v3f p1;
v3_muladds( w->state.drop_in_target, w->state.drop_in_normal, 0.3f, p1 );
vg_line( w->state.drop_in_target, p1, VG__GREEN );
v3f p1;
v3_muladds( w->state.drop_in_target, w->state.drop_in_normal, 0.3f, p1 );
vg_line( w->state.drop_in_target, p1, VG__GREEN );