v3_lerp( d->v_lpf, part->obj.rb.v, vg.time_frame_delta*4.0f, d->v_lpf );
v3_lerp( d->w_lpf, part->obj.rb.w, vg.time_frame_delta*4.0f, d->w_lpf );
v3_copy( d->co_lpf, player->rb.co );
v3_lerp( d->v_lpf, part->obj.rb.v, vg.time_frame_delta*4.0f, d->v_lpf );
v3_lerp( d->w_lpf, part->obj.rb.w, vg.time_frame_delta*4.0f, d->w_lpf );
v3_copy( d->co_lpf, player->rb.co );