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189
SimpleGame/FMOD/api/studio/examples/objectpan.cpp
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189
SimpleGame/FMOD/api/studio/examples/objectpan.cpp
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/*==============================================================================
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Object Panning Example
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Copyright (c), Firelight Technologies Pty, Ltd 2015-2025.
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This example demonstrates the FMOD object panner. The usage is completely
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transparent to the API, the only difference is how the event is authored in the
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FMOD Studio tool.
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To hear the difference between object panning and normal panning this example
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has two events (one configured with the normal panner, and one with the object
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panner). As they move around the listener you may toggle between panning method
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and two different sounds.
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Object panning requires compatible hardware such as a Dolby Atmos amplifier or
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a Playstation VR headset. For cases when the necessary hardware is not available
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FMOD will fallback to standard 3D panning.
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For information on using FMOD example code in your own programs, visit
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https://www.fmod.com/legal
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==============================================================================*/
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#include "fmod_studio.hpp"
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#include "fmod.hpp"
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#include "common.h"
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#include <math.h>
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int FMOD_Main()
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{
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bool isOnGround = false;
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bool useListenerAttenuationPosition = false;
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void *extraDriverData = NULL;
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Common_Init(&extraDriverData);
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FMOD::Studio::System *system = NULL;
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ERRCHECK( FMOD::Studio::System::create(&system) );
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// The example Studio project is authored for 5.1 sound, so set up the system output mode to match
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FMOD::System* coreSystem = NULL;
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ERRCHECK( system->getCoreSystem(&coreSystem) );
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ERRCHECK( coreSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_5POINT1, 0) );
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// Attempt to initialize with a compatible object panning output
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FMOD_RESULT result = coreSystem->setOutput(FMOD_OUTPUTTYPE_AUDIO3D);
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if (result != FMOD_OK)
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{
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result = coreSystem->setOutput(FMOD_OUTPUTTYPE_WINSONIC);
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if (result == FMOD_OK)
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{
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ERRCHECK( coreSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_7POINT1POINT4, 0) );
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}
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else
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{
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result = coreSystem->setOutput(FMOD_OUTPUTTYPE_PHASE);
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if (result == FMOD_OK)
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{
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ERRCHECK( coreSystem->setSoftwareFormat(0, FMOD_SPEAKERMODE_7POINT1POINT4, 0) );
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}
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}
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}
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int numDrivers = 0;
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ERRCHECK( coreSystem->getNumDrivers(&numDrivers) );
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if (numDrivers == 0)
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{
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ERRCHECK( coreSystem->setDSPBufferSize(512, 4) );
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ERRCHECK( coreSystem->setOutput(FMOD_OUTPUTTYPE_AUTODETECT) );
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}
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// Due to a bug in WinSonic on Windows, FMOD initialization may fail on some machines.
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// If you get the error "FMOD error 51 - Error initializing output device", try using
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// a different output type such as FMOD_OUTPUTTYPE_AUTODETECT
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ERRCHECK( system->initialize(1024, FMOD_STUDIO_INIT_NORMAL, FMOD_INIT_NORMAL, extraDriverData) );
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// Load everything needed for playback
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FMOD::Studio::Bank *masterBank = NULL;
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FMOD::Studio::Bank *musicBank = NULL;
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FMOD::Studio::Bank *stringsBank = NULL;
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FMOD::Studio::EventDescription *spatializerDescription = NULL;
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FMOD::Studio::EventInstance *spatializerInstance = NULL;
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float spatializer;
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float radioFrequency;
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ERRCHECK( system->loadBankFile(Common_MediaPath("Master.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &masterBank) );
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ERRCHECK( system->loadBankFile(Common_MediaPath("Music.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &musicBank) );
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ERRCHECK( system->loadBankFile(Common_MediaPath("Master.strings.bank"), FMOD_STUDIO_LOAD_BANK_NORMAL, &stringsBank) );
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ERRCHECK( system->getEvent("event:/Music/Radio Station", &spatializerDescription) );
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ERRCHECK( spatializerDescription->createInstance(&spatializerInstance) );
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ERRCHECK( spatializerInstance->start() );
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do
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{
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Common_Update();
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ERRCHECK(spatializerInstance->getParameterByName("Freq", NULL, &radioFrequency));
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ERRCHECK(spatializerInstance->getParameterByName("Spatializer", NULL, &spatializer));
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if (Common_BtnPress(BTN_ACTION1))
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{
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if (radioFrequency == 3.00f)
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{
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ERRCHECK(spatializerInstance->setParameterByName("Freq", 0.00f));
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}
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else
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{
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ERRCHECK(spatializerInstance->setParameterByName("Freq", (radioFrequency + 1.50f)));
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}
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}
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if (Common_BtnPress(BTN_ACTION2))
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{
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if (spatializer == 1.00)
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{
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ERRCHECK(spatializerInstance->setParameterByName("Spatializer", 0.00f));
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}
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else
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{
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ERRCHECK(spatializerInstance->setParameterByName("Spatializer", 1.00f));
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}
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}
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if (Common_BtnPress(BTN_ACTION3))
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{
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isOnGround = !isOnGround;
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}
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if (Common_BtnPress(BTN_ACTION4))
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{
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useListenerAttenuationPosition = !useListenerAttenuationPosition;
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}
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FMOD_3D_ATTRIBUTES vec = { };
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vec.forward.z = 1.0f;
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vec.up.y = 1.0f;
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static float t = 0;
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vec.position.x = sinf(t) * 3.0f; /* Rotate sound in a circle */
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vec.position.z = cosf(t) * 3.0f; /* Rotate sound in a circle */
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t += 0.03f;
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if (isOnGround)
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{
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vec.position.y = 0; /* At ground level */
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}
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else
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{
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vec.position.y = 5.0f; /* Up high */
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}
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ERRCHECK( spatializerInstance->set3DAttributes(&vec) );
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FMOD_3D_ATTRIBUTES listener_vec = { };
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listener_vec.forward.z = 1.0f;
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listener_vec.up.y = 1.0f;
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FMOD_VECTOR listener_attenuationPos = vec.position;
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listener_attenuationPos.z -= -10.0f;
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ERRCHECK( system->setListenerAttributes(0, &listener_vec, useListenerAttenuationPosition ? &listener_attenuationPos : nullptr) );
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ERRCHECK( system->update() );
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const char *radioString = (radioFrequency == 0.00f) ? "Rock" : (radioFrequency == 1.50f) ? "Lo-fi" : "Hip hop";
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const char *spatialString = (spatializer == 0.00f) ? "Standard 3D Spatializer" : "Object Spatializer";
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Common_Draw("==================================================");
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Common_Draw("Object Panning Example.");
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Common_Draw("Copyright (c) Firelight Technologies 2015-2025.");
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Common_Draw("==================================================");
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Common_Draw("");
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Common_Draw("Playing %s with the %s.", radioString, spatialString);
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Common_Draw("Radio is %s.", isOnGround ? "on the ground" : "up in the air");
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Common_Draw("");
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Common_Draw("Press %s to switch stations.", Common_BtnStr(BTN_ACTION1));
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Common_Draw("Press %s to switch spatializer.", Common_BtnStr(BTN_ACTION2));
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Common_Draw("Press %s to elevate the event instance.", Common_BtnStr(BTN_ACTION3));
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Common_Draw("Press %s to %s use of attenuation position.", Common_BtnStr(BTN_ACTION4), useListenerAttenuationPosition ? "disable" : "enable");
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Common_Draw("");
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Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
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Common_Sleep(50);
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} while (!Common_BtnPress(BTN_QUIT));
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ERRCHECK( stringsBank->unload() );
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ERRCHECK( musicBank->unload() );
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ERRCHECK( system->release() );
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Common_Close();
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return 0;
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}
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