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Wwise SDK 2019.2.15
AkSpatialAudio.h
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3 released in source code form as part of the SDK installer package.
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14 Alternatively, this file may be used under the Apache License, Version 2.0 (the
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24 Version: <VERSION> Build: <BUILDNUMBER>
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27 
28 /// \file
29 /// Spatial Audio interface.
30 
31 #pragma once
32 
33 #include <AK/SpatialAudio/Common/AkSpatialAudioTypes.h>
34 #include <AK/Plugin/AkReflectGameData.h>
35 #include <AK/SoundEngine/Common/AkSoundEngine.h>
36 
37 template<AkUInt32 TSize>
38 struct AkGrowByPolicy_Legacy_SpatialAudio
39 {
40  static AkUInt32 GrowBy(AkUInt32 /*in_CurrentArraySize*/) { return TSize; }
41 };
42 
43 /// AkDiffractionFlags determine if diffraction values for sound passing through portals will be calculated, and how to apply those calculations to Wwise parameters.
44 enum AkDiffractionFlags
45 {
46  DiffractionFlags_UseBuiltInParam = 1 << 0, ///< Set the Wwise built-in game parameter value for diffraction angle. This is a flexible approach that can be mapped to any Wwise parameter. Can also be used simply to monitor diffraction using the game object profiler in Wwise.
47  DiffractionFlags_UseObstruction = 1 << 1, ///< Use Wwise obstruction for dry-path diffraction. Dry-path diffraction is related to the angle off of a straight line of sight to a sound emitter.
48  DiffractionFlags_CalcEmitterVirtualPosition = 1 << 3, ///< An emitter that is not in the same room as the listener will have its apparent or virtual position calculated by Wwise spatial audio and passed on to the sound engine.
49 
50  DefaultDiffractionFlags = DiffractionFlags_UseBuiltInParam | DiffractionFlags_UseObstruction | DiffractionFlags_CalcEmitterVirtualPosition
51 };
52 
53 /// Initialization settings of the spatial audio module.
54 struct AkSpatialAudioInitSettings
55 {
56  AkSpatialAudioInitSettings()
57  : uMaxSoundPropagationDepth(AK_MAX_SOUND_PROPAGATION_DEPTH)
58  , uDiffractionFlags((AkUInt32)DefaultDiffractionFlags)
59  , fDiffractionShadowAttenFactor(AK_DEFAULT_DIFFR_SHADOW_ATTEN)
60  , fDiffractionShadowDegrees(AK_DEFAULT_DIFFR_SHADOW_DEGREES)
61  , fMovementThreshold(AK_DEFAULT_MOVEMENT_THRESHOLD)
62  , uNumberOfPrimaryRays(100)
63  , uMaxReflectionOrder(1)
64  , fMaxPathLength(10000.0f)
65  , bEnableDiffractionOnReflection(true)
66  , bEnableDirectPathDiffraction(true)
67  , bEnableTransmission(true)
68  {}
69 
70  AkUInt32 uMaxSoundPropagationDepth; ///< Maximum number of portals that sound can propagate through; must be less than or equal to AK_MAX_SOUND_PROPAGATION_DEPTH.
71  AkUInt32 uDiffractionFlags; ///< Enable or disable specific diffraction features. See AkDiffractionFlags.
72  AkReal32 fDiffractionShadowAttenFactor; ///< Multiplier that is applied to the distance attenuation of diffracted sounds (sounds that are in the 'shadow region') to simulate the phenomenon where by diffracted sound waves decay faster than incident sound waves.
73  AkReal32 fDiffractionShadowDegrees; ///< Interpolation angle, in degrees, over which the fDiffractionShadowAttenFactor is applied.
74  ///< At a diffraction of 0, a multiplier of 1 (ie. none) is applied, and at an angle of fDiffractionShadowDegrees or greater, fDiffractionShadowAttenFactor is applied.
75  ///< A linear interpolation between 1 and fDiffractionShadowAttenFactor is applied when the angle is between 0 and fDiffractionShadowDegrees.
76 
77  AkReal32 fMovementThreshold; ///< Amount that an emitter or listener has to move to trigger a recalculation of reflections/diffraction. Larger values can reduce the CPU load at the cost of reduced accuracy.
78 
79  AkUInt32 uNumberOfPrimaryRays; ///< The number of primary rays used in stochastic ray casting
80  AkUInt32 uMaxReflectionOrder; ///< Maximum reflection order [1, 4] - the number of 'bounces' in a reflection path. A higher reflection order renders more details at the expense of higher CPU usage.
81  AkReal32 fMaxPathLength; ///< The length of rays that are cast inside Spatial Audio. This effectively caps the maximum length of individual segments in reflection or diffraction paths.
82  ///< Each individual sound is also affected by its maximum attenuation distance, specified in the Authoring tool. Reflection or diffraction paths, calculated inside Spatial Audio, will never exceed a sound's maximum attenuation distance.
83  ///< Note, however, that attenuation is considered infinite if the furthest point is above the audibility threshold.
84  bool bEnableDiffractionOnReflection; ///< Enable diffraction at the end/beginning of reflection paths. Diffraction on reflection causes reflections to fade in and out smoothly as the listener or emitter move in and out of the reflection's shadow zone.
85  bool bEnableDirectPathDiffraction; ///< Enable computation of geometric direct path diffraction for all sources that have diffraction enabled in the positioning tab of the authoring tab.
86  ///< This flag enables sounds to diffract around geometry (see \c AK::SpatialAudio::SetGeometry) that have diffraction edges.
87  ///< Diffraction edges must be enabled for sounds to diffract around geometry (see \c AkGeometryParams).
88  ///< If \c bEnableDirectPathDiffraction is false but a sound has "Enable Diffraction" ticked in the positioning tab of the authoring tool, the sound will only diffract through portals but pass through geometry as if it is not there.
89  bool bEnableTransmission; ///< Enable modeling of transmission of sound through walls.
90 };
91 
92 // Settings for individual image sources.
93 struct AkImageSourceSettings
94 {
95  AkImageSourceSettings() {}
96 
97  AkImageSourceSettings(AkVector in_sourcePosition, AkReal32 in_fDistanceScalingFactor, AkReal32 in_fLevel)
98  : params(in_sourcePosition, in_fDistanceScalingFactor, in_fLevel)
99  , texture()
100  , name()
101  {
102  }
103 
104  ~AkImageSourceSettings()
105  {
106  name.Term();
107  }
108 
109  /// Operator =
110  AkImageSourceSettings& operator =(const AkImageSourceSettings & src)
111  {
112  params = src.params;
113  texture = src.texture;
114  name = src.name;
115  name.AllocCopy();
116  return *this;
117  }
118 
119  void SetOneTexture(AkUniqueID in_texture)
120  {
121  texture.uNumTexture = 1;
122  texture.arTextureID[0] = in_texture;
123  }
124 
125  void SetName(const char* in_pName)
126  {
127  name = in_pName;
128  name.AllocCopy();
129  }
130 
131  /// Image source parameters.
132  AkImageSourceParams params;
133 
134  /// Acoustic texture that goes with this image source.
135  AkImageSourceTexture texture;
136 
137  /// Name given to image source, can be used to identify the image source in the AK Reflect plugin UI.
138  AK::SpatialAudio::String name;
139 };
140 
141 /// Vertex for a spatial audio mesh.
142 struct AkVertex
143 {
144  /// Constructor
145  AkVertex() : X(0.f), Y(0.f), Z(0.f) {}
146 
147  /// Constructor
148  AkVertex(AkReal32 in_X, AkReal32 in_Y, AkReal32 in_Z) : X(in_X), Y(in_Y), Z(in_Z) {}
149 
150  AkReal32 X; ///< X coordinate
151  AkReal32 Y; ///< Y coordinate
152  AkReal32 Z; ///< Z coordinate
153 };
154 
155 /// Triangle for a spatial audio mesh.
156 struct AkTriangle
157 {
158  /// Constructor
159  AkTriangle() : point0(AK_INVALID_VERTEX)
160  , point1(AK_INVALID_VERTEX)
161  , point2(AK_INVALID_VERTEX)
162  , surface(AK_INVALID_SURFACE)
163  {}
164 
165  /// Constructor
166  AkTriangle(AkVertIdx in_pt0, AkVertIdx in_pt1, AkVertIdx in_pt2, AkSurfIdx in_surfaceInfo)
167  : point0(in_pt0)
168  , point1(in_pt1)
169  , point2(in_pt2)
170  , surface(in_surfaceInfo)
171  {}
172 
173  /// Index into the vertex table passed into \c AkGeometryParams that describes the first vertex of the triangle. Triangles are double-sided, so vertex order in not important.
174  AkVertIdx point0;
175 
176  /// Index into the vertex table passed into \c AkGeometryParams that describes the second vertex of the triangle. Triangles are double-sided, so vertex order in not important.
177  AkVertIdx point1;
178 
179  /// Index into the vertex table passed into \c AkGeometryParams that describes the third vertex of the triangle. Triangles are double-sided, so vertex order in not important.
180  AkVertIdx point2;
181 
182  /// Index into the surface table passed into \c AkGeometryParams that describes the surface properties of the triangle.
183  /// If this field is left as \c AK_INVALID_SURFACE, then a default-constructed \c AkAcousticSurface is used.
184  AkSurfIdx surface;
185 };
186 
187 /// Describes the acoustic surface properties of one or more triangles.
188 /// An single acoustic surface may describe any number of triangles, depending on the granularity desired. For example, if desired for debugging, one could create a unique
189 /// \c AkAcousticSurface struct for each triangle, and define a unique name for each. Alternatively, a single \c AkAcousticSurface could be used to describe all triangles.
190 /// In fact it is not necessary to define any acoustic surfaces at all. If the \c AkTriangle::surface field is left as \c AK_INVALID_SURFACE, then a default-constructed \c AkAcousticSurface is used.
191 struct AkAcousticSurface
192 {
193  /// Constructor
194  AkAcousticSurface(): textureID(AK_INVALID_UNIQUE_ID)
195  , occlusion(1.0f)
196  , strName(NULL)
197  {}
198 
199  /// Acoustic texture ShareSet ID for the surface. The acoustic texture is authored in Wwise, and the shareset ID may be obtained by calling \c AK::SoundEngine::GetIDFromString
200  /// \sa <tt>\ref AK::SoundEngine::GetIDFromString()</tt>
201  AkUInt32 textureID;
202 
203  /// Occlusion value to set when modeling sound transmission through geometry. Transmission is modeled only when the sound emitted enables diffraction and there is no direct line of sight from the emitter to the listener.
204  /// If more that one surface is between the emitter and the listener, the maximum of each surface's occlusion value is used. If the emitter and listener are in different rooms, then the rooms' WallOcclusion is taken into account.
205  /// The maximum of all the surfaces' occlusion value, and the WallOcclusion value (see \c AkRoomParams) is used to render the transmission path.
206  /// Valid range: (0.f-1.f)
207  /// - \ref AkRoomParams
208  AkReal32 occlusion;
209 
210  /// Name to describe this surface
211  const char* strName;
212 };
213 
214 /// Structure for retrieving information about the indirect paths of a sound that have been calculated via the geometric reflections API. Useful for debug draw applications.
215 struct AkReflectionPathInfo
216 {
217  /// Apparent source of the reflected sound that follows this path.
218  AkVector imageSource;
219 
220  /// Vertices of the indirect path.
221  /// pathPoint[0] is closest to the emitter, pathPoint[numPathPoints-1] is closest to the listener.
222  AkVector pathPoint[AK_MAX_REFLECTION_PATH_LENGTH];
223 
224  /// The surfaces that were hit in the path.
225  /// surfaces[0] is closest to the emitter, surfaces[numPathPoints-1] is closest to the listener.
226  AkAcousticSurface surfaces[AK_MAX_REFLECTION_PATH_LENGTH];
227 
228  /// Number of valid elements in the \c pathPoint[], \c surfaces[], and \c diffraction[] arrays.
229  AkUInt32 numPathPoints;
230 
231  /// Number of reflections in the \c pathPoint[] array. Shadow zone diffraction does not count as a reflection. If there is no shadow zone diffraction, \c numReflections is equal to \c numPathPoints.
232  AkUInt32 numReflections;
233 
234  /// Diffraction amount, normalized to the range [0,1]
235  AkReal32 diffraction[AK_MAX_REFLECTION_PATH_LENGTH];
236 
237  /// Linear gain applied to image source.
238  AkReal32 level;
239 
240  /// True if the sound path was occluded. Note that the spatial audio library must be recompiled with \c \#define AK_DEBUG_OCCLUSION to enable generation of occluded paths.
241  bool isOccluded;
242 };
243 
244 /// Structure for retrieving information about diffraction paths for a given emitter.
245 /// The diffraction paths represent indirect sound paths from the emitter to the listener, whether they go through portals
246 /// (via the rooms and portals API) or are diffracted around edges (via the geometric diffraction API).
247 struct AkDiffractionPathInfo
248 {
249  /// Defines the maximum number of nodes that a user can retrieve information about. Longer paths will be truncated.
250  static const AkUInt32 kMaxNodes = AK_MAX_SOUND_PROPAGATION_DEPTH;
251 
252  /// Diffraction points along the path. nodes[0] is the point closest to the listener; nodes[numNodes-1] is the point closest to the emitter.
253  /// Neither the emitter position nor the listener position are represented in this array.
254  AkVector nodes[kMaxNodes];
255 
256  /// Raw diffraction angles at each point, in radians.
257  AkReal32 angles[kMaxNodes];
258 
259  /// ID of the portals that the path passes through. For a given node at position i (in the nodes array), if the path diffracts on a geometric edge, then portals[i] will be an invalid portal ID (ie. portals[i].IsValid() will return false).
260  /// Otherwise, if the path diffracts through a portal at position i, then portals[i] will be the ID of that portal.
261  /// portal[0] represents the node closest to the listener; portal[numNodes-1] represents the node closest to the emitter.
262  AkPortalID portals[kMaxNodes];
263 
264  /// ID's of the rooms that the path passes through. For a given node at position i, room[i] is the room on the listener's side of the node. If node i diffracts through a portal,
265  /// then rooms[i] is on the listener's side of the portal, and rooms[i+1] is on the emitters side of the portal.
266  /// There is always one extra slot for a room so that the emitters room is always returned in slot room[numNodes] (assuming the path has not been truncated).
267  AkRoomID rooms[kMaxNodes + 1];
268 
269  /// Virtual emitter position. This is the position that is passed to the sound engine to render the audio using multi-positioning, for this particular path.
270  AkTransform virtualPos;
271 
272  /// Total number of nodes in the path. Defines the number of valid entries in the \c nodes, \c angles, and \c portals arrays. The \c rooms array has one extra slot to fit the emitter's room.
273  AkUInt32 nodeCount;
274 
275  /// Calculated total diffraction from this path, normalized to the range [0,1]
276  /// The diffraction amount is calculated from the sum of the deviation angles from a straight line, of all angles at each nodePoint.
277  // Can be thought of as how far into the 'shadow region' the sound has to 'bend' to reach the listener.
278  /// Depending on the spatial audio initialization settings, this value is applied internally, by spatial audio, to the obstruction or built-in parameter of the emitter game object.
279  /// \sa
280  /// - \ref AkDiffractionFlags
281  /// - \ref AkSpatialAudioInitSettings
282  AkReal32 diffraction;
283 
284  /// Total path length
285  /// Represents the sum of the length of the individual segments between nodes, with a correction factor applied for diffraction.
286  /// The correction factor simulates the phenomenon where by diffracted sound waves decay faster than incident sound waves and can be customized in the spatial audio init settings.
287  /// \sa
288  /// - \ref AkSpatialAudioInitSettings
289  AkReal32 totLength;
290 
291  /// Obstruction value for this path
292  /// This value includes the accumulated portal obstruction for all portals along the path.
293  AkReal32 obstructionValue;
294 };
295 
296 /// Parameters passed to \c SetPortal
297 struct AkPortalParams
298 {
299  /// Constructor
300  AkPortalParams() :
301  bEnabled(false)
302  {}
303 
304  /// Portal's position and orientation in the 3D world.
305  /// Position vector is the center of the opening.
306  /// OrientationFront vector must be unit-length and point along the normal of the portal, and must be orthogonal to Up. It defines the local positive-Z dimension (depth/transition axis) of the portal, used by Extent.
307  /// OrientationTop vector must be unit-length and point along the top of the portal (tangent to the wall), must be orthogonal to Front. It defines the local positive-Y direction (height) of the portal, used by Extent.
308  AkTransform Transform;
309 
310  /// Portal extent. Defines the dimensions of the portal relative to its center; all components must be positive numbers. The local X and Y dimensions (side and top) are used in diffraction calculations,
311  /// whereas the Z dimension (front) defines a depth value which is used to implement smooth transitions between rooms. It is recommended that users experiment with different portal depths to find a value
312  /// that results in appropriately smooth transitions between rooms.
313  AkVector Extent;
314 
315  /// Whether or not the portal is active/enabled. For example, this parameter may be used to simulate open/closed doors.
316  /// Portal diffraction is simulated when at least one portal exists and is active between an emitter and the listener.
317  /// Diffraction uses obstruction or the diffraction built-in game parameter, while transmission uses occlusion.
318  bool bEnabled;
319 
320  /// Name used to identify portal (optional).
321  AK::SpatialAudio::OsString strName;
322 
323  /// ID of the room to which the portal connects, in the direction of the Front vector. If a room with this ID has not been added via AK::SpatialAudio::SetRoom,
324  /// a room will be created with this ID and with default AkRoomParams. If you would later like to update the AkRoomParams, simply call AK::SpatialAudio::SetRoom again with this same ID.
325  /// - \ref AK::SpatialAudio::SetRoom
326  /// - \ref AK::SpatialAudio::RemoveRoom
327  /// - \ref AkRoomParams
328  AkRoomID FrontRoom;
329 
330  /// ID of the room to which the portal connects, in the direction opposite to the Front vector. If a room with this ID has not been added via AK::SpatialAudio::SetRoom,
331  /// a room will be created with this ID and with default AkRoomParams. If you would later like to update the AkRoomParams, simply call AK::SpatialAudio::SetRoom again with this same ID.
332  /// - \ref AK::SpatialAudio::SetRoom
333  /// - \ref AK::SpatialAudio::RemoveRoom
334  /// - \ref AkRoomParams
335  AkRoomID BackRoom;
336 };
337 
338 /// Parameters passed to \c SetRoom
339 struct AkRoomParams
340 {
341  /// Constructor
342  AkRoomParams() : ReverbAuxBus(AK_INVALID_AUX_ID)
343  , ReverbLevel(1.f)
344  , WallOcclusion(1.f)
345  , RoomGameObj_AuxSendLevelToSelf(0.f)
346  , RoomGameObj_KeepRegistered(false)
347 
348  {
349  Up.X = 0.f;
350  Up.Y = 1.f;
351  Up.Z = 0.f;
352  Front.X = 0.f;
353  Front.Y = 0.f;
354  Front.Z = 1.f;
355  }
356 
357  /// Copy Constructor
358  AkRoomParams(const AkRoomParams& in_rhs)
359  : Up(in_rhs.Up)
360  , Front(in_rhs.Front)
361  , ReverbAuxBus(in_rhs.ReverbAuxBus)
362  , ReverbLevel(in_rhs.ReverbLevel)
363  , WallOcclusion(in_rhs.WallOcclusion)
364  , strName(in_rhs.strName)
365  , RoomGameObj_AuxSendLevelToSelf(in_rhs.RoomGameObj_AuxSendLevelToSelf)
366  , RoomGameObj_KeepRegistered(in_rhs.RoomGameObj_KeepRegistered)
367  {
368  strName.AllocCopy();
369  }
370 
371  /// Assignment operator</span>
372  AkRoomParams& operator=(const AkRoomParams& in_rhs)
373  {
374  Up = in_rhs.Up;
375  Front = in_rhs.Front;
376  ReverbAuxBus = in_rhs.ReverbAuxBus;
377  ReverbLevel = in_rhs.ReverbLevel;
378  WallOcclusion = in_rhs.WallOcclusion;
379 
380  strName = in_rhs.strName;
381  strName.AllocCopy();
382 
383  RoomGameObj_AuxSendLevelToSelf = in_rhs.RoomGameObj_AuxSendLevelToSelf;
384  RoomGameObj_KeepRegistered = in_rhs.RoomGameObj_KeepRegistered;
385 
386  return *this;
387  }
388 
389  /// Room Orientation. Up and Front must be orthonormal.
390  /// Room orientation has an effect when the associated aux bus (see ReverbAuxBus) is set with 3D Spatialization in Wwise, as 3D Spatialization implements relative rotation of the emitter (room) and listener.
391  AkVector Up;
392  AkVector Front;
393 
394  /// The reverb aux bus that is associated with this room.
395  /// When Spatial Audio is told that a game object is in a particular room via SetGameObjectInRoom, a send to this aux bus will be created to model the reverb of the room.
396  /// Using a combination of Rooms and Portals, Spatial Audio manages which game object the aux bus is spawned on, and what control gain is sent to the bus.
397  /// When a game object is inside a connected portal, as defined by the portal's orientation and extent vectors, both this aux send and the aux send of the adjacent room are active.
398  /// Spatial audio modulates the control value for each send based on the game object's position, in relation to the portal's z-azis and extent, to crossfade the reverb between the two rooms.
399  /// If more advanced control of reverb is desired, SetGameObjectAuxSendValues can be used to add additional sends on to a game object.
400  /// - \ref AK::SpatialAudio::SetGameObjectInRoom
401  /// - \ref AK::SoundEngine::SetGameObjectAuxSendValues
402  AkAuxBusID ReverbAuxBus;
403 
404  /// The reverb control value for the send to ReverbAuxBus. Valid range: (0.f-1.f)
405  /// Can be used to implement multiple rooms that share the same aux bus, but have different reverb levels.
406  AkReal32 ReverbLevel;
407 
408  /// Occlusion level to set when modeling transmission through walls. Transmission is modeled only when the sound emitted enables diffraction and there is no direct line of sight from the emitter to the listener.
409  /// This occlusion value is only applied when the listener and the emitter are in different rooms; it is taken as the maximum between the emitter's room's WallOcclusion and the listener's room's WallOcclusion.
410  /// If there is geometry in between the listener and the emitter, then the occlusion value assigned to surfaces hit by the ray between the emitter and listener is also taken into account.
411  /// The maximum of all the surfaces' occlusion value (see \c AkAcousticSurface), and the WallOcclusion value is used to render the transmission path.
412  /// Valid range: (0.f-1.f)
413  /// - \ref AkAcousticSurface
414  AkReal32 WallOcclusion;
415 
416  /// Name used to identify room (optional)
417  AK::SpatialAudio::OsString strName;
418 
419  /// Send level for sounds that are posted on the room game object; adds reverb to ambience and room tones. Valid range: (0.f-1.f). Set to a value greater than 0 to have spatial audio create a send on the room game object,
420  /// where the room game object itself is specified as the listener and ReverbAuxBus is specified as the aux bus. A value of 0 disables the aux send. This should not be confused with ReverbLevel, which is the send level
421  /// for spatial audio emitters sending to the room game object.
422  /// \aknote The room game object can be accessed though the ID that is passed to \c SetRoom() and the \c AkRoomID::AsGameObjectID() method. Posting an event on the room game object leverages automatic room game object placement
423  /// by spatial audio so that when the listener is inside the room, the sound comes from all around the listener, and when the listener is outside the room, the sound comes from the portal(s). Typically, this would be used for
424  /// surround ambiance beds or room tones. Point source sounds should use separate game objects that are registered as spatial audio emitters.
425  /// \sa
426  /// - \ref AkRoomParams::RoomGameObj_KeepRegistered
427  /// - \ref AkRoomID
428  AkReal32 RoomGameObj_AuxSendLevelToSelf;
429 
430  /// If set to true, the room game object will be registered on calling \c SetRoom(), and not released untill the room is deleted or removed with \c RemoveRoom(). If set to false, spatial audio will register
431  /// the room object only when it is needed by the sound propagation system for the purposes of reverb, and will unregister the game object when all reverb tails have finished.
432  /// If the game intends to post events on the room game object for the purpose of ambiance or room tones, RoomGameObj_KeepRegistered should be set to true.
433  /// \aknote The room game object can be accessed though the ID that is passed to \c SetRoom() and the \c AkRoomID::AsGameObjectID() method. Posting an event on the room game object leverages automatic room game object placement
434  /// by spatial audio so that when the listener is inside the room, the sound comes from all around the listener, and when the listener is outside the room, the sound comes from the portal(s). Typically, this would be used for
435  /// surround ambiance beds or room tones. Point source sounds should use separate game objects that are registered as spatial audio emitters.
436  /// \sa
437  /// - \ref AkRoomParams::RoomGameObj_AuxSendLevelToSelf
438  /// - \ref AkRoomID
439  bool RoomGameObj_KeepRegistered;
440 
441 
442 };
443 
444 /// Parameters passed to \c SetGeometry
445 struct AkGeometryParams
446 {
447  /// Constructor
448  AkGeometryParams() : Triangles(NULL), NumTriangles(0), Vertices(NULL), NumVertices(0), Surfaces(NULL), NumSurfaces(0), EnableDiffraction(false), EnableDiffractionOnBoundaryEdges(false) {}
449 
450  /// Pointer to an array of AkTriangle structures.
451  /// This array will be copied into spatial audio memory and will not be accessed after \c SetGeometry returns.
452  /// - \ref AkTriangle
453  /// - \ref AK::SpatialAudio::SetGeometry
454  /// - \ref AK::SpatialAudio::RemoveGeometry
455  AkTriangle* Triangles;
456 
457  /// Number of triangles in Triangles.
458  AkTriIdx NumTriangles;
459 
460  /// Pointer to an array of AkVertex structures.
461  /// This array will be copied into spatial audio memory and will not be accessed after \c SetGeometry returns.
462  /// - \ref AkVertex
463  /// - \ref AK::SpatialAudio::SetGeometry
464  /// - \ref AK::SpatialAudio::RemoveGeometry
465  AkVertex* Vertices;
466 
467  ///< Number of vertices in Vertices.
468  AkVertIdx NumVertices;
469 
470  ///< Pointer to an array of AkAcousticSurface structures.
471  /// This array will be copied into spatial audio memory and will not be accessed after \c SetGeometry returns.
472  /// - \ref AkVertex
473  /// - \ref AK::SpatialAudio::SetGeometry
474  /// - \ref AK::SpatialAudio::RemoveGeometry
475  AkAcousticSurface* Surfaces;
476 
477  /// Number of of AkTriangleInfo structures in in_pTriangleInfo and number of AkTriIdx's in in_infoMap.
478  AkSurfIdx NumSurfaces;
479 
480  /// Associate this geometry set with the room \c RoomID. Associating a geometry set with a particular room will limit the scope in which the geometry is visible/accessible. \c RoomID can be left as default (-1), in which case
481  /// this geometry set will have a global scope. It is recommended to associate geometry with a room when the geometry is (1) fully contained within the room (ie. not visible to other rooms accept by portals),
482  /// and (2) the room does not share geometry with other rooms. Doing so reduces the search space for ray casting performed by reflection and diffraction calculations. Take note that once one or more geometry sets
483  /// are associated with a room, that room will no longer be able to access geometry that is in the global scope.
484  /// - \ref AK::SpatialAudio::SetRoom
485  /// - \ref AkRoomParams
486  AkRoomID RoomID;
487 
488  /// Switch to enable or disable geometric diffraction for this Geometry.
489  bool EnableDiffraction;
490 
491  /// Switch to enable or disable geometric diffraction on boundary edges for this Geometry. Boundary edges are edges that are connected to only one triangle.
492  bool EnableDiffractionOnBoundaryEdges;
493 };
494 
495 /// Audiokinetic namespace
496 namespace AK
497 {
498  /// Audiokinetic spatial audio namespace
499  namespace SpatialAudio
500  {
501  ////////////////////////////////////////////////////////////////////////
502  /// @name Basic functions.
503  /// In order to use SpatialAudio, you need to initalize it using Init, and register the listeners that you plan on using with any of the services offered by SpatialAudio, using
504  /// RegisterListener respectively, _after_ having registered their corresponding game object to the sound engine.
505  /// \akwarning At the moment, there can be only one Spatial Audio listener registered at any given time.
506  //@{
507 
508  /// Initialize the SpatialAudio API.
509  AK_EXTERNAPIFUNC(AKRESULT, Init)(const AkSpatialAudioInitSettings& in_initSettings);
510 
511  /// Assign a game object as the Spatial Audio listener. There can be only one Spatial Audio listener registered at any given time; in_gameObjectID will replace any previously set Spatial Audio listener.
512  /// The game object passed in must be registered by the client, at some point, for sound to be heard. It is not necessary to be registered at the time of calling this function.
513  /// If not listener is explicitly registered to spatial audio, then a default listener (set via \c AK::SoundEngine::SetDefaultListeners()) is selected. If the are no default listeners, or there are more than one
514  /// default listeners, then it is necessary to call RegisterListener() to specify which listener to use with Spatial Audio.
515  AK_EXTERNAPIFUNC(AKRESULT, RegisterListener)(
516  AkGameObjectID in_gameObjectID ///< Game object ID
517  );
518 
519  /// Unregister a game object as a listener in the SpatialAudio API; clean up Spatial Audio listener data associated with in_gameObjectID.
520  /// If in_gameObjectID is the current registered listener, calling this function will clear the Spatial Audio listener and
521  /// Spatial Audio features will be disabled until another listener is registered.
522  /// This function is optional - listener are automatically unregistered when their game object is deleted in the sound engine.
523  /// \sa
524  /// - \ref AK::SpatialAudio::RegisterListener
525  AK_EXTERNAPIFUNC(AKRESULT, UnregisterListener)(
526  AkGameObjectID in_gameObjectID ///< Game object ID
527  );
528 
529  //@}
530 
531  ////////////////////////////////////////////////////////////////////////
532  /// @name Helper functions for passing game data to the Wwise Reflect plug-in.
533  /// Use this API for detailed placement of reflection image sources.
534  /// \aknote These functions are low-level and useful when your game engine already implements a geometrical approach to sound propagation such as an image-source or a ray tracing algorithm.
535  /// Functions of Geometry are preferred and easier to use with the Wwise Reflect plug-in. \endaknote
536  //@{
537 
538  /// Add or update an individual image source for processing via the AkReflect plug-in. Use this API for detailed placement of
539  /// reflection image sources, whose positions have been determined by the client, such as from the results of a ray cast, computation or by manual placement. One possible
540  /// use case is generating reflections that originate far enough away that they can be modeled as a static point source, for example, off of a distant mountain.
541  /// The SpatialAudio API manages image sources added via SetImageSource() and sends them to the AkReflect plug-in that is on the aux bus with ID \c in_AuxBusID.
542  /// The image source will apply only to the the game object specified by \c in_gameObjectID.
543  /// SetImageSource takes a room ID to indicate which room the reflection is logically part of, even though the position of the image source may be outside of the extents of the room.
544  /// This ID is used as a filter, so that it is not possible to hear reflections for rooms that the emitter and listener are not both inside. To use this feature, the emitter's and listener's rooms must also be
545  /// specified using SetGameObjectInRoom. If you are not using the rooms and portals API, or the image source is not associated with a room, pass a default-constructed room ID.
546  /// \aknote The \c AkImageSourceSettings struct passed in \c in_info must contain a unique image source ID to be able to identify this image source across frames and when updating and/or removing it later.
547  /// Each instance of AkReflect has its own set of data, so you may reuse ID, if desired, as long as \c in_gameObjectID and \c in_AuxBusID are different.
548  /// \endaknote
549  /// \aknote Early reflection send level and bus in the authoring tool do not apply to image sources set with \c SetImageSource(). When using this function, the Reflect bus and send level
550  /// may only be set programmatically. Also, it is not possible to use the geometric reflections API on the same aux bus and game object. If using the geometric reflections API and the SetImageSource API in conjunction, be sure to specify an
551  /// aux bus to \c SetImageSource that is unique from the aux bus(es) defined in the authoring tool, and from those passed to \c SetEarlyReflectionsAuxSend.
552  /// \endaknote
553  /// \aknote For proper operation with AkReflect and the SpatialAudio API, any aux bus using AkReflect should have 'Listener Relative Routing' checked and the 3D Spatialization set to None in the Wwise authoring tool. See \ref spatial_audio_wwiseprojectsetup_businstances for more details. \endaknote
554  /// \sa
555  /// - \ref AK::SpatialAudio::RemoveImageSource
556  /// - \ref AK::SpatialAudio::ClearImageSources
557  /// - \ref AK::SpatialAudio::SetGameObjectInRoom
558  /// - \ref AK::SpatialAudio::SetEarlyReflectionsAuxSend
559  AK_EXTERNAPIFUNC(AKRESULT, SetImageSource)(
560  AkImageSourceID in_srcID, ///< The ID of the image source being added.
561  const AkImageSourceSettings& in_info, ///< Image source information.
562  AkUniqueID in_AuxBusID, ///< Aux bus that has the AkReflect plug in for early reflection DSP.
563  AkRoomID in_roomID, ///< The ID of the room that the image source is logically a part of; pass a default-constructed ID if not in, or not using, a room.
564  AkGameObjectID in_gameObjectID ///< The ID of the emitter game object to which the image source applies. Must be a valid and registered game object.
565  );
566 
567  /// Remove an individual reflection image source that was previously added via \c SetImageSource.
568  /// \sa
569  /// - \ref AK::SpatialAudio::SetImageSource
570  /// - \ref AK::SpatialAudio::ClearImageSources
571  AK_EXTERNAPIFUNC(AKRESULT, RemoveImageSource)(
572  AkImageSourceID in_srcID, ///< The ID of the image source to remove.
573  AkUniqueID in_AuxBusID, ///< Aux bus that was passed to SetImageSource.
574  AkGameObjectID in_gameObjectID ///< Game object ID that was passed to SetImageSource.
575  );
576 
577  /// Remove all image sources matching \c in_AuxBusID and \c in_gameObjectID that were previously added via \c SetImageSource.
578  /// Both \c in_AuxBusID and \c in_gameObjectID can be treated as wild cards matching all aux buses and/or all game object, by passing \c AK_INVALID_AUX_ID and/or \c AK_INVALID_GAME_OBJECT, respectively.
579  /// \sa
580  /// - \ref AK::SpatialAudio::SetImageSource
581  /// - \ref AK::SpatialAudio::RemoveImageSource
582  AK_EXTERNAPIFUNC(AKRESULT, ClearImageSources)(
583  AkUniqueID in_AuxBusID = AK_INVALID_AUX_ID, ///< Aux bus that was passed to SetImageSource, or AK_INVALID_AUX_ID to match all aux buses.
584  AkGameObjectID in_gameObjectID = AK_INVALID_GAME_OBJECT ///< Game object ID that was passed to SetImageSource, or AK_INVALID_GAME_OBJECT to match all game objects.
585  );
586 
587  //@}
588 
589  ////////////////////////////////////////////////////////////////////////
590  /// @name Geometry
591  /// Geometry API for early reflection processing using Wwise Reflect.
592  //@{
593 
594  /// Add or update a set of geometry from the \c SpatialAudio module for geometric reflection and diffaction processing. A geometry set is a logical set of vertices, triangles, and acoustic surfaces,
595  /// which are referenced by the same \c AkGeometrySetID. The ID (\c in_GeomSetID) must be unique and is also chosen by the client in a manner similar to \c AkGameObjectID's.
596  /// \sa
597  /// - \ref AkGeometryParams
598  /// - \ref AK::SpatialAudio::RemoveGeometry
599  AK_EXTERNAPIFUNC(AKRESULT, SetGeometry)(
600  AkGeometrySetID in_GeomSetID, ///< Unique geometry set ID, chosen by client.
601  const AkGeometryParams& in_params ///< Geometry parameters to set.
602  );
603 
604  /// Remove a set of geometry to the SpatialAudio API.
605  /// \sa
606  /// - \ref AK::SpatialAudio::SetGeometry
607  AK_EXTERNAPIFUNC(AKRESULT, RemoveGeometry)(
608  AkGeometrySetID in_SetID ///< ID of geometry set to be removed.
609  );
610 
611  /// Query information about the reflection paths that have been calculated via geometric reflection processing in the SpatialAudio API. This function can be used for debugging purposes.
612  /// This function must acquire the global sound engine lock and therefore, may block waiting for the lock.
613  /// \sa
614  /// - \ref AkReflectionPathInfo
615  AK_EXTERNAPIFUNC(AKRESULT, QueryReflectionPaths)(
616  AkGameObjectID in_gameObjectID, ///< The ID of the game object that the client wishes to query.
617  AkVector& out_listenerPos, ///< Returns the position of the listener game object that is associated with the game object \c in_gameObjectID.
618  AkVector& out_emitterPos, ///< Returns the position of the emitter game object \c in_gameObjectID.
619  AkReflectionPathInfo* out_aPaths, ///< Pointer to an array of \c AkReflectionPathInfo's which will be filled after returning.
620  AkUInt32& io_uArraySize ///< The number of slots in \c out_aPaths, after returning the number of valid elements written.
621  );
622 
623  //@}
624 
625  ////////////////////////////////////////////////////////////////////////
626  /// @name Rooms and Portals
627  /// Sound Propagation API using rooms and portals.
628  //@{
629 
630  /// Add or update a room. Rooms are used to connect portals and define an orientation for oriented reverbs. This function may be called multiple times with the same ID to update the parameters of the room.
631  /// \akwarning The ID (\c in_RoomID) must be chosen in the same manner as \c AkGameObjectID's, as they are in the same ID-space. The spatial audio lib manages the
632  /// registration/unregistration of internal game objects for rooms that use these IDs and, therefore, must not collide.
633  /// Also, the room ID must not be in the reserved range (AkUInt64)(-32) to (AkUInt64)(-2) inclusively. You may, however, explicitly add the default room ID AK::SpatialAudio::kOutdoorRoomID (-1)
634  /// in order to customize its AkRoomParams, to provide a valid auxiliary bus, for example.\endakwarning
635  /// \sa
636  /// - \ref AkRoomID
637  /// - \ref AkRoomParams
638  /// - \ref AK::SpatialAudio::RemoveRoom
639  AK_EXTERNAPIFUNC(AKRESULT, SetRoom)(
640  AkRoomID in_RoomID, ///< Unique room ID, chosen by the client.
641  const AkRoomParams& in_Params ///< Parameter for the room.
642  );
643 
644  /// Remove a room.
645  /// \sa
646  /// - \ref AkRoomID
647  /// - \ref AK::SpatialAudio::SetRoom
648  AK_EXTERNAPIFUNC(AKRESULT, RemoveRoom)(
649  AkRoomID in_RoomID ///< Room ID that was passed to \c SetRoom.
650  );
651 
652  /// Add or update an acoustic portal. A portal is an opening that connects two or more rooms to simulate the transmission of reverberated (indirect) sound between the rooms.
653  /// This function may be called multiple times with the same ID to update the parameters of the portal. The ID (\c in_PortalID) must be chosen in the same manner as \c AkGameObjectID's,
654  /// as they are in the same ID-space. The spatial audio lib manages the registration/unregistration of internal game objects for portals that use these IDs, and therefore must not collide.
655  /// \sa
656  /// - \ref AkPortalID
657  /// - \ref AkPortalParams
658  /// - \ref AK::SpatialAudio::RemovePortal
659  AK_EXTERNAPIFUNC(AKRESULT, SetPortal)(
660  AkPortalID in_PortalID, ///< Unique portal ID, chosen by the client.
661  const AkPortalParams& in_Params ///< Parameter for the portal.
662  );
663 
664  /// Remove a portal.
665  /// \sa
666  /// - \ref AkPortalID
667  /// - \ref AK::SpatialAudio::SetPortal
668  AK_EXTERNAPIFUNC(AKRESULT, RemovePortal)(
669  AkPortalID in_PortalID ///< ID of portal to be removed, which was originally passed to SetPortal.
670  );
671 
672  /// Set the room that the game object is currently located in - usually the result of a containment test performed by the client. The room must have been registered with \c SetRoom.
673  /// Setting the room for a game object provides the basis for the sound propagation service, and also sets which room's reverb aux bus to send to. The sound propagation service traces the path
674  /// of the sound from the emitter to the listener, and calculates the diffraction as the sound passes through each portal. The portals are used to define the spatial location of the diffracted and reverberated
675  /// audio.
676  /// \sa
677  /// - \ref AK::SpatialAudio::SetRoom
678  /// - \ref AK::SpatialAudio::RemoveRoom
679  AK_EXTERNAPIFUNC(AKRESULT, SetGameObjectInRoom)(
680  AkGameObjectID in_gameObjectID, ///< Game object ID
681  AkRoomID in_CurrentRoomID ///< RoomID that was passed to \c AK::SpatialAudio::SetRoom
682  );
683 
684  /// Set the early reflections order for reflection calculation. The reflections order indicates the number of times sound can bounce off of a surface.
685  /// A higher number requires more CPU resources but results in denser early reflections. Set to 0 to globally disable reflections processing.
686  AK_EXTERNAPIFUNC(AKRESULT, SetReflectionsOrder)(
687  AkUInt32 in_uReflectionsOrder, ///< Number of reflections to calculate. Valid range [0,4]
688  bool in_bUpdatePaths ///< Set to true to clear existing higher-order paths and to force the re-computation of new paths. If false, existing paths will remain and new paths will be computed when the emitter or listener moves.
689  );
690 
691  /// Set the number of rays cast from the listener by the stochastic ray casting engine.
692  /// A higher number requires more CPU resources but provides more accurate results. Default value (100) should be good for most applications.
693  ///
694  AK_EXTERNAPIFUNC(AKRESULT, SetNumberOfPrimaryRays)(
695  AkUInt32 in_uNbPrimaryRays ///< Number of rays cast from the listener
696  );
697 
698  /// Set an early reflections auxiliary bus for a particular game object.
699  /// Geometrical reflection calculation inside spatial audio is enabled for a game object if any sound playing on the game object has a valid early reflections aux bus specified in the authoring tool,
700  /// or if an aux bus is specified via \c SetEarlyReflectionsAuxSend.
701  /// The \c in_auxBusID parameter of SetEarlyReflectionsAuxSend applies to sounds playing on the game object \c in_gameObjectID which have not specified an early reflection bus in the authoring tool -
702  /// the parameter specified on individual sounds' reflection bus takes priority over the value passed in to \c SetEarlyReflectionsAuxSend.
703  /// \aknote
704  /// Users may apply this function to avoid duplicating sounds in the actor-mixer hierarchy solely for the sake of specifying a unique early reflection bus, or in any situation where the same
705  /// sound should be played on different game objects with different early reflection aux buses (the early reflection bus must be left blank in the authoring tool if the user intends to specify it through the API). \endaknote
706  AK_EXTERNAPIFUNC(AKRESULT, SetEarlyReflectionsAuxSend)(
707  AkGameObjectID in_gameObjectID, ///< Game object ID
708  AkAuxBusID in_auxBusID ///< Auxiliary bus ID. Applies only to sounds which have not specified an early reflection bus in the authoring tool. Pass \c AK_INVALID_AUX_ID to set only the send volume.
709  );
710 
711  /// Set an early reflections send volume for a particular game object.
712  /// The \c in_fSendVolume parameter is used to control the volume of the early reflections send. It is combined with the early reflections volume specified in the authoring tool, and is applied to all sounds
713  /// playing on the game object.
714  /// Setting \c in_fSendVolume to 0.f will disable all reflection processing for this game object.
715  AK_EXTERNAPIFUNC(AKRESULT, SetEarlyReflectionsVolume)(
716  AkGameObjectID in_gameObjectID, ///< Game object ID
717  AkReal32 in_fSendVolume ///< Send volume (linear) for auxiliary send. Set 0.f to disable reflection processing. Valid range 0.f-1.f.
718  );
719 
720  /// Set the obstruction and occlusion value for a portal that has been registered with Spatial Audio.
721  /// Portal obstruction is used to simulate objects between the portal and the listener that are obstructing the sound coming from the portal.
722  /// The obstruction value affects only the portals dry path, and should relate to how much of the opening
723  /// is obstructed, and must be calculated by the client. It is applied to the room's game object, as well as to all the emitters virtual positions
724  /// which propagate from that room through this portal.
725  /// Portal occlusion is applied only on the room game object, and affects both the wet and dry path of the signal emitted from the room's bus.
726  AK_EXTERNAPIFUNC(AKRESULT, SetPortalObstructionAndOcclusion)(
727  AkPortalID in_PortalID, ///< Portal ID.
728  AkReal32 in_fObstruction, ///< Obstruction value. Valid range 0.f-1.f
729  AkReal32 in_fOcclusion ///< Occlusion value. Valid range 0.f-1.f
730  );
731 
732  /// Query information about the wet diffraction amount for the portal \c in_portal, returned as a normalized value \c out_wetDiffraction in the range [0,1].
733  /// The wet diffraction is calculated from how far into the 'shadow region' the listener is from the portal. Unlike dry diffraction, the
734  /// wet diffraction does not depend on the incident angle, but only the normal of the portal.
735  /// Depending on the spatial audio initialization settings, this value is applied by spatial audio, to the obstruction and/or built-in game parameter of the room game object that is
736  /// on the other side of the portal (relative to the listener).
737  /// This function must acquire the global sound engine lock and therefore, may block waiting for the lock.
738  /// \sa
739  /// - \ref AkDiffractionFlags
740  /// - \ref AkSpatialAudioInitSettings
741  AK_EXTERNAPIFUNC(AKRESULT, QueryWetDiffraction)(
742  AkPortalID in_portal, ///< The ID of the game object that the client wishes to query.
743  AkReal32& out_wetDiffraction ///< The number of slots in \c out_aPaths, after returning the number of valid elements written.
744  );
745 
746  /// Query information about the diffraction state for a particular listener and emitter, which has been calculated using the data provided via the spatial audio emitter API. This function can be used for debugging purposes.
747  /// Returned in \c out_aPaths, this array contains the sound paths calculated from diffraction around a geometric edge and/or diffraction through portals connecting rooms.
748  /// No paths will be returned in any of the following conditions: (1) the emitter game object has a direct line of sight to the listener game object, (2) the emitter and listener are in the same room, and the listener is completely outside the radius of the emitter,
749  /// or (3) The emitter and listener are in different rooms, but there are no paths found via portals between the emitter and the listener.
750  /// A single path with zero diffraction nodes is returned when all of the following conditions are met: (1) the emitter and listener are in the same room, (2) there is no direct line of sight, and (3) either the Voice's Attenuation's curve max distance is exceeded or the accumulated diffraction coefficient exceeds 1.0.
751  /// This function must acquire the global sound engine lock and, therefore, may block waiting for the lock.
752  /// \sa
753  /// - \ref AkDiffractionPathInfo
754  AK_EXTERNAPIFUNC(AKRESULT, QueryDiffractionPaths)(
755  AkGameObjectID in_gameObjectID, ///< The ID of the game object that the client wishes to query.
756  AkVector& out_listenerPos, ///< Returns the position of the listener game object that is associated with the game object \c in_gameObjectID.
757  AkVector& out_emitterPos, ///< Returns the position of the emitter game object \c in_gameObjectID.
758  AkDiffractionPathInfo* out_aPaths, ///< Pointer to an array of \c AkDiffractionPathInfo's which will be filled on return.
759  AkUInt32& io_uArraySize ///< The number of slots in \c out_aPaths, after returning the number of valid elements written.
760  );
761 
762  //@}
763  }
764 };
AkDiffractionPathInfo::virtualPos
AkTransform virtualPos
Virtual emitter position. This is the position that is passed to the sound engine to render the audio...
Definition: AkSpatialAudio.h:270
AK_DEFAULT_DIFFR_SHADOW_ATTEN
#define AK_DEFAULT_DIFFR_SHADOW_ATTEN
Definition: AkSpatialAudioTypes.h:47
AkRoomParams::RoomGameObj_KeepRegistered
bool RoomGameObj_KeepRegistered
Definition: AkSpatialAudio.h:439
AK::SpatialAudio::QueryWetDiffraction
AKSOUNDENGINE_API AKRESULT QueryWetDiffraction(AkPortalID in_portal, AkReal32 &out_wetDiffraction)
AkRoomParams::AkRoomParams
AkRoomParams(const AkRoomParams &in_rhs)
Copy Constructor
Definition: AkSpatialAudio.h:358
AkTriIdx
AkUInt16 AkTriIdx
Definition: AkSpatialAudioTypes.h:89
AK::SpatialAudio::UnregisterListener
AKSOUNDENGINE_API AKRESULT UnregisterListener(AkGameObjectID in_gameObjectID)
AkTriangle
Triangle for a spatial audio mesh.
Definition: AkSpatialAudio.h:157
AkReflectionPathInfo::numPathPoints
AkUInt32 numPathPoints
Number of valid elements in the pathPoint[], surfaces[], and diffraction[] arrays.
Definition: AkSpatialAudio.h:229
AkSpatialAudioInitSettings::fDiffractionShadowAttenFactor
AkReal32 fDiffractionShadowAttenFactor
Multiplier that is applied to the distance attenuation of diffracted sounds (sounds that are in the '...
Definition: AkSpatialAudio.h:72
AkVertex::AkVertex
AkVertex(AkReal32 in_X, AkReal32 in_Y, AkReal32 in_Z)
Constructor
Definition: AkSpatialAudio.h:148
AkImageSourceSettings::params
AkImageSourceParams params
Image source parameters.
Definition: AkSpatialAudio.h:132
AK::SpatialAudio::QueryReflectionPaths
AKSOUNDENGINE_API AKRESULT QueryReflectionPaths(AkGameObjectID in_gameObjectID, AkVector &out_listenerPos, AkVector &out_emitterPos, AkReflectionPathInfo *out_aPaths, AkUInt32 &io_uArraySize)
AkPortalParams
Parameters passed to SetPortal
Definition: AkSpatialAudio.h:298
AK
Audiokinetic namespace
Definition: AkWwiseSDKVersion.cs:32
AkReflectionPathInfo::imageSource
AkVector imageSource
Apparent source of the reflected sound that follows this path.
Definition: AkSpatialAudio.h:218
AK::SpatialAudio::RemovePortal
AKSOUNDENGINE_API AKRESULT RemovePortal(AkPortalID in_PortalID)
AkRoomParams::Front
AkVector Front
Definition: AkSpatialAudio.h:392
AkGeometryParams::NumTriangles
AkTriIdx NumTriangles
Number of triangles in Triangles.
Definition: AkSpatialAudio.h:458
AkRoomParams::Up
AkVector Up
Definition: AkSpatialAudio.h:391
AkImageSourceSettings::name
AK::SpatialAudio::String name
Name given to image source, can be used to identify the image source in the AK Reflect plugin UI.
Definition: AkSpatialAudio.h:138
AkTriangle::point2
AkVertIdx point2
Index into the vertex table passed into AkGeometryParams that describes the third vertex of the trian...
Definition: AkSpatialAudio.h:180
AkRoomParams::RoomGameObj_AuxSendLevelToSelf
AkReal32 RoomGameObj_AuxSendLevelToSelf
Definition: AkSpatialAudio.h:428
AK::SpatialAudio::SetGameObjectInRoom
AKSOUNDENGINE_API AKRESULT SetGameObjectInRoom(AkGameObjectID in_gameObjectID, AkRoomID in_CurrentRoomID)
AkAcousticSurface::AkAcousticSurface
AkAcousticSurface()
Constructor
Definition: AkSpatialAudio.h:194
AkTriangle::AkTriangle
AkTriangle(AkVertIdx in_pt0, AkVertIdx in_pt1, AkVertIdx in_pt2, AkSurfIdx in_surfaceInfo)
Constructor
Definition: AkSpatialAudio.h:166
AkVertex::Z
AkReal32 Z
Z coordinate
Definition: AkSpatialAudio.h:152
AK::SpatialAudio::Init
AKSOUNDENGINE_API AKRESULT Init(const AkSpatialAudioInitSettings &in_initSettings)
Initialize the SpatialAudio API.
AkPortalParams::AkPortalParams
AkPortalParams()
Constructor
Definition: AkSpatialAudio.h:300
AkImageSourceSettings::AkImageSourceSettings
AkImageSourceSettings(AkVector in_sourcePosition, AkReal32 in_fDistanceScalingFactor, AkReal32 in_fLevel)
Definition: AkSpatialAudio.h:97
AkReflectionPathInfo::pathPoint
AkVector pathPoint[AK_MAX_REFLECTION_PATH_LENGTH]
Definition: AkSpatialAudio.h:222
AkRoomParams::ReverbAuxBus
AkAuxBusID ReverbAuxBus
Definition: AkSpatialAudio.h:402
AK_INVALID_VERTEX
#define AK_INVALID_VERTEX
Definition: AkSpatialAudioTypes.h:93
AkAcousticSurface::textureID
AkUInt32 textureID
Definition: AkSpatialAudio.h:201
AkPortalParams::FrontRoom
AkRoomID FrontRoom
Definition: AkSpatialAudio.h:328
AkRoomParams::AkRoomParams
AkRoomParams()
Constructor
Definition: AkSpatialAudio.h:342
AkDiffractionPathInfo::nodeCount
AkUInt32 nodeCount
Total number of nodes in the path. Defines the number of valid entries in the nodes,...
Definition: AkSpatialAudio.h:273
AkGameObjectID
AkUInt64 AkGameObjectID
Game object ID
Definition: AkTypes.h:65
AK_EXTERNAPIFUNC
#define AK_EXTERNAPIFUNC(_type, _name)
Definition: AkSoundEngineExport.h:78
AK::SpatialAudio::SetEarlyReflectionsAuxSend
AKSOUNDENGINE_API AKRESULT SetEarlyReflectionsAuxSend(AkGameObjectID in_gameObjectID, AkAuxBusID in_auxBusID)
AkPortalParams::strName
AK::SpatialAudio::OsString strName
Name used to identify portal (optional).
Definition: AkSpatialAudio.h:321
AkImageSourceTexture::uNumTexture
AkUInt32 uNumTexture
Number of valid textures in the texture array.
Definition: AkReflectGameData.h:69
AKRESULT
AKRESULT
Standard function call result.
Definition: AkTypes.h:122
AkAcousticSurface::strName
const char * strName
Name to describe this surface
Definition: AkSpatialAudio.h:211
AkDiffractionPathInfo::nodes
AkVector nodes[kMaxNodes]
Definition: AkSpatialAudio.h:254
AkReflectionPathInfo::surfaces
AkAcousticSurface surfaces[AK_MAX_REFLECTION_PATH_LENGTH]
Definition: AkSpatialAudio.h:226
AkImageSourceID
AkUInt32 AkImageSourceID
Image Source ID
Definition: AkTypes.h:88
AkGeometryParams::Surfaces
AkAcousticSurface * Surfaces
Definition: AkSpatialAudio.h:475
AkVertex::X
AkReal32 X
X coordinate
Definition: AkSpatialAudio.h:150
AK::SpatialAudio::RemoveImageSource
AKSOUNDENGINE_API AKRESULT RemoveImageSource(AkImageSourceID in_srcID, AkUniqueID in_AuxBusID, AkGameObjectID in_gameObjectID)
AkGeometryParams::NumVertices
AkVertIdx NumVertices
Definition: AkSpatialAudio.h:468
DiffractionFlags_UseBuiltInParam
@ DiffractionFlags_UseBuiltInParam
Set the Wwise built-in game parameter value for diffraction angle. This is a flexible approach that c...
Definition: AkSpatialAudio.h:46
AkDiffractionFlags
AkDiffractionFlags
AkDiffractionFlags determine if diffraction values for sound passing through portals will be calculat...
Definition: AkSpatialAudio.h:45
NULL
#define NULL
Definition: AkTypes.h:49
AkRoomParams::ReverbLevel
AkReal32 ReverbLevel
Definition: AkSpatialAudio.h:406
AkSurfIdx
AkUInt16 AkSurfIdx
Definition: AkSpatialAudioTypes.h:90
AkRoomParams::strName
AK::SpatialAudio::OsString strName
Name used to identify room (optional)
Definition: AkSpatialAudio.h:417
AK::SpatialAudio::SetGeometry
AKSOUNDENGINE_API AKRESULT SetGeometry(AkGeometrySetID in_GeomSetID, const AkGeometryParams &in_params)
AkReflectionPathInfo
Structure for retrieving information about the indirect paths of a sound that have been calculated vi...
Definition: AkSpatialAudio.h:216
AkTriangle::surface
AkSurfIdx surface
Definition: AkSpatialAudio.h:184
AK::SpatialAudio::SetPortal
AKSOUNDENGINE_API AKRESULT SetPortal(AkPortalID in_PortalID, const AkPortalParams &in_Params)
AkGeometryParams::RoomID
AkRoomID RoomID
Definition: AkSpatialAudio.h:486
AkReflectionPathInfo::isOccluded
bool isOccluded
True if the sound path was occluded. Note that the spatial audio library must be recompiled with #def...
Definition: AkSpatialAudio.h:241
AkGrowByPolicy_Legacy_SpatialAudio
Definition: AkSpatialAudio.h:39
AkVector::Y
AkReal32 Y
Y Position
Definition: AkTypes.h:319
AkUniqueID
AkUInt32 AkUniqueID
Unique 32-bit ID
Definition: AkTypes.h:57
AkRoomParams::operator=
AkRoomParams & operator=(const AkRoomParams &in_rhs)
Assignment operator</div>
Definition: AkSpatialAudio.h:372
AkImageSourceSettings::SetOneTexture
void SetOneTexture(AkUniqueID in_texture)
Definition: AkSpatialAudio.h:119
AkDiffractionPathInfo::angles
AkReal32 angles[kMaxNodes]
Raw diffraction angles at each point, in radians.
Definition: AkSpatialAudio.h:257
AkSpatialAudioInitSettings::bEnableTransmission
bool bEnableTransmission
Enable modeling of transmission of sound through walls.
Definition: AkSpatialAudio.h:89
AkVector::X
AkReal32 X
X Position
Definition: AkTypes.h:318
AkVertex::Y
AkReal32 Y
Y coordinate
Definition: AkSpatialAudio.h:151
AK::SpatialAudio::ClearImageSources
AKSOUNDENGINE_API AKRESULT ClearImageSources(AkUniqueID in_AuxBusID=AK_INVALID_AUX_ID, AkGameObjectID in_gameObjectID=AK_INVALID_GAME_OBJECT)
DiffractionFlags_CalcEmitterVirtualPosition
@ DiffractionFlags_CalcEmitterVirtualPosition
An emitter that is not in the same room as the listener will have its apparent or virtual position ca...
Definition: AkSpatialAudio.h:48
AkPortalParams::BackRoom
AkRoomID BackRoom
Definition: AkSpatialAudio.h:335
AkDiffractionPathInfo::portals
AkPortalID portals[kMaxNodes]
Definition: AkSpatialAudio.h:262
AkGeometryParams::Triangles
AkTriangle * Triangles
Definition: AkSpatialAudio.h:455
AkSpatialAudioInitSettings::uNumberOfPrimaryRays
AkUInt32 uNumberOfPrimaryRays
The number of primary rays used in stochastic ray casting
Definition: AkSpatialAudio.h:79
AkVector::Z
AkReal32 Z
Z Position
Definition: AkTypes.h:320
AkSpatialAudioInitSettings::uMaxReflectionOrder
AkUInt32 uMaxReflectionOrder
Maximum reflection order [1, 4] - the number of 'bounces' in a reflection path. A higher reflection o...
Definition: AkSpatialAudio.h:80
AkTriangle::AkTriangle
AkTriangle()
Constructor
Definition: AkSpatialAudio.h:159
AkImageSourceSettings::SetName
void SetName(const char *in_pName)
Definition: AkSpatialAudio.h:125
AkSpatialAudioInitSettings
Initialization settings of the spatial audio module.
Definition: AkSpatialAudio.h:55
AkVertex
Vertex for a spatial audio mesh.
Definition: AkSpatialAudio.h:143
AkReflectionPathInfo::diffraction
AkReal32 diffraction[AK_MAX_REFLECTION_PATH_LENGTH]
Diffraction amount, normalized to the range [0,1]
Definition: AkSpatialAudio.h:235
AK_DEFAULT_DIFFR_SHADOW_DEGREES
#define AK_DEFAULT_DIFFR_SHADOW_DEGREES
Definition: AkSpatialAudioTypes.h:46
AK_MAX_REFLECTION_PATH_LENGTH
#define AK_MAX_REFLECTION_PATH_LENGTH
Definition: AkSpatialAudioTypes.h:44
AK::SpatialAudio::RemoveRoom
AKSOUNDENGINE_API AKRESULT RemoveRoom(AkRoomID in_RoomID)
AkVertex::AkVertex
AkVertex()
Constructor
Definition: AkSpatialAudio.h:145
AK::SpatialAudio::SetReflectionsOrder
AKSOUNDENGINE_API AKRESULT SetReflectionsOrder(AkUInt32 in_uReflectionsOrder, bool in_bUpdatePaths)
AkTriangle::point0
AkVertIdx point0
Index into the vertex table passed into AkGeometryParams that describes the first vertex of the trian...
Definition: AkSpatialAudio.h:174
AkSpatialAudioID
Base type for ID's used by Wwise spatial audio.
Definition: AkSpatialAudioTypes.h:100
AkReflectionPathInfo::numReflections
AkUInt32 numReflections
Number of reflections in the pathPoint[] array. Shadow zone diffraction does not count as a reflectio...
Definition: AkSpatialAudio.h:232
DiffractionFlags_UseObstruction
@ DiffractionFlags_UseObstruction
Use Wwise obstruction for dry-path diffraction. Dry-path diffraction is related to the angle off of a...
Definition: AkSpatialAudio.h:47
AK_INVALID_UNIQUE_ID
static const AkUniqueID AK_INVALID_UNIQUE_ID
Invalid unique 32-bit ID
Definition: AkTypes.h:94
AkGeometryParams::EnableDiffraction
bool EnableDiffraction
Switch to enable or disable geometric diffraction for this Geometry.
Definition: AkSpatialAudio.h:489
AkGeometryParams::NumSurfaces
AkSurfIdx NumSurfaces
Number of of AkTriangleInfo structures in in_pTriangleInfo and number of AkTriIdx's in in_infoMap.
Definition: AkSpatialAudio.h:478
AkReflectionPathInfo::level
AkReal32 level
Linear gain applied to image source.
Definition: AkSpatialAudio.h:238
AkRoomParams::WallOcclusion
AkReal32 WallOcclusion
Definition: AkSpatialAudio.h:414
AkDiffractionPathInfo::kMaxNodes
static const AkUInt32 kMaxNodes
Defines the maximum number of nodes that a user can retrieve information about. Longer paths will be ...
Definition: AkSpatialAudio.h:250
AkSpatialAudioInitSettings::fMovementThreshold
AkReal32 fMovementThreshold
Amount that an emitter or listener has to move to trigger a recalculation of reflections/diffraction....
Definition: AkSpatialAudio.h:77
AkGrowByPolicy_Legacy_SpatialAudio::GrowBy
static AkUInt32 GrowBy(AkUInt32)
Definition: AkSpatialAudio.h:40
AkImageSourceSettings::operator=
AkImageSourceSettings & operator=(const AkImageSourceSettings &src)
Operator =
Definition: AkSpatialAudio.h:110
AkDiffractionPathInfo::rooms
AkRoomID rooms[kMaxNodes+1]
Definition: AkSpatialAudio.h:267
AkGeometryParams::EnableDiffractionOnBoundaryEdges
bool EnableDiffractionOnBoundaryEdges
Switch to enable or disable geometric diffraction on boundary edges for this Geometry....
Definition: AkSpatialAudio.h:492
AK_INVALID_GAME_OBJECT
static const AkGameObjectID AK_INVALID_GAME_OBJECT
Invalid game object (may also mean all game objects)
Definition: AkTypes.h:93
AkReal32
float AkReal32
32-bit floating point
Definition: AkTypes.h:103
AkString::AllocCopy
AKRESULT AllocCopy()
Definition: AkString.h:79
AK::SpatialAudio::SetImageSource
AKSOUNDENGINE_API AKRESULT SetImageSource(AkImageSourceID in_srcID, const AkImageSourceSettings &in_info, AkUniqueID in_AuxBusID, AkRoomID in_roomID, AkGameObjectID in_gameObjectID)
AkImageSourceSettings::texture
AkImageSourceTexture texture
Acoustic texture that goes with this image source.
Definition: AkSpatialAudio.h:135
AkAcousticSurface::occlusion
AkReal32 occlusion
Definition: AkSpatialAudio.h:208
AkSpatialAudioInitSettings::uDiffractionFlags
AkUInt32 uDiffractionFlags
Enable or disable specific diffraction features. See AkDiffractionFlags.
Definition: AkSpatialAudio.h:71
AK_INVALID_SURFACE
#define AK_INVALID_SURFACE
Definition: AkSpatialAudioTypes.h:95
AK_INVALID_AUX_ID
static const AkAuxBusID AK_INVALID_AUX_ID
Invalid auxiliary bus ID (or no Aux bus ID)
Definition: AkTypes.h:100
DefaultDiffractionFlags
@ DefaultDiffractionFlags
Definition: AkSpatialAudio.h:50
AkGeometryParams::Vertices
AkVertex * Vertices
Number of vertices in Vertices.
Definition: AkSpatialAudio.h:465
AkAuxBusID
AkUInt32 AkAuxBusID
Auxilliary bus ID
Definition: AkTypes.h:70
AkSpatialAudioInitSettings::uMaxSoundPropagationDepth
AkUInt32 uMaxSoundPropagationDepth
Maximum number of portals that sound can propagate through; must be less than or equal to AK_MAX_SOUN...
Definition: AkSpatialAudio.h:70
AkVertIdx
AkUInt16 AkVertIdx
Definition: AkSpatialAudioTypes.h:88
AkVector
3D vector.
Definition: AkTypes.h:301
AK::SpatialAudio::QueryDiffractionPaths
AKSOUNDENGINE_API AKRESULT QueryDiffractionPaths(AkGameObjectID in_gameObjectID, AkVector &out_listenerPos, AkVector &out_emitterPos, AkDiffractionPathInfo *out_aPaths, AkUInt32 &io_uArraySize)
AkSpatialAudioInitSettings::bEnableDiffractionOnReflection
bool bEnableDiffractionOnReflection
Enable diffraction at the end/beginning of reflection paths. Diffraction on reflection causes reflect...
Definition: AkSpatialAudio.h:84
AkPortalParams::Transform
AkTransform Transform
Definition: AkSpatialAudio.h:308
AkPortalParams::Extent
AkVector Extent
Definition: AkSpatialAudio.h:313
AK::SpatialAudio::SetEarlyReflectionsVolume
AKSOUNDENGINE_API AKRESULT SetEarlyReflectionsVolume(AkGameObjectID in_gameObjectID, AkReal32 in_fSendVolume)
AkGeometryParams::AkGeometryParams
AkGeometryParams()
Constructor
Definition: AkSpatialAudio.h:448
AkDiffractionPathInfo::diffraction
AkReal32 diffraction
Definition: AkSpatialAudio.h:282
AkStringData::Term
void Term()
Definition: AkString.h:40
AkUInt32
uint32_t AkUInt32
Unsigned 32-bit integer
Definition: AkTypes.h:85
AK::SpatialAudio::SetPortalObstructionAndOcclusion
AKSOUNDENGINE_API AKRESULT SetPortalObstructionAndOcclusion(AkPortalID in_PortalID, AkReal32 in_fObstruction, AkReal32 in_fOcclusion)
AkSpatialAudioInitSettings::fDiffractionShadowDegrees
AkReal32 fDiffractionShadowDegrees
Definition: AkSpatialAudio.h:73
AkDiffractionPathInfo::obstructionValue
AkReal32 obstructionValue
Definition: AkSpatialAudio.h:293
AK::SpatialAudio::RemoveGeometry
AKSOUNDENGINE_API AKRESULT RemoveGeometry(AkGeometrySetID in_SetID)
AkImageSourceTexture::arTextureID
AkUniqueID arTextureID[AK_MAX_NUM_TEXTURE]
Unique IDs of the Acoustics Texture ShareSets used to filter this image source.
Definition: AkReflectGameData.h:70
AK::SpatialAudio::SetRoom
AKSOUNDENGINE_API AKRESULT SetRoom(AkRoomID in_RoomID, const AkRoomParams &in_Params)
AkRoomParams
Parameters passed to SetRoom
Definition: AkSpatialAudio.h:340
AK_MAX_SOUND_PROPAGATION_DEPTH
#define AK_MAX_SOUND_PROPAGATION_DEPTH
Definition: AkSpatialAudioTypes.h:45
AkTransform
Position and orientation of game objects.
Definition: AkTypes.h:325
AkGeometryParams
Parameters passed to SetGeometry
Definition: AkSpatialAudio.h:446
AkTriangle::point1
AkVertIdx point1
Index into the vertex table passed into AkGeometryParams that describes the second vertex of the tria...
Definition: AkSpatialAudio.h:177
AK::SpatialAudio::RegisterListener
AKSOUNDENGINE_API AKRESULT RegisterListener(AkGameObjectID in_gameObjectID)
AK::SpatialAudio::SetNumberOfPrimaryRays
AKSOUNDENGINE_API AKRESULT SetNumberOfPrimaryRays(AkUInt32 in_uNbPrimaryRays)
AK_DEFAULT_MOVEMENT_THRESHOLD
#define AK_DEFAULT_MOVEMENT_THRESHOLD
Definition: AkSpatialAudioTypes.h:48

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