/// <summary>
/// Sends the mesh filter's triangles and their acoustic texture to Spatial Audio
/// </summary>
/// <param name="acousticTexture"></param>
/// <param name="meshFilter"></param>
public static void AddGeometrySet(AK.Wwise.AcousticTexture acousticTexture, UnityEngine.MeshFilter meshFilter, ulong roomID, bool enableDiffraction, bool enableDiffractionOnBoundaryEdges)
{
if (!AkSoundEngine.IsInitialized())
{
return;
}
if (meshFilter == null)
{
UnityEngine.Debug.Log("AddGeometrySet(): No mesh found!");
}
else
{
var mesh = meshFilter.sharedMesh;
var vertices = mesh.vertices;
var triangles = mesh.triangles;
// Remove duplicate vertices
var vertRemap = new int[vertices.Length];
var uniqueVerts = new System.Collections.Generic.List <UnityEngine.Vector3>();
var vertDict = new System.Collections.Generic.Dictionary <UnityEngine.Vector3, int>();
for (var v = 0; v < vertices.Length; ++v)
{
int vertIdx = 0;
if (!vertDict.TryGetValue(vertices[v], out vertIdx))
{
vertIdx = uniqueVerts.Count;
uniqueVerts.Add(vertices[v]);
vertDict.Add(vertices[v], vertIdx);
}
vertRemap[v] = vertIdx;
}
int vertexCount = uniqueVerts.Count;
using (var surfaceArray = new AkAcousticSurfaceArray(1))
{
var surface = surfaceArray[0];
surface.textureID = acousticTexture.Id;
surface.reflectorChannelMask = unchecked ((uint)-1);
surface.strName = meshFilter.gameObject.name;
using (var vertexArray = new AkVertexArray(vertexCount))
{
for (var v = 0; v < vertexCount; ++v)
{
var point = meshFilter.transform.TransformPoint(uniqueVerts[v]);
using (var akVert = vertexArray[v])
{
akVert.X = point.x;
akVert.Y = point.y;
akVert.Z = point.z;
}
}
var numTriangles = mesh.triangles.Length / 3;
using (var triangleArray = new AkTriangleArray(numTriangles))
{
for (var i = 0; i < numTriangles; ++i)
{
using (var triangle = triangleArray[i])
{
triangle.point0 = (ushort)vertRemap[triangles[3 * i + 0]];
triangle.point1 = (ushort)vertRemap[triangles[3 * i + 1]];
triangle.point2 = (ushort)vertRemap[triangles[3 * i + 2]];
triangle.surface = (ushort)0;
}
}
AkSoundEngine.SetGeometry(GetAkGeometrySetID(meshFilter), triangleArray, (uint)triangleArray.Count(), vertexArray, (uint)vertexArray.Count(), surfaceArray, (uint)surfaceArray.Count(), roomID, enableDiffraction, enableDiffractionOnBoundaryEdges);
}
}
}
}
}
private static void SetGeometryFromMesh(
UnityEngine.Mesh mesh,
AK.Wwise.AcousticTexture[] acousticTextures,
float[] occlusionValues,
UnityEngine.Transform transform,
ulong geometryID,
ulong associatedRoomID,
bool enableDiffraction,
bool enableDiffractionOnBoundaryEdges,
string name = "")
{
var vertices = mesh.vertices;
// Remove duplicate vertices
var vertRemap = new int[vertices.Length];
var uniqueVerts = new System.Collections.Generic.List <UnityEngine.Vector3>();
var vertDict = new System.Collections.Generic.Dictionary <UnityEngine.Vector3, int>();
for (var v = 0; v < vertices.Length; ++v)
{
int vertIdx = 0;
if (!vertDict.TryGetValue(vertices[v], out vertIdx))
{
vertIdx = uniqueVerts.Count;
uniqueVerts.Add(vertices[v]);
vertDict.Add(vertices[v], vertIdx);
}
vertRemap[v] = vertIdx;
}
int vertexCount = uniqueVerts.Count;
var vertexArray = new UnityEngine.Vector3[vertexCount];
for (var v = 0; v < vertexCount; ++v)
{
var point = transform.TransformPoint(uniqueVerts[v]);
vertexArray[v].x = point.x;
vertexArray[v].y = point.y;
vertexArray[v].z = point.z;
}
int surfaceCount = mesh.subMeshCount;
var numTriangles = mesh.triangles.Length / 3;
if ((mesh.triangles.Length % 3) != 0)
{
UnityEngine.Debug.LogFormat("SetGeometryFromMesh({0}): Wrong number of triangles", mesh.name);
}
using (var surfaceArray = new AkAcousticSurfaceArray(surfaceCount))
using (var triangleArray = new AkTriangleArray(numTriangles))
{
int triangleArrayIdx = 0;
for (var s = 0; s < surfaceCount; ++s)
{
var surface = surfaceArray[s];
var triangles = mesh.GetTriangles(s);
var triangleCount = triangles.Length / 3;
if ((triangles.Length % 3) != 0)
{
UnityEngine.Debug.LogFormat("SetGeometryFromMesh({0}): Wrong number of triangles in submesh {1}", mesh.name, s);
}
AK.Wwise.AcousticTexture acousticTexture = null;
float occlusionValue = 1.0f;
if (s < acousticTextures.Length)
{
acousticTexture = acousticTextures[s];
}
if (s < occlusionValues.Length)
{
occlusionValue = occlusionValues[s];
}
surface.textureID = acousticTexture == null ? AK.Wwise.AcousticTexture.InvalidId : acousticTexture.Id;
surface.occlusion = occlusionValue;
surface.strName = name + "_" + mesh.name + "_" + s;
for (var i = 0; i < triangleCount; ++i)
{
var triangle = triangleArray[triangleArrayIdx];
triangle.point0 = (ushort)vertRemap[triangles[3 * i + 0]];
triangle.point1 = (ushort)vertRemap[triangles[3 * i + 1]];
triangle.point2 = (ushort)vertRemap[triangles[3 * i + 2]];
triangle.surface = (ushort)s;
if (triangle.point0 != triangle.point1 && triangle.point0 != triangle.point2 && triangle.point1 != triangle.point2)
{
++triangleArrayIdx;
}
else
{
UnityEngine.Debug.LogFormat("SetGeometryFromMesh({0}): Skipped degenerate triangle({1}, {2}, {3}) in submesh {4}", mesh.name, 3 * i + 0, 3 * i + 1, 3 * i + 2, s);
}
}
}
if (triangleArrayIdx > 0)
{
AkSoundEngine.SetGeometry(
geometryID,
triangleArray,
(uint)triangleArrayIdx,
vertexArray,
(uint)vertexArray.Length,
surfaceArray,
(uint)surfaceArray.Count(),
associatedRoomID,
enableDiffraction,
enableDiffractionOnBoundaryEdges);
}
else
{
UnityEngine.Debug.LogFormat("SetGeometry({0}): No valid triangle was found. Geometry was not set", mesh.name);
}
}
}
