static void draw(void)
{
static int count=0;
static char frbuf[80];
int i;
float fr,base,offset;
dojoy();
glEnable(GL_DEPTH_TEST);
/*
if(count & 1) {
glDepthRange(1.0,0.5);
glDepthFunc(GL_GREATER);
} else {
glDepthRange(0.0,0.5);
glDepthFunc(GL_LESS);
}
*/
/*glClear(GL_COLOR_BUFFER_BIT);*/
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
if(usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if(fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
glShadeModel(GL_SMOOTH);
glPushMatrix();
calcposobs();
gluLookAt(obs[0],obs[1],obs[2],
obs[0]+dir[0],obs[1]+dir[1],obs[2]+dir[2],
0.0,0.0,1.0);
if(dir[0]>0) {
offset=8.0;
base=obs[0]-fmod(obs[0],8.0);
} else {
offset=-8.0;
base=obs[0]+(8.0-fmod(obs[0],8.0));
}
glPushMatrix();
glTranslatef(base-offset/2.0,0.0,0.0);
for(i=0;i<NUMBLOC;i++) {
glTranslatef(offset,0.0,0.0);
glBindTexture(GL_TEXTURE_2D,t1id);
drawobjs(striplength_skin_11,stripdata_skin_11);
glBindTexture(GL_TEXTURE_2D,t2id);
drawobjs(striplength_skin_12,stripdata_skin_12);
drawobjs(striplength_skin_9,stripdata_skin_9);
drawobjs(striplength_skin_13,stripdata_skin_13);
}
glPopMatrix();
glPopMatrix();
if((count % FRAME)==0) {
fr=gettime();
sprintf(frbuf,"Frame rate: %f",FRAME/fr);
}
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
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(350,470);
printstring(GLUT_BITMAP_HELVETICA_10,"Tunnel V1.3 Written by David Bucciarelli ([email protected])");
if(help)
printhelp();
reshape(WIDTH,HEIGHT);
glutSwapBuffers();
count++;
}
static void draw(void)
{
static char frbuf[80] = "";
dojoy();
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
if(usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if(fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
glEnable(GL_LIGHTING);
glShadeModel(GL_SMOOTH);
glPushMatrix();
calcposobs();
gluLookAt(obs[0],obs[1],obs[2],
obs[0]+dir[0],obs[1]+dir[1],obs[2]+dir[2],
0.0,0.0,1.0);
drawlight1();
glCallList(basedlist);
drawteapot();
drawlight2();
glPopMatrix();
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
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(350,470);
printstring(GLUT_BITMAP_HELVETICA_10,"Teapot V1.2 Written by David Bucciarelli ([email protected])");
if(help)
printhelp();
reshape(WIDTH,HEIGHT);
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);
printf("%s\n", frbuf);
fflush(stdout);
T0 = t;
Frames = 0;
}
}
}
static void
draw(void)
{
static char frbuf[80] = "";
int i;
float base, offset;
if (NiceFog)
glHint(GL_FOG_HINT, GL_NICEST);
else
glHint(GL_FOG_HINT, GL_DONT_CARE);
dojoy();
glClear(GL_COLOR_BUFFER_BIT);
if (usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if (fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
glShadeModel(GL_SMOOTH);
glPushMatrix();
calcposobs();
gluLookAt(obs[0], obs[1], obs[2],
obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
0.0, 0.0, 1.0);
if (dir[0] > 0) {
offset = 8.0;
base = obs[0] - fmod(obs[0], 8.0);
}
else {
offset = -8.0;
base = obs[0] + (8.0 - fmod(obs[0], 8.0));
}
glPushMatrix();
glTranslatef(base - offset / 2.0, 0.0, 0.0);
for (i = 0; i < NUMBLOC; i++) {
glTranslatef(offset, 0.0, 0.0);
glBindTexture(GL_TEXTURE_2D, t1id);
drawobjs(striplength_skin_11, stripdata_skin_11);
glBindTexture(GL_TEXTURE_2D, t2id);
drawobjs(striplength_skin_12, stripdata_skin_12);
drawobjs(striplength_skin_9, stripdata_skin_9);
drawobjs(striplength_skin_13, stripdata_skin_13);
}
glPopMatrix();
glPopMatrix();
glDisable(GL_TEXTURE_2D);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
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(350, 470);
printstring(GLUT_BITMAP_HELVETICA_10,
"Tunnel V1.5 Written by David Bucciarelli ([email protected])");
if (help)
printhelp();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
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
drawscene(void)
{
static char frbuf[80] = "";
dojoy();
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
if (usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if (fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
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);
drawterrain();
glPopMatrix();
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
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(350, 470);
printstring(GLUT_BITMAP_HELVETICA_10,
"Terrain V1.2 Written by David Bucciarelli ([email protected])");
glRasterPos2i(434, 457);
printstring(GLUT_BITMAP_HELVETICA_10,
"Based on a Mickael's demo ([email protected])");
if (help)
printhelp();
reshape(scrwidth, scrheight);
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 drawfire(void)
{
static int count=0;
static char frbuf[80];
int j;
float fr;
dojoy();
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);
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();
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();
if((count % FRAME)==0) {
fr=gettime();
sprintf(frbuf,"Frame rate: %f",FRAME/fr);
}
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();
count++;
}
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);
printf("%s\n", frbuf);
fflush(stdout);
T0 = t;
Frames = 0;
}
}
}
static void
draw(void)
{
static char frbuf[80] = "";
static GLfloat alpha = 0.0f;
static GLfloat beta = 0.0f;
static float fr = 0.0;
static double t0 = -1.;
double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
if (t0 < 0.0)
t0 = t;
dt = t - t0;
t0 = t;
dojoy();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if (fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
glPushMatrix();
calcposobs();
gluLookAt(obs[0], obs[1], obs[2],
obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
0.0, 0.0, 1.0);
/* Scene */
glEnable(GL_DEPTH_TEST);
glShadeModel(GL_SMOOTH);
glBindTexture(GL_TEXTURE_2D, t1id);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glColor3f(1.0f, 1.0f, 1.0f);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
if (normext)
glEnable(GL_RESCALE_NORMAL_EXT);
else
glEnable(GL_NORMALIZE);
glPushMatrix();
glRotatef(alpha, 0.0f, 0.0f, 1.0f);
glRotatef(beta, 1.0f, 0.0f, 0.0f);
totpoly = 0;
drawipers(0, FROM_NONE);
glPopMatrix();
alpha += 4.f * dt;
beta += 2.4f * dt;
glDisable(GL_LIGHTING);
glDisable(GL_LIGHT0);
glShadeModel(GL_FLAT);
if (normext)
glDisable(GL_RESCALE_NORMAL_EXT);
else
glDisable(GL_NORMALIZE);
glCallList(skydlist);
glPopMatrix();
/* Help Screen */
sprintf(frbuf,
"Frame rate: %0.2f LOD: %d Tot. poly.: %d Poly/sec: %.1f",
fr, LODbias, totpoly, totpoly * fr);
glDisable(GL_TEXTURE_2D);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
glDisable(GL_DEPTH_TEST);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
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(350, 470);
printstring(GLUT_BITMAP_HELVETICA_10,
"IperS V1.0 Written by David Bucciarelli ([email protected])");
if (help)
printhelp();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glutSwapBuffers();
Frames++;
{
GLint t = glutGet(GLUT_ELAPSED_TIME);
if (t - T0 >= 2000) {
GLfloat seconds = (t - T0) / 1000.0;
fr = Frames / seconds;
T0 = t;
Frames = 0;
}
}
}
static void draw(void)
{
static int count=0;
static char frbuf[80];
float fr;
dojoy();
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
if(usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if(fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
glEnable(GL_LIGHTING);
glShadeModel(GL_SMOOTH);
glPushMatrix();
calcposobs();
gluLookAt(obs[0],obs[1],obs[2],
obs[0]+dir[0],obs[1]+dir[1],obs[2]+dir[2],
0.0,0.0,1.0);
drawlight1();
glCallList(basedlist);
drawteapot();
drawlight2();
glPopMatrix();
if((count % FRAME)==0) {
fr=gettime();
sprintf(frbuf,"Frame rate: %f",FRAME/fr);
}
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
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(350,470);
printstring(GLUT_BITMAP_HELVETICA_10,"Teapot V1.2 Written by David Bucciarelli ([email protected])");
if(help)
printhelp();
reshape(WIDTH,HEIGHT);
glutSwapBuffers();
count++;
}
void drawscene(void)
{
static int count=0;
static char frbuf[80];
float fr;
dojoy();
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
if(usetex)
glEnable(GL_TEXTURE_2D);
else
glDisable(GL_TEXTURE_2D);
if(fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
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);
drawterrain();
glPopMatrix();
if((count % FRAME)==0) {
fr=gettime();
sprintf(frbuf,"Frame rate: %.3f",FRAME/fr);
}
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_FOG);
glShadeModel(GL_FLAT);
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(350,470);
printstring(GLUT_BITMAP_HELVETICA_10,"Terrain V1.2 Written by David Bucciarelli ([email protected])");
glRasterPos2i(434,457);
printstring(GLUT_BITMAP_HELVETICA_10,"Based on a Mickael's demo ([email protected])");
if(help)
printhelp();
reshape(scrwidth,scrheight);
glutSwapBuffers();
count++;
}
static void
draw(void)
{
static char frbuf[80] = "";
dojoy();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glEnable(GL_DEPTH_TEST);
if (fog)
glEnable(GL_FOG);
else
glDisable(GL_FOG);
glPushMatrix();
calcposobs();
gluLookAt(obs[0], obs[1], obs[2],
obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
0.0, 0.0, 1.0);
drawbase();
drawobj();
glColor3f(1.0, 1.0, 1.0);
glDisable(GL_TEXTURE_2D);
glPushMatrix();
glTranslatef(lightpos[0], lightpos[1], lightpos[2]);
glCallList(lightdlist);
glPopMatrix();
glPopMatrix();
glDisable(GL_DEPTH_TEST);
glDisable(GL_FOG);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glColor3f(0.0f, 0.3f, 1.0f);
if (showcheckmap) {
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, checkid);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glBegin(GL_QUADS);
glTexCoord2f(1.0f, 0.0f);
glVertex2i(10, 30);
glTexCoord2f(1.0f, 1.0f);
glVertex2i(10 + 90, 30);
glTexCoord2f(0.0f, 1.0f);
glVertex2i(10 + 90, 30 + 90);
glTexCoord2f(0.0f, 0.0f);
glVertex2i(10, 30 + 90);
glEnd();
glDisable(GL_TEXTURE_2D);
glBegin(GL_LINE_LOOP);
glVertex2i(10, 30);
glVertex2i(10 + 90, 30);
glVertex2i(10 + 90, 30 + 90);
glVertex2i(10, 30 + 90);
glEnd();
glRasterPos2i(105, 65);
printstring(GLUT_BITMAP_HELVETICA_18, "Plane Texture Map");
}
if (showreflectmap) {
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, reflectid);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glBegin(GL_QUADS);
glTexCoord2f(1.0f, 0.0f);
glVertex2i(540, 30);
glTexCoord2f(1.0f, 1.0f);
glVertex2i(540 + 90, 30);
glTexCoord2f(0.0f, 1.0f);
glVertex2i(540 + 90, 30 + 90);
glTexCoord2f(0.0f, 0.0f);
glVertex2i(540, 30 + 90);
glEnd();
glDisable(GL_TEXTURE_2D);
glBegin(GL_LINE_LOOP);
glVertex2i(540, 30);
glVertex2i(540 + 90, 30);
glVertex2i(540 + 90, 30 + 90);
glVertex2i(540, 30 + 90);
glEnd();
glRasterPos2i(360, 65);
printstring(GLUT_BITMAP_HELVETICA_18, "Sphere Texture Map");
}
glDisable(GL_TEXTURE_2D);
glRasterPos2i(10, 10);
printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
glRasterPos2i(360, 470);
printstring(GLUT_BITMAP_HELVETICA_10,
"Ray V1.0 Written by David Bucciarelli ([email protected])");
if (help)
printhelp();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
updatemaps();
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;
}
}
}
