object * newgrid(int xsize, int ysize, int zsize, vector min, vector max) {
grid * g;
g = (grid *) rt_getmem(sizeof(grid));
memset(g, 0, sizeof(grid));
g->methods = &grid_methods;
g->id = new_objectid();
g->xsize = xsize;
g->ysize = ysize;
g->zsize = zsize;
g->min = min;
g->max = max;
VSub(&g->max, &g->min, &g->voxsize);
g->voxsize.x /= (flt) g->xsize;
g->voxsize.y /= (flt) g->ysize;
g->voxsize.z /= (flt) g->zsize;
g->cells = (objectlist **) rt_getmem(xsize*ysize*zsize*sizeof(objectlist *));
memset(g->cells, 0, xsize*ysize*zsize * sizeof(objectlist *));
/* fprintf(stderr, "New grid, size: %8d %8d %8d\n", g->xsize, g->ysize, g->zsize); */
return (object *) g;
}
void add_object(object * obj) {
object * objtemp;
if (obj == NULL)
return;
obj->id = new_objectid();
objtemp = rootobj;
rootobj = obj;
obj->nextobj = objtemp;
}
static void add_unbounded_object(scenedef * scene, object * obj) {
object * objtemp;
if (obj == NULL)
return;
obj->id = new_objectid(scene);
objtemp = scene->objgroup.unboundedobj;
scene->objgroup.unboundedobj = obj;
obj->nextobj = objtemp;
obj->clip = scene->curclipgroup;
scene->scenecheck = 1;
}
static void add_bounded_object(scenedef * scene, object * obj) {
object * objtemp;
if (obj == NULL)
return;
obj->id = new_objectid(scene);
objtemp = scene->objgroup.boundedobj;
scene->objgroup.boundedobj = obj;
obj->nextobj = objtemp;
obj->clip = scene->curclipgroup;
/* XXX Clipping ought to be applied to objects before they */
/* are even added to the internal data structures, so */
/* they aren't even considered during rendering. */
scene->scenecheck = 1;
}
