65 void add_object(object *obj) {  in add_object()  argument
68     if (obj == nullptr)  in add_object()
71     obj->id = new_objectid();  in add_object()
74     rootobj = obj;  in add_object()
75     obj->nextobj = objtemp;  in add_object()
113     intstruct->list[0].obj = nullptr;  in reset_intersection()
115     intstruct->list[1].obj = nullptr;  in reset_intersection()
118 void add_intersection(flt t, object *obj, ray *ry) {  in add_intersection()  argument
133         intstruct->list[intstruct->num].obj = obj;  in add_intersection()
138 int closest_intersection(flt *t, object **obj, intersectstruct *intstruct) {  in closest_intersection()  argument
145             *obj = intstruct->list[i].obj;  in closest_intersection()
158                 (intstruct->list[i].obj->tex->shadowcast == 1)) {  in shadow_intersection()