int morphMesh(pScene sc,pMesh mesh1) {
pMesh mesh2;
pPoint ppt1,ppt2;
int k;
static float dt = 1.0 / MAX_MORPH;
imstep++;
if ( imstep == 0 ) {
imstep = 2;
dt = -dt;
if ( !imreverse ) {
glutIdleFunc(NULL);
morphing = 0;
return(0);
}
}
else if ( imstep == MAX_MORPH+1 ) {
imstep = -MAX_MORPH+1;
dt = -dt;
if ( !imreverse ) {
glutIdleFunc(NULL);
morphing = 0;
return(0);
}
}
mesh2 = cv.mesh[1];
for (k=1; k<=mesh1->np; k++) {
ppt1 = &mesh1->point[k];
ppt2 = &mesh2->point[k];
ppt1->c[0] += dt*ppt2->c[0];
ppt1->c[1] += dt*ppt2->c[1];
ppt1->c[2] += dt*ppt2->c[2];
}
doLists(sc,mesh1);
return(1);
}
/* new scene */
int createScene (pScene sc, int idmesh) {
pMesh mesh;
char data[128];
/* default */
mesh = cv.mesh[idmesh];
if (!quiet) fprintf(stdout, " Computing 3D scene\n");
/* set default mode */
sc->idmesh = idmesh;
sc->par.xi = sc->par.yi = 10;
if (option == SCHNAUZER) {
sc->par.xs = schw;
sc->par.ys = schh;
} else {
if (sc->par.xs == 0) sc->par.xs = 600;
if (sc->par.ys == 0) sc->par.ys = 600;
}
if (!sc->mode) sc->mode = HIDDEN;
sc->item = 0;
sc->shrink = 1.0;
sc->slave = sc->master = -1;
sc->picked = 0;
if (mesh->nvn == 0) sc->type ^= S_FLAT;
if (mesh->ne == 0) sc->item |= S_GEOM;
/* compute scene depth */
sc->dmax = sc->dmin = mesh->xmax - mesh->xmin;
sc->dmax = max(sc->dmax, mesh->ymax - mesh->ymin);
sc->dmin = min(sc->dmin, mesh->ymax - mesh->ymin);
if (mesh->dim == 3) {
sc->dmax = max(sc->dmax, mesh->zmax - mesh->zmin);
sc->dmin = min(sc->dmin, mesh->zmax - mesh->zmin);
}
sc->dmax = fabs(sc->dmax);
sc->dmin = fabs(sc->dmin);
if (!sc->par.sunp) {
sc->par.sunpos[0] *= 2.0 * sc->dmax;
sc->par.sunpos[1] *= 2.0 * sc->dmax;
sc->par.sunpos[2] *= 2.0 * sc->dmax;
}
sc->par.sunpos[3] = 1.0;
/* create window */
glutInitWindowSize(sc->par.xs, sc->par.ys);
sc->idwin = glutCreateWindow("");
assert(sc->idwin != 0);
if (fullscreen) {
glutFullScreen();
sc->par.xs = glutGet(GLUT_SCREEN_WIDTH);
sc->par.ys = glutGet(GLUT_SCREEN_HEIGHT);
}
/* set window name */
sprintf(data, "Medit - [%s] #%d", mesh->name, sc->idwin);
glutSetWindowTitle(data);
glutSetIconTitle(data);
/* required! to change background color */
glClearColor(sc->par.back[0], sc->par.back[1],
sc->par.back[2], sc->par.back[3]);
/* init perspective */
sc->persp = initPersp(0, sc->dmax);
sc->camera = (pCamera)initCamera(sc, Y_AXIS);
if (mesh->typ == 2) {
sc->persp->pmode = CAMERA;
sc->persp->depth *= 0.5;
}
/* create default view */
sc->view = (pTransform)createTransform();
if (!sc->view) return (0);
sc->type |= S_RESET + S_DECO;
sc->clip = (pClip)createClip(sc, mesh);
if (!sc->clip) return (0);
sc->cube = (pCube)createCube(sc, mesh);
if (!sc->cube) return (0);
/* create menus */
if (!createMenus(sc, mesh)) return (0);
/* assign callbacks */
if (sc->type & S_SCISSOR) {
glutDisplayFunc(scissorScene);
} else if (option == SCHNAUZER) {
glutDisplayFunc(redrawSchnauzer);
} else if (sc->persp->pmode == CAMERA) {
glutMouseFunc(mouseCamera);
glutMotionFunc(motionCamera);
glutDisplayFunc(redrawScene);
} else {
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(redrawScene);
}
glutReshapeFunc(reshapeScene);
glutKeyboardFunc(keyScene);
glutSpecialFunc(special);
glutAttachMenu(GLUT_RIGHT_BUTTON);
/* create display lists by geom type */
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
doLists(sc, mesh);
sc->glist = geomList(sc, mesh);
sc->type |= S_FOLLOW;
/* local stack */
if (!pilmat) {
pilmat = (int *)calloc(sc->par.nbmat + 2, sizeof(int));
if (!pilmat) return (0);
}
/* color list */
setupPalette(sc, mesh);
sc->stream = NULL;
initGrafix(sc, mesh);
return (1);
}
