3D Audio

chrystianfarias · Jan 19, 2022 · 90efd1e · 90efd1e
1 parent 4b1d453
commit 90efd1e
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Showing 3 changed files with 40 additions and 9 deletions.
diff --git a/GTAFmod/FMODAudio.cpp b/GTAFmod/FMODAudio.cpp
@@ -38,14 +38,16 @@ void FMODAudio::LoadBank(FMOD::Studio::System* fmodSystem, char* bank, char* abs
 
     //Set 3D space
     m_RpmEventInstance->setVolume(.4);
+    m_RpmEventInstance->setReverbLevel(0, 2);
     m_RpmEventInstance->set3DAttributes(&m_Attributes);
     m_RpmEventInstance->setParameterByID(m_RpmDesc.id, 0.0f);
     m_RpmEventInstance->setParameterByID(m_LoadDesc.id, 1.0f);
 
-    m_Attributes = { { 0 } };
-    m_Attributes.forward.z = 1.0f;
-    m_Attributes.up.y = 1.0f;
-    CheckError(fmodSystem->setListenerAttributes(0, &m_Attributes), "Failed on set 3d ambient");
+    m_ListenerAttributes = { { 0 } };
+    m_ListenerAttributes.forward.x = 1.0f;
+    m_ListenerAttributes.up.z = 1.0f;
+
+    CheckError(fmodSystem->setListenerAttributes(0, &m_ListenerAttributes), "Failed on set 3d ambient");
 
     m_bIsLoaded = true;
 }
diff --git a/GTAFmod/FMODAudio.h b/GTAFmod/FMODAudio.h
@@ -15,7 +15,8 @@ class FMODAudio
 	FMOD::Studio::EventInstance* m_GearEventInstance;
 	FMOD_STUDIO_PARAMETER_DESCRIPTION m_RpmDesc;
 	FMOD_STUDIO_PARAMETER_DESCRIPTION m_LoadDesc;
-	FMOD_3D_ATTRIBUTES m_Attributes;
+    FMOD_3D_ATTRIBUTES m_Attributes;
+    FMOD_3D_ATTRIBUTES m_ListenerAttributes;
 
     void LoadBank(FMOD::Studio::System* fmodSystem, char* bank, char* absolutePath);
 

diff --git a/GTAFmod/GTAFmod.cpp b/GTAFmod/GTAFmod.cpp
@@ -7,6 +7,7 @@
 #include "fmod_studio.hpp"
 #include "fmod_errors.h"
 #include "Curve.h"
+#include "CModelInfo.h"
 
 #include <stdio.h>
 #include <string>
@@ -245,14 +246,41 @@ class GTAFmod {
                 //Set 3D space position
                 CVector camPos = TheCamera.GetPosition();
                 CVector vehiclePos = vehicle->GetPosition();
-
-                audio->m_Attributes.position.x = vehiclePos.x - camPos.x;
-                audio->m_Attributes.position.y = vehiclePos.y - camPos.y;
-                audio->m_Attributes.position.z = vehiclePos.z - camPos.z;
+                CVector pos = vehiclePos - camPos;
+                CVector dirFor;
+                CVector dirUp;
+                CVector offsetFor = CVector(0, -1, 0);
+                CVector offsetUp = CVector(0, 0, 1);
+                CMatrix* matrix = vehicle->m_matrix;
+                RwV3dTransformPoint((RwV3d*)&dirFor, (RwV3d*)&offsetFor, (RwMatrix*)matrix);
+                RwV3dTransformPoint((RwV3d*)&dirUp, (RwV3d*)&offsetUp, (RwMatrix*)matrix);
+
+                audio->m_Attributes.position.x = vehiclePos.x;
+                audio->m_Attributes.position.y = vehiclePos.y;
+                audio->m_Attributes.position.z = vehiclePos.z;
+                audio->m_Attributes.velocity.x = vehicle->m_vecMoveSpeed.x;
+                audio->m_Attributes.velocity.y = vehicle->m_vecMoveSpeed.y;
+                audio->m_Attributes.velocity.z = vehicle->m_vecMoveSpeed.z;
+
+                audio->m_Attributes.forward.x = dirFor.x - vehiclePos.x;
+                audio->m_Attributes.forward.y = dirFor.y - vehiclePos.y;
+                audio->m_Attributes.forward.z = dirFor.z - vehiclePos.z;
+                audio->m_Attributes.up.x = dirUp.x - vehiclePos.x;
+                audio->m_Attributes.up.y = dirUp.y - vehiclePos.y;
+                audio->m_Attributes.up.z = dirUp.z - vehiclePos.z;
+
                 audio->m_RpmEventInstance->set3DAttributes(&audio->m_Attributes);
                 audio->m_BackFireEventInstance->set3DAttributes(&audio->m_Attributes);
                 audio->m_GearEventInstance->set3DAttributes(&audio->m_Attributes);
 
+                audio->m_ListenerAttributes.position.x = camPos.x;
+                audio->m_ListenerAttributes.position.y = camPos.y;
+                audio->m_ListenerAttributes.position.z = camPos.z;
+                audio->m_ListenerAttributes.forward = audio->m_Attributes.forward;
+                audio->m_ListenerAttributes.up = audio->m_Attributes.up;
+
+                fmodSystem->setListenerAttributes(0, &audio->m_ListenerAttributes);
+
                 //Get gas pedal
                 float gasPedal = abs(vehicle->m_fGasPedal);