0be50c119d
Should make the code easier to read.
145 lines
4.2 KiB
C++
145 lines
4.2 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#include "Benchmarker.h"
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#include <vtkm/TypeTraits.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/DeviceAdapterAlgorithm.h>
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#include <vtkm/cont/Timer.h>
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#include <vtkm/cont/testing/MakeTestDataSet.h>
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#include <vtkm/rendering/Camera.h>
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#include <vtkm/rendering/raytracing/Ray.h>
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#include <vtkm/rendering/raytracing/RayTracer.h>
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#include <vtkm/rendering/raytracing/SphereIntersector.h>
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#include <vtkm/rendering/raytracing/TriangleExtractor.h>
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#include <vtkm/exec/FunctorBase.h>
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#include <vtkm/cont/ColorTable.hxx>
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#include <sstream>
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#include <string>
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#include <vector>
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using namespace vtkm::benchmarking;
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namespace vtkm
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{
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namespace benchmarking
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{
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template <typename Precision, typename DeviceAdapter>
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struct BenchRayTracing
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{
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vtkm::rendering::raytracing::RayTracer Tracer;
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vtkm::rendering::raytracing::Camera RayCamera;
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vtkm::cont::ArrayHandle<vtkm::Id4> Indices;
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vtkm::rendering::raytracing::Ray<Precision> Rays;
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vtkm::cont::CoordinateSystem Coords;
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vtkm::cont::DataSet Data;
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VTKM_CONT ~BenchRayTracing() {}
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VTKM_CONT BenchRayTracing()
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{
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vtkm::Id3 dims(128, 128, 128);
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vtkm::cont::testing::MakeTestDataSet maker;
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Data = maker.Make3DUniformDataSet3(dims);
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Coords = Data.GetCoordinateSystem();
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vtkm::rendering::Camera camera;
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vtkm::Bounds bounds = Data.GetCoordinateSystem().GetBounds();
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camera.ResetToBounds(bounds);
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vtkm::cont::DynamicCellSet cellset = Data.GetCellSet();
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vtkm::rendering::raytracing::TriangleExtractor triExtractor;
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triExtractor.ExtractCells(cellset);
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auto triIntersector = std::make_shared<vtkm::rendering::raytracing::TriangleIntersector>(
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vtkm::rendering::raytracing::TriangleIntersector());
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triIntersector->SetData(Coords, triExtractor.GetTriangles());
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Tracer.AddShapeIntersector(triIntersector);
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vtkm::rendering::CanvasRayTracer canvas(1920, 1080);
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RayCamera.SetParameters(camera, canvas);
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RayCamera.CreateRays(Rays, Coords.GetBounds());
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Rays.Buffers.at(0).InitConst(0.f);
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vtkm::cont::Field field = Data.GetField("pointvar");
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vtkm::Range range = field.GetRange().GetPortalConstControl().Get(0);
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Tracer.SetField(field, range);
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vtkm::cont::ArrayHandle<vtkm::Vec4ui_8> temp;
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vtkm::cont::ColorTable table("cool to warm");
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table.Sample(100, temp);
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vtkm::cont::ArrayHandle<vtkm::Vec4f_32> colors;
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colors.Allocate(100);
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auto portal = colors.GetPortalControl();
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auto colorPortal = temp.GetPortalConstControl();
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constexpr vtkm::Float32 conversionToFloatSpace = (1.0f / 255.0f);
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for (vtkm::Id i = 0; i < 100; ++i)
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{
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auto color = colorPortal.Get(i);
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vtkm::Vec4f_32 t(color[0] * conversionToFloatSpace,
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color[1] * conversionToFloatSpace,
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color[2] * conversionToFloatSpace,
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color[3] * conversionToFloatSpace);
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portal.Set(i, t);
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}
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Tracer.SetColorMap(colors);
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Tracer.Render(Rays);
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}
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VTKM_CONT
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vtkm::Float64 operator()()
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{
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vtkm::cont::Timer timer{ DeviceAdapter() };
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timer.Start();
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RayCamera.CreateRays(Rays, Coords.GetBounds());
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try
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{
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Tracer.Render(Rays);
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}
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catch (vtkm::cont::ErrorBadValue& e)
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{
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std::cout << "exception " << e.what() << "\n";
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}
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return timer.GetElapsedTime();
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}
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VTKM_CONT
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std::string Description() const { return "A ray tracing benchmark"; }
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};
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VTKM_MAKE_BENCHMARK(RayTracing, BenchRayTracing);
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}
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} // end namespace vtkm::benchmarking
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int main(int argc, char* argv[])
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{
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auto opts =
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vtkm::cont::InitializeOptions::DefaultAnyDevice | vtkm::cont::InitializeOptions::Strict;
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auto config = vtkm::cont::Initialize(argc, argv, opts);
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VTKM_RUN_BENCHMARK(RayTracing, vtkm::ListTagBase<vtkm::Float32>(), config.Device);
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return 0;
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}
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