vtk-m/vtkm/rendering/testing/UnitTestMapperVolume.cxx
2023-05-03 07:14:41 -06:00

114 lines
3.6 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
//
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//============================================================================
#include <vtkm/cont/testing/MakeTestDataSet.h>
#include <vtkm/cont/testing/Testing.h>
#include <vtkm/filter/field_conversion/CellAverage.h>
#include <vtkm/io/VTKDataSetReader.h>
#include <vtkm/rendering/Actor.h>
#include <vtkm/rendering/Canvas.h>
#include <vtkm/rendering/CanvasRayTracer.h>
#include <vtkm/rendering/MapperVolume.h>
#include <vtkm/rendering/Scene.h>
#include <vtkm/rendering/View3D.h>
#include <vtkm/rendering/testing/RenderTest.h>
#include <vtkm/source/Tangle.h>
namespace
{
void TestRectilinear()
{
vtkm::cont::ColorTable colorTable = vtkm::cont::ColorTable::Preset::Inferno;
colorTable.AddPointAlpha(0.0, 0.01f);
colorTable.AddPointAlpha(0.4, 0.01f);
colorTable.AddPointAlpha(0.7, 0.2f);
colorTable.AddPointAlpha(1.0, 0.5f);
vtkm::rendering::testing::RenderTestOptions options;
options.Mapper = vtkm::rendering::testing::MapperType::Volume;
options.AllowAnyDevice = false;
options.ColorTable = colorTable;
vtkm::cont::DataSet rectDS, unsDS;
std::string rectfname = vtkm::cont::testing::Testing::DataPath("third_party/visit/example.vtk");
vtkm::io::VTKDataSetReader rectReader(rectfname);
try
{
rectDS = rectReader.ReadDataSet();
}
catch (vtkm::io::ErrorIO& e)
{
std::string message("Error reading: ");
message += rectfname;
message += ", ";
message += e.GetMessage();
VTKM_TEST_FAIL(message.c_str());
}
vtkm::rendering::testing::RenderTest(
rectDS, "temp", "rendering/volume/rectilinear3D.png", options);
vtkm::filter::field_conversion::CellAverage cellAverage;
cellAverage.SetActiveField("temp");
cellAverage.SetOutputFieldName("temp_avg");
vtkm::cont::DataSet tempAvg = cellAverage.Execute(rectDS);
vtkm::rendering::testing::RenderTest(
tempAvg, "temp_avg", "rendering/volume/rectilinear3D_cell.png", options);
}
void TestUniformGrid()
{
vtkm::cont::ColorTable colorTable = vtkm::cont::ColorTable::Preset::Inferno;
colorTable.AddPointAlpha(0.0, 0.2f);
colorTable.AddPointAlpha(0.2, 0.0f);
colorTable.AddPointAlpha(0.5, 0.0f);
vtkm::rendering::testing::RenderTestOptions options;
options.Mapper = vtkm::rendering::testing::MapperType::Volume;
options.AllowAnyDevice = false;
options.ColorTable = colorTable;
// Rendering of AxisAnnotation3D is sensitive on the type
// of FloatDefault, disable it before we know how to fix
// it properly.
options.EnableAnnotations = false;
vtkm::source::Tangle tangle;
tangle.SetPointDimensions({ 50, 50, 50 });
vtkm::cont::DataSet tangleData = tangle.Execute();
vtkm::rendering::testing::RenderTest(
tangleData, "tangle", "rendering/volume/uniform.png", options);
vtkm::filter::field_conversion::CellAverage cellAverage;
cellAverage.SetActiveField("tangle");
cellAverage.SetOutputFieldName("tangle_avg");
vtkm::cont::DataSet tangleAvg = cellAverage.Execute(tangleData);
vtkm::rendering::testing::RenderTest(
tangleAvg, "tangle_avg", "rendering/volume/uniform_cell.png", options);
}
void RenderTests()
{
TestRectilinear();
TestUniformGrid();
}
} //namespace
int UnitTestMapperVolume(int argc, char* argv[])
{
return vtkm::cont::testing::Testing::Run(RenderTests, argc, argv);
}