u, v+dv+dv/10, m));
515 glNormal3f(n[3].x,n[3].y,n[3].z);
516 if (!wire) do_color (i, colors);
517 glVertex3f(q[3].x,q[3].y,q[3].z);
521 # define CHECK_BBOX(N) \
522 if (q[(N)].x < cc->bbox[0].x) cc->bbox[0].x = q[(N)].x; \
523 if (q[(N)].y < cc->bbox[0].y) cc->bbox[0].y = q[(N)].y; \
524 if (q[(N)].z < cc->bbox[0].z) cc->bbox[0].z = q[(N)].z; \
525 if (q[(N)].x > cc->bbox[1].x) cc->bbox[1].x = q[(N)].x; \
526 if (q[(N)].y > cc->bbox[1].y) cc->bbox[1].y = q[(N)].y; \
527 if (q[(N)].z > cc->bbox[1].z) cc->bbox[1].z = q[(N)].z
539 GLfloat w = cc->bbox[1].x - cc->bbox[0].x;
540 GLfloat h = cc->bbox[1].y - cc->bbox[0].y;
541 GLfloat d = cc->bbox[1].z - cc->bbox[0].z;
542 GLfloat wh = (w > h ? w : h);
543 GLfloat hd = (h > d ? h : d);
544 GLfloat scale = (wh > hd ? wh : hd);
548 if (wire < 2 && (do_bbox || do_grid))
550 GLfloat s = scale * 1.5;
553 draw_bounding_box (mi);
562 init_colors (ModeInfo *mi)
564 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
566 cc->ncolors = cc->resolution;
567 cc->colors = (XColor *) calloc(cc->ncolors, sizeof(XColor));
568 make_smooth_colormap (0, 0, 0,
569 cc->colors, &cc->ncolors,
572 /* brighter colors, please... */
573 for (i = 0; i < cc->ncolors; i++)
575 cc->colors[i].red = (cc->colors[i].red / 2) + 32767;
576 cc->colors[i].green = (cc->colors[i].green / 2) + 32767;
577 cc->colors[i].blue = (cc->colors[i].blue / 2) + 32767;
582 /* Pick one of the parameters to the function and tweak it up or down.
585 tweak_parameters (ModeInfo *mi)
587 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
589 /* If the -parameters command line option was specified, just use that
594 !!strcasecmp (static_parms, "(default)"))
598 if (8 == sscanf (static_parms, "%d %d %d %d %d %d %d %d %c",
599 &cc->m[0], &cc->m[1], &cc->m[2], &cc->m[3],
600 &cc->m[4], &cc->m[5], &cc->m[6], &cc->m[7],
603 else if (strlen (static_parms) == 8 &&
604 1 == sscanf (static_parms, "%lu %c", &n, &dummy))
606 const char *s = static_parms;
609 cc->m[i++] = (*s++)-'0';
613 "%s: -parameters must be a string of 8 ints (not \"%s\")\n",
614 progname, static_parms);
621 # define SHIFT(N) do { \
623 cc->m[n] += cc->dm[n]; \
625 cc->m[n] = 0, cc->dm[n] = -cc->dm[n]; \
626 else if (cc->m[n] >= cc->m_max) \
627 cc->m[n] = cc->m_max, cc->dm[n] = -cc->dm[n]; \
630 /* else if (cc->m[n] >= cc->m_max/2 && (! (random() % 3))) \
631 cc->m[n] = cc->m_max/2, cc->dm[n] = -cc->dm[n]; \
636 case 0: SHIFT(0); break;
637 case 1: SHIFT(1); break;
638 case 2: SHIFT(2); break;
639 case 3: SHIFT(3); break;
640 case 4: SHIFT(4); break;
641 case 5: SHIFT(5); break;
642 case 6: SHIFT(6); break;
643 case 7: SHIFT(7); break;
644 default: abort(); break;
649 printf ("%s: state: %d %d %d %d %d %d %d %d\n",
651 cc->m[0], cc->m[1], cc->m[2], cc->m[3],
652 cc->m[4], cc->m[5], cc->m[6], cc->m[7]);
659 generate_spheremonics (ModeInfo *mi)
661 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
662 int wire = MI_IS_WIREFRAME(mi);
664 tweak_parameters (mi);
666 if (!cc->done_once || (0 == (random() % 20)))
669 cc->done_once = True;
673 glNewList(cc->dlist, GL_COMPILE);
674 cc->polys1 = unit_spheremonics (mi, cc->resolution, wire,cc->m,cc->colors);
677 glNewList(cc->dlist2, GL_COMPILE);
679 glScalef (1.05, 1.05, 1.05);
680 cc->polys2 = unit_spheremonics (mi, cc->resolution, 2, cc->m, cc->colors);
690 init_spheremonics (ModeInfo *mi)
692 spheremonics_configuration *cc;
695 ccs = (spheremonics_configuration *)
696 calloc (MI_NUM_SCREENS(mi), sizeof (spheremonics_configuration));
698 fprintf(stderr, "%s: out of memory\n", progname);
703 cc = &ccs[MI_SCREEN(mi)];
705 if ((cc->glx_context = init_GL(mi)) != NULL) {
707 reshape_spheremonics (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
711 Bool spinx=False, spiny=False, spinz=False;
712 double spin_speed = 1.0;
713 double wander_speed = 0.03;
718 if (*s == 'x' || *s == 'X') spinx = True;
719 else if (*s == 'y' || *s == 'Y') spiny = True;
720 else if (*s == 'z' || *s == 'Z') spinz = True;
721 else if (*s == '0') ;
725 "%s: spin must contain only the characters X, Y, or Z (not \"%s\")\n",
732 cc->rot = make_rotator (spinx ? spin_speed : 0,
733 spinz ? spin_speed : 0,
734 spiny ? spin_speed : 0,
736 do_wander ? wander_speed : 0,
737 (spinx && spiny && spinz));
738 cc->trackball = gltrackball_init ();
744 cc->resolution = res;
746 # ifdef HAVE_GLBITMAP
747 load_font (mi->dpy, "labelfont", &cc->font, &cc->font_list);
748 # else /* !HAVE_GLBITMAP */
749 cc->font_data = load_texture_font (mi->dpy, "labelFont");
750 # endif /* !HAVE_GLBITMAP */
752 cc->dlist = glGenLists(1);
753 cc->dlist2 = glGenLists(1);
755 cc->m_max = 4; /* 9? */
758 for (i = 0; i < countof(cc->dm); i++)
759 cc->dm[i] = 1; /* going up! */
761 /* Generate a few more times so we don't always start off with a sphere */
762 for (i = 0; i < 5; i++)
763 tweak_parameters (mi);
766 generate_spheremonics(mi);
771 spheremonics_handle_event (ModeInfo *mi, XEvent *event)
773 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
775 if (event->xany.type == ButtonPress &&
776 event->xbutton.button == Button1)
778 cc->button_down_p = True;
779 gltrackball_start (cc->trackball,
780 event->xbutton.x, event->xbutton.y,
781 MI_WIDTH (mi), MI_HEIGHT (mi));
784 else if (event->xany.type == ButtonRelease &&
785 event->xbutton.button == Button1)
787 cc->button_down_p = False;
790 else if (event->xany.type == ButtonPress &&
791 (event->xbutton.button == Button4 ||
792 event->xbutton.button == Button5 ||
793 event->xbutton.button == Button6 ||
794 event->xbutton.button == Button7))
796 gltrackball_mousewheel (cc->trackball, event->xbutton.button, 10,
797 !!event->xbutton.state);
800 else if (event->xany.type == KeyPress)
804 XLookupString (&event->xkey, &c, 1, &keysym, 0);
806 if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
808 cc->change_tick = duration;
812 else if (event->xany.type == MotionNotify &&
815 gltrackball_track (cc->trackball,
816 event->xmotion.x, event->xmotion.y,
817 MI_WIDTH (mi), MI_HEIGHT (mi));
826 draw_spheremonics (ModeInfo *mi)
828 spheremonics_configuration *cc = &ccs[MI_SCREEN(mi)];
829 Display *dpy = MI_DISPLAY(mi);
830 Window window = MI_WINDOW(mi);
832 if (!cc->glx_context)
835 glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(cc->glx_context));
839 glShadeModel(GL_SMOOTH);
841 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
845 glScalef(1.1, 1.1, 1.1);
849 get_position (cc->rot, &x, &y, &z, !cc->button_down_p);
850 glTranslatef((x - 0.5) * 8,
854 /* Do it twice because we don't track the device's orientation. */
855 glRotatef( current_device_rotation(), 0, 0, 1);
856 gltrackball_rotate (cc->trackball);
857 glRotatef(-current_device_rotation(), 0, 0, 1);
859 get_rotation (cc->rot, &x, &y, &z, !cc->button_down_p);
860 glRotatef (x * 360, 1.0, 0.0, 0.0);
861 glRotatef (y * 360, 0.0, 1.0, 0.0);
862 glRotatef (z * 360, 0.0, 0.0, 1.0);
867 mi->polygon_count = 0;
869 glScalef (cc->scale, cc->scale, cc->scale);
870 glCallList (cc->dlist);
871 mi->polygon_count += cc->polys1;
873 if (cc->mesher >= 0 /* || cc->button_down_p */)
875 glDisable (GL_LIGHTING);
876 glCallList (cc->dlist2);
877 mi->polygon_count += cc->polys2;
884 if (cc->button_down_p)
888 ((cc->m[0]<10 && cc->m[1]<10 && cc->m[2]<10 && cc->m[3]<10 &&
889 cc->m[4]<10 && cc->m[5]<10 && cc->m[6]<10 && cc->m[7]<10)
891 : "%d %d %d %d %d %d %d %d"),
892 cc->m[0], cc->m[1], cc->m[2], cc->m[3],
893 cc->m[4], cc->m[5], cc->m[6], cc->m[7]);
895 glColor3f(1.0, 1.0, 0.0);
896 print_gl_string (mi->dpy,
897 # ifdef HAVE_GLBITMAP
898 cc->font, cc->font_list,
899 # else /* !HAVE_GLBITMAP */
901 # endif /* !HAVE_GLBITMAP */
902 mi->xgwa.width, mi->xgwa.height,
903 10, mi->xgwa.height - 10,
909 if (cc->change_tick++ >= duration && !cc->button_down_p)
911 generate_spheremonics(mi);
913 cc->mesher = -1; /* turn off the mesh when switching objects */
919 if (mi->fps_p) do_fps (mi);
922 glXSwapBuffers(dpy, window);
925 XSCREENSAVER_MODULE ("Spheremonics", spheremonics)