public ClIntersectionDevice(RayEngineScene scene, bool lowLatency, int index)
: base(scene) {
wallclock = new Stopwatch();
this.todoRayBuffers = new ConcurrentQueue<RayBuffer>();
this.doneRayBuffers = new ConcurrentQueue<RayBuffer>();
this.started = false;
clContext = new ClDeviceContext() { KernelSrc = Kernels.PbrtBVHKernel };
clContext.Initialize();
clContext.SetupDevice("Intersect");
var rayBufferSize = lowLatency ? (RayBuffer.RayBufferSize / 8) : RayBuffer.RayBufferSize;
var sceneVertices = scene.Vertices.ToArray();
var sceneTriangles = scene.Triangles.ToArray();
Tracer.TraceLine("Vertices Data Size {0:F3} MBytes", (sceneVertices.Length * 12f) / (1024f * 1024f));
Tracer.TraceLine("Indexes Data Size {0:F3} MBytes", (sceneTriangles.Length * 12f) / (1024f * 1024f));
var da = new BvhDataAdapter(scene);
var st = DateTime.UtcNow;
TriangleDataInfo[] triData = null;
var treeData = da.BuildLData(out triData);
//scene.Triangles = triData.ToList();
var dc = treeData.Count(item => item.IsLeaf);
Tracer.TraceLine("Bvh Leaf nodes {0}", dc);
verts = new ComputeBuffer<Point>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, sceneVertices);
tris = new ComputeBuffer<TriangleInfo>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, triData.Select(item=>item.GetInfo()).ToArray());
Tracer.TraceLine("BVH Data Size {0:F3} MBytes" ,(treeData.Length*32f) / (1024f*1024f));
tree = new ComputeBuffer<LNode>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, treeData);
rays = new ComputeBuffer<RayData>(clContext.context, ComputeMemoryFlags.ReadOnly, rayBufferSize);
rayHits = new ComputeBuffer<RayHit>(clContext.context, ComputeMemoryFlags.WriteOnly, rayBufferSize);
Tracer.TraceLine("Bvh Build and Load Time {0}", DateTime.UtcNow - st);
clContext.kernel.SetMemoryArgument(0, rays);
clContext.kernel.SetMemoryArgument(1, rayHits);
clContext.kernel.SetMemoryArgument(2, verts);
clContext.kernel.SetMemoryArgument(3, tris);
clContext.kernel.SetValueArgument(4, (uint)tris.Count);
clContext.kernel.SetValueArgument(5, (uint)tree.Count);
clContext.kernel.SetMemoryArgument(6, tree);
}
public TwoLevelOpenCLIntersectionDevice(RayEngineScene scene, bool lowLatency, int index)
: base(scene) {
wallclock = new Stopwatch();
this.todoRayBuffers = new ConcurrentQueue<RayBuffer>();
this.doneRayBuffers = new ConcurrentQueue<RayBuffer>();
this.started = false;
var device = ComputePlatform.Platforms[0].Devices[0];
clContext = new ClDeviceContext() { KernelSrc = Kernels.LuxBVHKernel2L };
clContext.Initialize();
clContext.SetupDevice("Intersect","TLIntersect");
var rayBufferSize = lowLatency ? (RayBuffer.RayBufferSize / 8) : RayBuffer.RayBufferSize;
var sceneVertices = scene.Vertices.ToArray();
var sceneTriangles = scene.Triangles.Select(item=>item.GetInfo()).ToArray();
Tracer.TraceLine("Vertices Data Size {0:F3} MBytes", (sceneVertices.Length * 12f) / (1024f * 1024f));
Tracer.TraceLine("Indexes Data Size {0:F3} MBytes", (sceneTriangles.Length * 12f) / (1024f * 1024f));
verts = new ComputeBuffer<Point>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, sceneVertices);
tris = new ComputeBuffer<TriangleInfo>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, sceneTriangles);
tlhits = new ComputeBuffer<TLHit>(clContext.context, ComputeMemoryFlags.WriteOnly, rayBufferSize);
var st = DateTime.UtcNow;
var da = new BvhDataAdapter(scene);
var meshes = scene.Meshes.Cast<TriangleMeshInfo>().ToArray();
List<GpuSmitsBVHNode> bottomLevelData = new List<GpuSmitsBVHNode>();
foreach (var triangleMesh in meshes)
{
var data = da.BuildData(triangleMesh);
bottomLevelData.AddRange(data);
triangleMesh.MeshProfile.BvhData = data;
}
var bounds = meshes.Select(item => item.Bounds).ToArray();
var topLevelData = da.BuildTopData(bounds);
long bvhOffset = 0;
long to = 0;
List<Primitive> ps = new List<Primitive>();
foreach (var triangleMeshInfo in meshes)
{
ps.Add(new Primitive()
{
bvhOffset = (uint) bvhOffset,
index = (uint) Math.Max(0,to-1)
});
to += triangleMeshInfo.EndTriangle;
bvhOffset += triangleMeshInfo.MeshProfile.BvhData.Length-1;
}
topLeveltree = new ComputeBuffer<GpuSmitsBVHNode>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, topLevelData);
bottomLevelTrees = new ComputeBuffer<GpuSmitsBVHNode>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, bottomLevelData.ToArray());
this.prims = new ComputeBuffer<Primitive>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, ps.ToArray());
//tree = new ComputeBuffer<GpuBVHNode>(clContext.context, ComputeMemoryFlags.ReadOnly | ComputeMemoryFlags.CopyHostPointer, treeData);
rays = new ComputeBuffer<RayData>(clContext.context, ComputeMemoryFlags.ReadWrite, rayBufferSize);
rayHits = new ComputeBuffer<RayHit>(clContext.context, ComputeMemoryFlags.ReadWrite, rayBufferSize);
Tracer.TraceLine("Bvh Build and Load Time {0}", DateTime.UtcNow - st);
BottomLevelKernel.SetMemoryArgument(0, rays);
BottomLevelKernel.SetMemoryArgument(1, rayHits);
BottomLevelKernel.SetMemoryArgument(2, verts);
BottomLevelKernel.SetMemoryArgument(3, prims);
BottomLevelKernel.SetMemoryArgument(4, tris);
BottomLevelKernel.SetValueArgument(5, (uint)tris.Count);
BottomLevelKernel.SetValueArgument(6, (uint)bottomLevelTrees.Count);//nodeCount
BottomLevelKernel.SetMemoryArgument(7, bottomLevelTrees);
TopLevelKernel.SetMemoryArgument(0, rays);
TopLevelKernel.SetMemoryArgument(1, tlhits);
TopLevelKernel.SetValueArgument(2, (uint)topLevelData.Length);
TopLevelKernel.SetMemoryArgument(3, topLeveltree);
//clContext.kernel.SetValueArgument(5, (uint)tree.Count);
//clContext.kernel.SetMemoryArgument(6, tree);
}
