private void InitAudioVisualizer()
{
totalTriangles = (int)sampleMesh.GetIndexCount(0) / 3;
audioProfile.bandSize = totalTriangles;
audioProcessor = new AudioProcessor(ref audioSource, ref audioProfile);
MeshUtil.DeepCopyMesh(ref sampleMesh, out modifiedSampleMesh);
audioVFX.SetMesh(VFXPropertyId.mesh_sampleMesh, modifiedSampleMesh);
audioVFX.SetInt(VFXPropertyId.int_triangleCount, totalTriangles);
modifiedSampleMesh.MarkDynamic();
meshFilter.mesh = modifiedSampleMesh;
// transferring mesh data to native arrays to be processed parallely
Mesh.MeshDataArray sampleMeshData = Mesh.AcquireReadOnlyMeshData(sampleMesh);
normals = MeshUtil.NativeGetNormals(sampleMeshData[0], Allocator.Persistent);
normals.AsReadOnly();
triangles = MeshUtil.NativeGetIndices(sampleMeshData[0], Allocator.Persistent);
triangles.AsReadOnly();
vertices = MeshUtil.NativeGetVertices(sampleMeshData[0], Allocator.Persistent);
// audio processing attributes
samples = new NativeArray <float>(audioProfile.sampleSize, Allocator.Persistent);
bandDistribution = new NativeArray <int>(audioProfile.bandSize + 1, Allocator.Persistent);
bandDistribution.CopyFrom(audioProcessor.bandDistribution);
bandDistribution.AsReadOnly();
prevBands = new NativeArray <float>(totalTriangles, Allocator.Persistent);
prevBands.CopyFrom(prevBands);
bandVelocities = new NativeArray <float>(totalTriangles, Allocator.Persistent);
bandVelocities.CopyFrom(bandVelocities);
sampleMeshData.Dispose();
if (seed != 0)
{
// if randomized is turned on
int[] seqArray = MathUtil.GenerateSeqArray(totalTriangles);
MathUtil.ShuffleArray <int>(ref seqArray, seed);
// triangle indices
NativeArray <int> trianglesCopy = new NativeArray <int>(triangles, Allocator.Temp);
for (int s = 0; s < seqArray.Length; s++)
{
triangles[s * 3] = trianglesCopy[seqArray[s] * 3];
triangles[s * 3 + 1] = trianglesCopy[seqArray[s] * 3 + 1];
triangles[s * 3 + 2] = trianglesCopy[seqArray[s] * 3 + 2];
}
trianglesCopy.Dispose();
}
}
