SGCloudLayer::enable_bump_mapping = fgGetBool("/sim/rendering/bump-mapping");
- bool scenery_loaded = fgGetBool("sim/sceneryloaded") || fgGetBool("sim/sceneryloaded-override");
+ bool scenery_loaded = fgGetBool("sim/sceneryloaded");
+ bool wait_for_scenery = !(scenery_loaded || fgGetBool("sim/sceneryloaded-override"));
// Update the elapsed time.
static bool first_time = true;
}
double throttle_hz = fgGetDouble("/sim/frame-rate-throttle-hz", 0.0);
- if ( throttle_hz > 0.0 && scenery_loaded ) {
+ if ( throttle_hz > 0.0 && !wait_for_scenery ) {
// optionally throttle the frame rate (to get consistent frame
// rates or reduce cpu usage.
}
- if (clock_freeze->getBoolValue() || !scenery_loaded) {
+ if (clock_freeze->getBoolValue() || wait_for_scenery) {
delta_time_sec = 0;
} else {
delta_time_sec = real_delta_time_sec;
#ifdef ENABLE_AUDIO_SUPPORT
// Right now we make a simplifying assumption that the primary
// aircraft is the source of all sounds and that all sounds are
- // positioned relative to the current view position.
-
- static sgVec3 last_pos_offset;
+ // positioned in the aircraft base
+
+ static sgdVec3 last_visitor_pos = {0, 0, 0};
+ static sgdVec3 last_model_pos = {0, 0, 0};
+
+ // get the orientation
+ const SGQuatd view_or = current_view->getViewOrientation();
+ SGQuatd surf_or = SGQuatd::fromLonLatDeg(
+ current_view->getLongitude_deg(), current_view->getLatitude_deg());
+ SGQuatd model_or = SGQuatd::fromYawPitchRollDeg(
+ globals->get_aircraft_model()->get3DModel()->getHeadingDeg(),
+ globals->get_aircraft_model()->get3DModel()->getPitchDeg(),
+ globals->get_aircraft_model()->get3DModel()->getRollDeg());
+
+ // get the up and at vector in the aircraft base
+ // (ok, the up vector is a down vector, but the coordinates
+ // are finally calculated in a left hand system and openal
+ // lives in a right hand system. Therefore we need to pass
+ // the down vector to get correct stereo sound.)
+ SGVec3d sgv_up = model_or.rotateBack(
+ surf_or.rotateBack(view_or.rotate(SGVec3d(0, 1, 0))));
+ sgVec3 up;
+ sgSetVec3(up, sgv_up[0], sgv_up[1], sgv_up[2]);
+ SGVec3d sgv_at = model_or.rotateBack(
+ surf_or.rotateBack(view_or.rotate(SGVec3d(0, 0, 1))));
+ sgVec3 at;
+ sgSetVec3(at, sgv_at[0], sgv_at[1], sgv_at[2]);
// get the location data for the primary FDM (now hardcoded to ac model)...
SGLocation *acmodel_loc = NULL;
acmodel_loc = (SGLocation *)globals->
get_aircraft_model()->get3DModel()->getSGLocation();
+ // calculate speed of visitor and model
+ sgVec3 listener_vel, model_vel;
+ SGVec3d SGV3d_help;
+ sgdVec3 sgdv3_help;
+ sgdVec3 sgdv3_null = {0, 0, 0};
+
+ sgdSubVec3( sgdv3_help,
+ last_visitor_pos, (double *)¤t_view->get_view_pos());
+ sgdAddVec3( last_visitor_pos, sgdv3_null, (double *)¤t_view->get_view_pos());
+ SGV3d_help = model_or.rotateBack(
+ surf_or.rotateBack(SGVec3d(sgdv3_help[0],
+ sgdv3_help[1], sgdv3_help[2])));
+ sgSetVec3( listener_vel, SGV3d_help[0], SGV3d_help[1], SGV3d_help[2]);
+
+ sgdSubVec3( sgdv3_help,
+ last_model_pos, acmodel_loc->get_absolute_view_pos());
+ sgdAddVec3( last_model_pos, sgdv3_null, acmodel_loc->get_absolute_view_pos());
+ SGV3d_help = model_or.rotateBack(
+ surf_or.rotateBack(SGVec3d(sgdv3_help[0],
+ sgdv3_help[1], sgdv3_help[2])));
+ sgSetVec3( model_vel, SGV3d_help[0], SGV3d_help[1], SGV3d_help[2]);
+
+ if (delta_time_sec > 0) {
+ sgScaleVec3( model_vel, 1 / delta_time_sec );
+ sgScaleVec3( listener_vel, 1 / delta_time_sec );
+ }
+
+ // checking, if the listener pos has moved suddenly
+ if (sgLengthVec3(listener_vel) > 1000)
+ {
+ // check if the relative speed model vs listener has moved suddenly, too
+ sgVec3 delta_vel;
+ sgSubVec3(delta_vel, listener_vel, model_vel );
+ if (sgLengthVec3(delta_vel) > 1000)
+ sgSetVec3(listener_vel, model_vel[0], model_vel[1], model_vel[2] ); // a sane value
+ else
+ globals->get_soundmgr()->set_listener_vel( listener_vel );
+ }
+ else
+ globals->get_soundmgr()->set_listener_vel( listener_vel );
+
// set positional offset for sources
sgdVec3 dsource_pos_offset;
sgdSubVec3( dsource_pos_offset,
- view_location->get_absolute_view_pos(),
+ (double*) ¤t_view->get_view_pos(),
acmodel_loc->get_absolute_view_pos() );
- // cout << "pos all = " << source_pos_offset[0] << " " << source_pos_offset[1] << " " << source_pos_offset[2] << endl;
+ SGVec3d sgv_dsource_pos_offset = model_or.rotateBack(
+ surf_or.rotateBack(SGVec3d(dsource_pos_offset[0],
+ dsource_pos_offset[1], dsource_pos_offset[2])));
+
sgVec3 source_pos_offset;
- sgSetVec3(source_pos_offset, dsource_pos_offset);
+ sgSetVec3(source_pos_offset, sgv_dsource_pos_offset[0],
+ sgv_dsource_pos_offset[1], sgv_dsource_pos_offset[2]);
+
globals->get_soundmgr()->set_source_pos_all( source_pos_offset );
+ float orient[6];
+ for (int i = 0; i < 3; i++) {
+ orient[i] = sgv_at[i];
+ orient[i + 3] = sgv_up[i];
+ }
+ globals->get_soundmgr()->set_listener_orientation( orient );
+
// set the velocity
- sgVec3 source_vel;
- sgSubVec3( source_vel, source_pos_offset, last_pos_offset );
- sgScaleVec3( source_vel, delta_time_sec );
- sgCopyVec3( last_pos_offset, source_pos_offset );
- // cout << "vel = " << source_vel[0] << " " << source_vel[1] << " " << source_vel[2] << endl;
- globals->get_soundmgr()->set_source_vel_all( source_vel );
-
- // Right now we make a simplifying assumption that the listener is
- // always positioned at the origin.
+ // all sources are defined to be in the model
+ globals->get_soundmgr()->set_source_vel_all( model_vel );
+
+ // The listener is always positioned at the origin.
sgVec3 listener_pos;
sgSetVec3( listener_pos, 0.0, 0.0, 0.0 );
- // cout << "listener = " << listener_pos[0] << " " << listener_pos[1] << " " << listener_pos[2] << endl;
globals->get_soundmgr()->set_listener_pos( listener_pos );
#endif
// then on.
static void fgIdleFunction ( void ) {
+ // Some intialization requires a valid graphics context, in
+ // particular that of plib. Boo, hiss!
+ fgMakeCurrent();
if ( idle_state == 0 ) {
idle_state++;
fgInitFGRoot(argc, argv);
// Check for the correct base package version
- static char required_version[] = "0.9.10";
+ static char required_version[] = "0.9.11";
string base_version = fgBasePackageVersion();
if ( !(base_version == required_version) ) {
// tell the operator how to use this application