push one polygon on the polygonstack of the object. it takes 3 vertex-index- numbers and one material material-index-nr. as argument.
int oid=s3d_new_object(); /* create a new object */ s3d_push_vertex(oid,0.0,0.0,0.0); s3d_push_vertex(oid,0.0,1.0,0.0); s3d_push_vertex(oid,1.0,0.0,0.0); s3d_push_material(oid,0.3,0.0,0.0, 1.0,1.0,1.0, 1.0,0.0,0.0); s3d_push_polygon(oid,0,1,2,0); /* this will create a red polygon */