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-rw-r--r--progs/demos/fire.c784
1 files changed, 0 insertions, 784 deletions
diff --git a/progs/demos/fire.c b/progs/demos/fire.c
deleted file mode 100644
index bb912fb4473..00000000000
--- a/progs/demos/fire.c
+++ /dev/null
@@ -1,784 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli ([email protected])
- * Humanware s.r.l.
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <time.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#include <mmsystem.h>
-#endif
-
-#include <GL/glut.h>
-#include "readtex.h"
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-#define vinit(a,i,j,k) {\
- (a)[0]=i;\
- (a)[1]=j;\
- (a)[2]=k;\
-}
-
-#define vinit4(a,i,j,k,w) {\
- (a)[0]=i;\
- (a)[1]=j;\
- (a)[2]=k;\
- (a)[3]=w;\
-}
-
-
-#define vadds(a,dt,b) {\
- (a)[0]+=(dt)*(b)[0];\
- (a)[1]+=(dt)*(b)[1];\
- (a)[2]+=(dt)*(b)[2];\
-}
-
-#define vequ(a,b) {\
- (a)[0]=(b)[0];\
- (a)[1]=(b)[1];\
- (a)[2]=(b)[2];\
-}
-
-#define vinter(a,dt,b,c) {\
- (a)[0]=(dt)*(b)[0]+(1.0-dt)*(c)[0];\
- (a)[1]=(dt)*(b)[1]+(1.0-dt)*(c)[1];\
- (a)[2]=(dt)*(b)[2]+(1.0-dt)*(c)[2];\
-}
-
-#define clamp(a) ((a) < 0.0 ? 0.0 : ((a) < 1.0 ? (a) : 1.0))
-
-#define vclamp(v) {\
- (v)[0]=clamp((v)[0]);\
- (v)[1]=clamp((v)[1]);\
- (v)[2]=clamp((v)[2]);\
-}
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-static GLint NiceFog = 1;
-
-#define DIMP 20.0
-#define DIMTP 16.0
-
-#define RIDCOL 0.4
-
-#define NUMTREE 50
-#define TREEINR 2.5
-#define TREEOUTR 8.0
-
-#define AGRAV -9.8
-
-typedef struct
-{
- int age;
- float p[3][3];
- float v[3];
- float c[3][4];
-}
-part;
-
-static float treepos[NUMTREE][3];
-
-static float black[3] = { 0.0, 0.0, 0.0 };
-static float blu[3] = { 1.0, 0.2, 0.0 };
-static float blu2[3] = { 1.0, 1.0, 0.0 };
-
-static float fogcolor[4] = { 1.0, 1.0, 1.0, 1.0 };
-
-static float q[4][3] = {
- {-DIMP, 0.0, -DIMP},
- {DIMP, 0.0, -DIMP},
- {DIMP, 0.0, DIMP},
- {-DIMP, 0.0, DIMP}
-};
-
-static float qt[4][2] = {
- {-DIMTP, -DIMTP},
- {DIMTP, -DIMTP},
- {DIMTP, DIMTP},
- {-DIMTP, DIMTP}
-};
-
-static int win = 0;
-
-static int np;
-static float eject_r, dt, maxage, eject_vy, eject_vl;
-static short shadows;
-static float ridtri;
-static int fog = 1;
-static int help = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static part *p;
-
-static GLuint groundid;
-static GLuint treeid;
-
-static float obs[3] = { 2.0, 1.0, 0.0 };
-static float dir[3];
-static float v = 0.0;
-static float alpha = -84.0;
-static float beta = 90.0;
-
-static float
-vrnd(void)
-{
- return (((float) rand()) / RAND_MAX);
-}
-
-static void
-setnewpart(part * p)
-{
- float a, v[3], *c;
-
- p->age = 0;
-
- a = vrnd() * 3.14159265359 * 2.0;
-
- vinit(v, sin(a) * eject_r * vrnd(), 0.15, cos(a) * eject_r * vrnd());
- vinit(p->p[0], v[0] + vrnd() * ridtri, v[1] + vrnd() * ridtri,
- v[2] + vrnd() * ridtri);
- vinit(p->p[1], v[0] + vrnd() * ridtri, v[1] + vrnd() * ridtri,
- v[2] + vrnd() * ridtri);
- vinit(p->p[2], v[0] + vrnd() * ridtri, v[1] + vrnd() * ridtri,
- v[2] + vrnd() * ridtri);
-
- vinit(p->v, v[0] * eject_vl / (eject_r / 2),
- vrnd() * eject_vy + eject_vy / 2, v[2] * eject_vl / (eject_r / 2));
-
- c = blu;
-
- vinit4(p->c[0], c[0] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
- c[1] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
- c[2] * ((1.0 - RIDCOL) + vrnd() * RIDCOL), 1.0);
- vinit4(p->c[1], c[0] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
- c[1] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
- c[2] * ((1.0 - RIDCOL) + vrnd() * RIDCOL), 1.0);
- vinit4(p->c[2], c[0] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
- c[1] * ((1.0 - RIDCOL) + vrnd() * RIDCOL),
- c[2] * ((1.0 - RIDCOL) + vrnd() * RIDCOL), 1.0);
-}
-
-static void
-setpart(part * p)
-{
- float fact;
-
- if (p->p[0][1] < 0.1) {
- setnewpart(p);
- return;
- }
-
- p->v[1] += AGRAV * dt;
-
- vadds(p->p[0], dt, p->v);
- vadds(p->p[1], dt, p->v);
- vadds(p->p[2], dt, p->v);
-
- p->age++;
-
- if ((p->age) > maxage) {
- vequ(p->c[0], blu2);
- vequ(p->c[1], blu2);
- vequ(p->c[2], blu2);
- }
- else {
- fact = 1.0 / maxage;
- vadds(p->c[0], fact, blu2);
- vclamp(p->c[0]);
- p->c[0][3] = fact * (maxage - p->age);
-
- vadds(p->c[1], fact, blu2);
- vclamp(p->c[1]);
- p->c[1][3] = fact * (maxage - p->age);
-
- vadds(p->c[2], fact, blu2);
- vclamp(p->c[2]);
- p->c[2][3] = fact * (maxage - p->age);
- }
-}
-
-static void
-drawtree(float x, float y, float z)
-{
- glBegin(GL_QUADS);
- glTexCoord2f(0.0, 0.0);
- glVertex3f(x - 1.5, y + 0.0, z);
-
- glTexCoord2f(1.0, 0.0);
- glVertex3f(x + 1.5, y + 0.0, z);
-
- glTexCoord2f(1.0, 1.0);
- glVertex3f(x + 1.5, y + 3.0, z);
-
- glTexCoord2f(0.0, 1.0);
- glVertex3f(x - 1.5, y + 3.0, z);
-
-
- glTexCoord2f(0.0, 0.0);
- glVertex3f(x, y + 0.0, z - 1.5);
-
- glTexCoord2f(1.0, 0.0);
- glVertex3f(x, y + 0.0, z + 1.5);
-
- glTexCoord2f(1.0, 1.0);
- glVertex3f(x, y + 3.0, z + 1.5);
-
- glTexCoord2f(0.0, 1.0);
- glVertex3f(x, y + 3.0, z - 1.5);
-
- glEnd();
-
-}
-
-static void
-calcposobs(void)
-{
- dir[0] = sin(alpha * M_PI / 180.0);
- dir[2] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
- dir[1] = cos(beta * M_PI / 180.0);
-
- if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
- dir[0] = 0;
- if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
- dir[1] = 0;
- if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
- dir[2] = 0;
-
- obs[0] += v * dir[0];
- obs[1] += v * dir[1];
- obs[2] += v * dir[2];
-}
-
-static void
-printstring(void *font, char *string)
-{
- int len, i;
-
- len = (int) strlen(string);
- for (i = 0; i < len; i++)
- glutBitmapCharacter(font, string[i]);
-}
-
-static void
-reshape(int width, int height)
-{
- WIDTH = width;
- HEIGHT = height;
- glViewport(0, 0, (GLint) width, (GLint) height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(70.0, width / (float) height, 0.1, 30.0);
-
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void
-printhelp(void)
-{
- glColor4f(0.0, 0.0, 0.0, 0.5);
- glRecti(40, 40, 600, 440);
-
- glColor3f(1.0, 0.0, 0.0);
- glRasterPos2i(300, 420);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
- glRasterPos2i(60, 390);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
-
- glRasterPos2i(60, 360);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Increase particle size");
- glRasterPos2i(60, 330);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "T - Decrease particle size");
-
- glRasterPos2i(60, 300);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "r - Increase emission radius");
- glRasterPos2i(60, 270);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "R - Decrease emission radius");
-
- glRasterPos2i(60, 240);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
- glRasterPos2i(60, 210);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "s - Toggle shadows");
- glRasterPos2i(60, 180);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
- glRasterPos2i(60, 150);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
- glRasterPos2i(60, 120);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-
- glRasterPos2i(60, 90);
- if (joyavailable)
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,
- "j - Toggle jostick control (Joystick control available)");
- else
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,
- "(No Joystick control available)");
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
- static UINT max[2] = { 0, 0 };
- static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
- MMRESULT res;
- JOYINFO joy;
-
- res = joyGetPos(JOYSTICKID1, &joy);
-
- if (res == JOYERR_NOERROR) {
- joyavailable = 1;
-
- if (max[0] < joy.wXpos)
- max[0] = joy.wXpos;
- if (min[0] > joy.wXpos)
- min[0] = joy.wXpos;
- center[0] = (max[0] + min[0]) / 2;
-
- if (max[1] < joy.wYpos)
- max[1] = joy.wYpos;
- if (min[1] > joy.wYpos)
- min[1] = joy.wYpos;
- center[1] = (max[1] + min[1]) / 2;
-
- if (joyactive) {
- if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
- alpha +=
- 2.5 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
- if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
- beta += 2.5 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
- if (joy.wButtons & JOY_BUTTON1)
- v += 0.01;
- if (joy.wButtons & JOY_BUTTON2)
- v -= 0.01;
- }
- }
- else
- joyavailable = 0;
-#endif
-}
-
-static void
-drawfire(void)
-{
- static char frbuf[80] = "";
- int j;
- static double t0 = -1.;
- double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
- if (t0 < 0.0)
- t0 = t;
- dt = (t - t0) * 1.0;
- t0 = t;
-
- dojoy();
-
- if (NiceFog)
- glHint(GL_FOG_HINT, GL_NICEST);
- else
- glHint(GL_FOG_HINT, GL_DONT_CARE);
-
- glEnable(GL_DEPTH_TEST);
-
- if (fog)
- glEnable(GL_FOG);
- else
- glDisable(GL_FOG);
-
- glDepthMask(GL_TRUE);
- glClearColor(1.0, 1.0, 1.0, 1.0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
- calcposobs();
- gluLookAt(obs[0], obs[1], obs[2],
- obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
- 0.0, 1.0, 0.0);
-
- glColor4f(1.0, 1.0, 1.0, 1.0);
-
- glEnable(GL_TEXTURE_2D);
-
- glBindTexture(GL_TEXTURE_2D, groundid);
-#if 1
- glBegin(GL_QUADS);
- glTexCoord2fv(qt[0]);
- glVertex3fv(q[0]);
- glTexCoord2fv(qt[1]);
- glVertex3fv(q[1]);
- glTexCoord2fv(qt[2]);
- glVertex3fv(q[2]);
- glTexCoord2fv(qt[3]);
- glVertex3fv(q[3]);
- glEnd();
-#else
- /* Subdivide the ground into a bunch of quads. This improves fog
- * if GL_FOG_HINT != GL_NICEST
- */
- {
- float x, y;
- float dx = 1.0, dy = 1.0;
- glBegin(GL_QUADS);
- for (y = -DIMP; y < DIMP; y += 1.0) {
- for (x = -DIMP; x < DIMP; x += 1.0) {
- glTexCoord2f(0, 0); glVertex3f(x, 0, y);
- glTexCoord2f(1, 0); glVertex3f(x+dx, 0, y);
- glTexCoord2f(1, 1); glVertex3f(x+dx, 0, y+dy);
- glTexCoord2f(0, 1); glVertex3f(x, 0, y+dy);
- }
- }
- glEnd();
- }
-#endif
-
-
- glEnable(GL_ALPHA_TEST);
- glAlphaFunc(GL_GEQUAL, 0.9);
-
- glBindTexture(GL_TEXTURE_2D, treeid);
- for (j = 0; j < NUMTREE; j++)
- drawtree(treepos[j][0], treepos[j][1], treepos[j][2]);
-
- glDisable(GL_TEXTURE_2D);
- glDepthMask(GL_FALSE);
- glDisable(GL_ALPHA_TEST);
-
- if (shadows) {
- glBegin(GL_TRIANGLES);
- for (j = 0; j < np; j++) {
- glColor4f(black[0], black[1], black[2], p[j].c[0][3]);
- glVertex3f(p[j].p[0][0], 0.1, p[j].p[0][2]);
-
- glColor4f(black[0], black[1], black[2], p[j].c[1][3]);
- glVertex3f(p[j].p[1][0], 0.1, p[j].p[1][2]);
-
- glColor4f(black[0], black[1], black[2], p[j].c[2][3]);
- glVertex3f(p[j].p[2][0], 0.1, p[j].p[2][2]);
- }
- glEnd();
- }
-
- glBegin(GL_TRIANGLES);
- for (j = 0; j < np; j++) {
- glColor4fv(p[j].c[0]);
- glVertex3fv(p[j].p[0]);
-
- glColor4fv(p[j].c[1]);
- glVertex3fv(p[j].p[1]);
-
- glColor4fv(p[j].c[2]);
- glVertex3fv(p[j].p[2]);
-
- setpart(&p[j]);
- }
- glEnd();
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_ALPHA_TEST);
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_FOG);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glColor3f(1.0, 0.0, 0.0);
- glRasterPos2i(10, 10);
- printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
- glRasterPos2i(370, 470);
- printstring(GLUT_BITMAP_HELVETICA_10,
- "Fire V1.5 Written by David Bucciarelli ([email protected])");
-
- if (help)
- printhelp();
-
- reshape(WIDTH, HEIGHT);
- glPopMatrix();
-
- glutSwapBuffers();
-
- Frames++;
- {
- GLint t = glutGet(GLUT_ELAPSED_TIME);
- if (t - T0 >= 2000) {
- GLfloat seconds = (t - T0) / 1000.0;
- GLfloat fps = Frames / seconds;
- sprintf(frbuf, "Frame rate: %f", fps);
- T0 = t;
- Frames = 0;
- }
- }
-}
-
-
-static void
-idle(void)
-{
- glutPostRedisplay();
-}
-
-
-static void
-special(int key, int x, int y)
-{
- switch (key) {
- case GLUT_KEY_LEFT:
- alpha += 2.0;
- break;
- case GLUT_KEY_RIGHT:
- alpha -= 2.0;
- break;
- case GLUT_KEY_DOWN:
- beta -= 2.0;
- break;
- case GLUT_KEY_UP:
- beta += 2.0;
- break;
- }
- glutPostRedisplay();
-}
-
-static void
-key(unsigned char key, int x, int y)
-{
- switch (key) {
- case 27:
- exit(0);
- break;
-
- case 'a':
- v += 0.0005;
- break;
- case 'z':
- v -= 0.0005;
- break;
-
- case 'j':
- joyactive = (!joyactive);
- break;
- case 'h':
- help = (!help);
- break;
- case 'f':
- fog = (!fog);
- break;
- case 's':
- shadows = !shadows;
- break;
- case 'R':
- eject_r -= 0.03;
- break;
- case 'r':
- eject_r += 0.03;
- break;
- case 't':
- ridtri += 0.005;
- break;
- case 'T':
- ridtri -= 0.005;
- break;
-#ifdef XMESA
- case ' ':
- XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
- fullscreen = (!fullscreen);
- break;
-#endif
- case 'n':
- NiceFog = !NiceFog;
- printf("NiceFog %d\n", NiceFog);
- break;
- }
- glutPostRedisplay();
-}
-
-static void
-inittextures(void)
-{
- GLenum gluerr;
- GLubyte tex[128][128][4];
-
- glGenTextures(1, &groundid);
- glBindTexture(GL_TEXTURE_2D, groundid);
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
- if (!LoadRGBMipmaps("../images/s128.rgb", GL_RGB)) {
- fprintf(stderr, "Error reading a texture.\n");
- exit(-1);
- }
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-
- glGenTextures(1, &treeid);
- glBindTexture(GL_TEXTURE_2D, treeid);
-
- if (1)
- {
- int w, h;
- GLenum format;
- int x, y;
- GLubyte *image = LoadRGBImage("../images/tree3.rgb", &w, &h, &format);
-
- if (!image) {
- fprintf(stderr, "Error reading a texture.\n");
- exit(-1);
- }
-
- for (y = 0; y < 128; y++)
- for (x = 0; x < 128; x++) {
- tex[x][y][0] = image[(y + x * 128) * 3];
- tex[x][y][1] = image[(y + x * 128) * 3 + 1];
- tex[x][y][2] = image[(y + x * 128) * 3 + 2];
- if ((tex[x][y][0] == tex[x][y][1]) &&
- (tex[x][y][1] == tex[x][y][2]) && (tex[x][y][2] == 255))
- tex[x][y][3] = 0;
- else
- tex[x][y][3] = 255;
- }
-
- if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, 4, 128, 128, GL_RGBA,
- GL_UNSIGNED_BYTE, (GLvoid *) (tex)))) {
- fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
- exit(-1);
- }
- }
- else {
- if (!LoadRGBMipmaps("../images/tree2.rgba", GL_RGBA)) {
- fprintf(stderr, "Error reading a texture.\n");
- exit(-1);
- }
- }
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-static void
-inittree(void)
-{
- int i;
- float dist;
-
- for (i = 0; i < NUMTREE; i++)
- do {
- treepos[i][0] = vrnd() * TREEOUTR * 2.0 - TREEOUTR;
- treepos[i][1] = 0.0;
- treepos[i][2] = vrnd() * TREEOUTR * 2.0 - TREEOUTR;
- dist =
- sqrt(treepos[i][0] * treepos[i][0] +
- treepos[i][2] * treepos[i][2]);
- } while ((dist < TREEINR) || (dist > TREEOUTR));
-}
-
-int
-main(int ac, char **av)
-{
- int i;
-
- fprintf(stderr,
- "Fire V1.5\nWritten by David Bucciarelli ([email protected])\n");
-
- /* Default settings */
-
- np = 800;
- eject_r = -0.65;
- dt = 0.015;
- eject_vy = 4;
- eject_vl = 1;
- shadows = 1;
- ridtri = 0.25;
-
- maxage = 1.0 / dt;
-
- if (ac == 2) {
- np = atoi(av[1]);
- if (np <= 0 || np > 1000000) {
- fprintf(stderr, "Invalid input.\n");
- exit(-1);
- }
- }
-
- if (ac == 4) {
- WIDTH = atoi(av[2]);
- HEIGHT = atoi(av[3]);
- }
-
- glutInitWindowSize(WIDTH, HEIGHT);
- glutInit(&ac, av);
-
- glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
- if (!(win = glutCreateWindow("Fire"))) {
- fprintf(stderr, "Error opening a window.\n");
- exit(-1);
- }
-
- reshape(WIDTH, HEIGHT);
-
- inittextures();
-
- glShadeModel(GL_FLAT);
- glEnable(GL_DEPTH_TEST);
-
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
- glEnable(GL_FOG);
- glFogi(GL_FOG_MODE, GL_EXP);
- glFogfv(GL_FOG_COLOR, fogcolor);
- glFogf(GL_FOG_DENSITY, 0.1);
-
- assert(np > 0);
- p = (part *) malloc(sizeof(part) * np);
- assert(p);
-
- for (i = 0; i < np; i++)
- setnewpart(&p[i]);
-
- inittree();
-
- glutKeyboardFunc(key);
- glutSpecialFunc(special);
- glutDisplayFunc(drawfire);
- glutIdleFunc(idle);
- glutReshapeFunc(reshape);
- glutMainLoop();
-
- return (0);
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 13:57:45 +0000