public OptixIntersectionDevice(IRayEngineScene scene, bool lowLatency = false) : base(scene)
{
this.lowLatency = lowLatency;
Context = new Context { CpuNumThreads = 4, RayTypeCount = 1, EntryPointCount = 1 };
var rayBufferDesc = new BufferDesc()
{
Format = Format.User,
Width = (uint)(lowLatency ? RayBuffer.RayBufferSize / 8 : RayBuffer.RayBufferSize),
Type = BufferType.InputOutput,
ElemSize = (uint)Marshal.SizeOf(typeof(RayData))
};
var rayHitBufferDesc = new BufferDesc()
{
Format = Format.User,
Width = (uint)(lowLatency ? RayBuffer.RayBufferSize / 8 : RayBuffer.RayBufferSize),
Type = BufferType.InputOutput,
ElemSize = (uint)Marshal.SizeOf(typeof(RayHit))
};
this.todoRayBuffers = new InputRayBufferCollection();
this.doneRayBuffers = new OutputRayBufferCollection();
this.started = false;
Rays = new DeviceBuffer(Context, rayBufferDesc);
RayHits = new DeviceBuffer(Context, rayHitBufferDesc);
Context["rayHits"].Set(RayHits);
Context["rays"].Set(Rays);
Builder = AccelBuilder.TriangleKdTree;
Traverser = AccelTraverser.KdTree;
GeoGroup = new GeometryGroup(Context);
this.SetScene(scene);
}
public OptixTraverseIntersectionDevice(IRayEngineScene scene, bool lowLatency = false)
: base(scene)
{
this.lowLatency = lowLatency;
Context = new Context { CpuNumThreads = 4, RayTypeCount = 1, EntryPointCount = 1 };
this.todoRayBuffers = new InputRayBufferCollection();
this.doneRayBuffers = new OutputRayBufferCollection();
this.started = false;
this.SetScene(scene);
}
public OptixPrimeIntersectionDevice(IRayEngineScene scene, bool lowLatency = false)
: base(scene)
{
this.lowLatency = lowLatency;
Context = new Context { CpuNumThreads = 4, RayTypeCount = 1, EntryPointCount = 1 };
trav = new OptixPrime(Context, QueryType.ClosestHit, RayFormat.OriginDirectionMinMaxInterleaved, TriFormat.Mesh, TraversalOutput.Normal, InitOptions.GpuOnly);
this.todoRayBuffers = new InputRayBufferCollection();
this.doneRayBuffers = new OutputRayBufferCollection();
this.started = false;
this.SetScene(scene);
}
public DadeCudaIntersectionDevice(RayEngineScene scene, NVContext ctx)
: base(scene)
{
this.scene = scene;
wallclock = new Stopwatch();
this.todoRayBuffers = new InputRayBufferCollection();
this.doneRayBuffers = new OutputRayBufferCollection();
this.started = false;
if (ctx != null)
{
this.cudaContext = ctx;
}
else
{
this.cudaContext = new NVContext() { Context = new CudaContext(CudaContext.GetMaxGflopsDeviceId()) };
}
using (var sr = new StreamReader(@"G:\Git\RayDen\CudaMegaRay\x64\Release\Intersection.cu.ptx"))
{
intersectKernel = cudaContext.Context.LoadKernelPTX(sr.BaseStream, "Intersect");
}
this.rays = new CudaDeviceVariable<RayData>(RayBuffer.RayBufferSize);
this.hits = new CudaDeviceVariable<RayHit>(RayBuffer.RayBufferSize);
verts = scene.Vertices.ToArray();
tris=scene.Triangles.Select(i => i.GetInfo()).ToArray();
if (GlobalConfiguration.Instance.UseSceneCaching && scene.Cache != null)
{
bvh = scene.Cache.BvhData;
nodesCount = scene.Cache.BvhData.Length;
}
else
{
var da = new BvhDataAdapter(scene);
var treeData = da.BuildData();
bvh = treeData;
nodesCount = treeData.Length;
}
Tracer.TraceLine("BVH Data Size {0:F3} MBytes", (nodesCount * 32f) / (1024f * 1024f));
}
public override void Stop()
{
wallclock.Stop();
started = false;
wallclock.Restart();
if (intersectionTask.Status == TaskStatus.Running)
{
this.cancelToken.Cancel();
Tracer.TraceLine("Attempting to stop Optix intersection device");
while ((intersectionTask.Status == TaskStatus.Running))
{
this.cancelToken.Cancel();
if (wallclock.Elapsed > new TimeSpan(0, 0, 30))
{
break;
}
}
intersectionTask.Dispose();
intersectionTask = null;
}
this.todoRayBuffers = new InputRayBufferCollection();
this.doneRayBuffers = new OutputRayBufferCollection();
}
public void Stop()
{
wallclock.Stop();
started = false;
if (intersectionTask.Status == TaskStatus.Running)
{
cancelToken.Cancel();
while ((intersectionTask.Status == TaskStatus.Running))
{
}
intersectionTask.Dispose();
intersectionTask = null;
}
this.todoRayBuffers = new InputRayBufferCollection<RayBuffer>();
this.doneRayBuffers = new OutputRayBufferCollection<RayBuffer>();
}
