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cache audio listener position

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milek7
2020-11-19 17:02:34 +01:00
parent 21ef95a0a8
commit c3b596ed29
2 changed files with 5 additions and 8 deletions
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10
audiorenderer.cpp
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@@ -127,12 +127,8 @@ openal_source::sync_with( sound_properties const &State ) {
// NOTE: velocity at this point can be either listener velocity for global sounds, actual sound velocity, or 0 if sound position is yet unknown
::alSourcefv( id, AL_VELOCITY, glm::value_ptr( sound_velocity ) );
glm::dmat4 cameramatrix;
Global.pCamera.SetMatrix( cameramatrix );
auto cameraposition = Global.pCamera.Pos + (Global.viewport_move * glm::mat3(cameramatrix));
// location
sound_distance = State.location - glm::dvec3 { cameraposition };
sound_distance = State.location - renderer.cached_camerapos;
if( sound_range != -1 ) {
// range cutoff check for songs other than 'unlimited'
// NOTE: since we're comparing squared distances we can ignore that sound range can be negative
@@ -377,8 +373,8 @@ openal_renderer::update( double const Deltatime ) {
::alListenerfv( AL_ORIENTATION, reinterpret_cast<ALfloat const *>( orientation ) );
// velocity
if( Deltatime > 0 ) {
auto cameramove { glm::dvec3{ cameraposition - m_camerapos} };
m_camerapos = cameraposition;
auto cameramove { glm::dvec3{ cameraposition - cached_camerapos} };
cached_camerapos = cameraposition;
// intercept sudden user-induced camera jumps...
// ...from free fly mode change
if( m_freeflymode != FreeFlyModeFlag ) {