if( gate_intersect( gate, co1, co0 ) ){
m4x3_mulv( gate->transport, co0, co0 );
m4x3_mulv( gate->transport, co1, co1 );
m3x3_mulv( gate->transport, launch_v, launch_v);
m4x3_mulv( gate->transport, launch_co, launch_co );
m3x3_mul( gate->transport, basis, basis );
if( gate_intersect( gate, co1, co0 ) ){
m4x3_mulv( gate->transport, co0, co0 );
m4x3_mulv( gate->transport, co1, co1 );
m3x3_mulv( gate->transport, launch_v, launch_v);
m4x3_mulv( gate->transport, launch_co, launch_co );
m3x3_mul( gate->transport, basis, basis );