public void Run(int numRays)
{
sw.Restart();
RCUCApi.rcu_raycast_manager_run(rcuRaycastManager, rayDataArray, intersectionDataArray, (uint)numRays);
sw.Stop();
UnityEngine.Debug.Log("RCU: Throwing the rays took " + sw.Elapsed.ToString());
}
public void ReleaseRaycastEnvironment()
{
meshFilterArray = null;
rayDataArray = null;
intersectionDataArray = null;
RCUCApi.rcu_destroy_raycast_manager(rcuRaycastManager);
RCUCApi.rcu_destroy_scene(rcuScene);
RCUCApi.rcu_destroy_allocator(rcuAllocator);
}
public void SetupRaycastEnvironment(MeshRenderer[] meshRendererArray, int maxNumRays)
{
// Initialize the stopwatch
sw.Restart();
// Allocate the ray arrays
ResetRayCount(maxNumRays);
// Create all the native pointers
rcuAllocator = RCUCApi.rcu_create_allocator();
rcuScene = RCUCApi.rcu_create_scene(rcuAllocator);
rcuRaycastManager = RCUCApi.rcu_create_raycast_manager(rcuAllocator);
// Array that holds the matrix
float[] transformMatrix = new float[16];
int maxVertCount = 0;
int numGameObjects = meshRendererArray.Length;
int numMeshFilters = 0;
for (int geoIdx = 0; geoIdx < numGameObjects; ++geoIdx)
{
// Grab the next mesh renderer
MeshRenderer meshRenderer = meshRendererArray[geoIdx];
// Grab the next game object
GameObject gameObject = meshRenderer.gameObject;
// Grab the mesh filter
MeshFilter meshFilter = gameObject.GetComponent <MeshFilter>();
if (meshFilter != null && meshFilter.sharedMesh)
{
// Fetch the mesh to push
Mesh currentMesh = meshFilter.sharedMesh;
// Contrbute to the max
maxVertCount = Math.Max(currentMesh.vertexCount, maxVertCount);
// Increase the mesh filter count
numMeshFilters++;
}
}
// Create the mesh filter array
meshFilterArray = new MeshFilter[numMeshFilters];
// Allocate the array for the marshaling
float[] vertArray = new float[3 * maxVertCount];
float[] normalDataArray = new float[3 * maxVertCount];
float[] texDataCoord = new float[2 * maxVertCount];
int meshFilterIterator = 0;
// Let's now push all the geometry to the plugin
for (int geoIdx = 0; geoIdx < numGameObjects; ++geoIdx)
{
// Grab the next mesh renderer
MeshRenderer meshRenderer = meshRendererArray[geoIdx];
// Grab the next game object
GameObject gameObject = meshRenderer.gameObject;
// Grab the mesh filter
MeshFilter meshFilter = gameObject.GetComponent <MeshFilter>();
if (meshFilter != null && meshFilter.sharedMesh)
{
// Set it in the array
meshFilterArray[meshFilterIterator] = meshFilter;
// Fetch the mesh to push
Mesh currentMesh = meshFilter.sharedMesh;
uint subMeshCount = (uint)currentMesh.subMeshCount;
for (uint subMeshIdx = 0; subMeshIdx < subMeshCount; ++subMeshIdx)
{
Matrix4x4 transform = gameObject.transform.localToWorldMatrix.transpose;
for (int i = 0; i < 16; ++i)
{
transformMatrix[i] = transform[i];
}
// Flatten the position array
Vector3[] positionArray = currentMesh.vertices;
uint numVerts = (uint)positionArray.Length;
for (int vIdx = 0; vIdx < numVerts; ++vIdx)
{
vertArray[3 * vIdx] = positionArray[vIdx].x;
vertArray[3 * vIdx + 1] = positionArray[vIdx].y;
vertArray[3 * vIdx + 2] = positionArray[vIdx].z;
}
Vector3[] normalArray = currentMesh.normals;
uint numNormals = (uint)normalArray.Length;
for (int nIdx = 0; nIdx < numNormals; ++nIdx)
{
normalDataArray[3 * nIdx] = normalArray[nIdx].x;
normalDataArray[3 * nIdx + 1] = normalArray[nIdx].y;
normalDataArray[3 * nIdx + 2] = normalArray[nIdx].z;
}
Vector2[] uvArray = currentMesh.uv;
int numTexCoords = uvArray.Length;
if (numTexCoords > 0)
{
for (int tIdx = 0; tIdx < numTexCoords; ++tIdx)
{
texDataCoord[2 * tIdx] = uvArray[tIdx].x;
texDataCoord[2 * tIdx + 1] = uvArray[tIdx].y;
}
}
// Flatten the index array
int[] subMeshIndices = currentMesh.GetIndices((int)subMeshIdx);
uint numTriangles = (uint)(subMeshIndices.Length / 3);
// Push the geometry to the scene
RCUCApi.rcu_scene_append_geometry(rcuScene, (uint)meshFilterIterator, subMeshIdx, vertArray, normalDataArray, texDataCoord, numVerts, subMeshIndices, numTriangles, transformMatrix);
}
meshFilterIterator++;
}
}
sw.Stop();
UnityEngine.Debug.Log("RCU: Pushing data to the plugin took " + sw.Elapsed.ToString());
// Init the raycast manager
sw.Restart();
RCUCApi.rcu_raycast_manager_setup(rcuRaycastManager, rcuScene);
sw.Stop();
UnityEngine.Debug.Log("RCU: Initializing the raycasting structures took " + sw.Elapsed.ToString());
}
