/// Generates an acoustic mesh from a source object's mesh filter. Returns null if the
/// generation failed.
public static ResonanceAudioAcousticMesh GenerateFromMeshFilter(MeshFilter meshFilter,
Shader surfaceMaterialShader)
{
var sourceObject = meshFilter.gameObject;
var sourceMesh = meshFilter.sharedMesh;
var sourceTriangles = sourceMesh.triangles;
int numTriangleIndices = sourceTriangles.Length;
int numVertices = sourceMesh.vertexCount;
ResonanceAudioAcousticMesh acousticMesh = new ResonanceAudioAcousticMesh();
int[] triangles = null;
Vector3[] vertices = null;
acousticMesh.InitializeMesh(numTriangleIndices, numVertices, out triangles, out vertices);
// Duplicate the source object's mesh. The vertices are transformed to world space.
acousticMesh.FillVerticesAndTrianglesFromMesh(sourceMesh, sourceObject.transform, ref vertices,
ref triangles);
acousticMesh.mesh.vertices = vertices;
acousticMesh.mesh.triangles = triangles;
acousticMesh.mesh.RecalculateNormals();
acousticMesh.InitializeSubMeshMaterials();
acousticMesh.InitializeVisualizationMaterial(surfaceMaterialShader);
acousticMesh.sourceObject = sourceObject;
return(acousticMesh);
}
/// Generates an acoustic mesh from a terrain.
public static ResonanceAudioAcousticMesh GenerateFromTerrain(Terrain terrain,
Shader surfaceMaterialShader)
{
var terrainData = terrain.terrainData;
var heightMap = terrainData.GetHeights(0, 0, terrainData.heightmapResolution,
terrainData.heightmapResolution);
// First sub-sample the height map.
int m;
int n;
int subSampledNumTriangleIndices;
int subSampleStep;
SubSampleHeightMap(heightMap.GetLength(0), heightMap.GetLength(1), out m, out n,
out subSampleStep, out subSampledNumTriangleIndices);
ResonanceAudioAcousticMesh acousticMesh = new ResonanceAudioAcousticMesh();
int[] triangles;
Vector3[] vertices;
acousticMesh.InitializeMesh(subSampledNumTriangleIndices, subSampledNumTriangleIndices,
out triangles, out vertices);
// Create triangles and vertices from the height map. The vertices are transformed to world
// space.
acousticMesh.FillTrianglesAndVerticesFromHeightMap(
terrain.transform.position, terrainData.size, heightMap, m, n, subSampleStep,
ref triangles, ref vertices);
acousticMesh.mesh.vertices = vertices;
acousticMesh.mesh.triangles = triangles;
acousticMesh.mesh.RecalculateNormals();
acousticMesh.InitializeSubMeshMaterials();
acousticMesh.InitializeVisualizationMaterial(surfaceMaterialShader);
acousticMesh.sourceObject = terrain.gameObject;
return(acousticMesh);
}
/// Generates an acoustic mesh from a source object's mesh filter. Returns null if the
/// generation failed.
public static ResonanceAudioAcousticMesh GenerateFromMeshFilter(MeshFilter meshFilter,
Shader surfaceMaterialShader)
{
var sourceObject = meshFilter.gameObject;
var sourceMesh = meshFilter.sharedMesh;
if (sourceMesh == null)
{
Debug.LogWarning("GameObject: " + sourceObject.name + " has no mesh and will not be " +
"included in reverb baking.");
return(null);
}
int numTriangleIndices = CountTriangleIndices(sourceMesh);
int numVertices = sourceMesh.vertexCount;
ResonanceAudioAcousticMesh acousticMesh = new ResonanceAudioAcousticMesh();
int[] triangles = null;
Vector3[] vertices = null;
acousticMesh.InitializeMesh(numTriangleIndices, numVertices, out triangles, out vertices);
// Duplicate the source object's mesh. The vertices are transformed to world space.
acousticMesh.FillVerticesAndTrianglesFromMesh(sourceMesh, sourceObject.transform, ref vertices,
ref triangles);
acousticMesh.mesh.vertices = vertices;
acousticMesh.mesh.triangles = triangles;
acousticMesh.mesh.RecalculateNormals();
acousticMesh.InitializeSubMeshMaterials();
acousticMesh.InitializeVisualizationMaterial(surfaceMaterialShader);
acousticMesh.sourceObject = sourceObject;
return(acousticMesh);
}