c3a3184d51
Sandia National Laboratories recently changed management from the Sandia Corporation to the National Technology & Engineering Solutions of Sandia, LLC (NTESS). The copyright statements need to be updated accordingly.
85 lines
2.8 KiB
C++
85 lines
2.8 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.
|
|
//
|
|
// Copyright 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
|
|
// Copyright 2015 UT-Battelle, LLC.
|
|
// Copyright 2015 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-NA0003525 with NTESS,
|
|
// the U.S. Government retains certain rights in this software.
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//
|
|
//=============================================================================
|
|
#include <vtkm/rendering/raytracing/RayOperations.h>
|
|
namespace vtkm
|
|
{
|
|
namespace rendering
|
|
{
|
|
namespace raytracing
|
|
{
|
|
|
|
template <typename T>
|
|
struct MapCanvasFunctor
|
|
{
|
|
const vtkm::Matrix<vtkm::Float32, 4, 4> Inverse;
|
|
const vtkm::Id Width;
|
|
const vtkm::Id Height;
|
|
const vtkm::cont::ArrayHandle<vtkm::Float32>& DepthBuffer;
|
|
Ray<T>& Rays;
|
|
vtkm::Vec<vtkm::Float32, 3> Origin;
|
|
|
|
MapCanvasFunctor(Ray<T>& rays,
|
|
const vtkm::Matrix<vtkm::Float32, 4, 4> inverse,
|
|
const vtkm::Id width,
|
|
const vtkm::Id height,
|
|
const vtkm::cont::ArrayHandle<vtkm::Float32>& depthBuffer,
|
|
const vtkm::Vec<vtkm::Float32, 3>& origin)
|
|
: Inverse(inverse)
|
|
, Width(width)
|
|
, Height(height)
|
|
, DepthBuffer(depthBuffer)
|
|
, Rays(rays)
|
|
, Origin(origin)
|
|
{
|
|
}
|
|
|
|
template <typename Device>
|
|
bool operator()(Device)
|
|
{
|
|
vtkm::worklet::DispatcherMapField<detail::RayMapCanvas, Device>(
|
|
detail::RayMapCanvas(Inverse, Width, Height, Origin))
|
|
.Invoke(Rays.PixelIdx, Rays.MaxDistance, DepthBuffer);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
void RayOperations::MapCanvasToRays(Ray<vtkm::Float32>& rays,
|
|
const vtkm::rendering::Camera& camera,
|
|
const vtkm::rendering::CanvasRayTracer& canvas)
|
|
{
|
|
vtkm::Id width = canvas.GetWidth();
|
|
vtkm::Id height = canvas.GetHeight();
|
|
vtkm::Matrix<vtkm::Float32, 4, 4> projview =
|
|
vtkm::MatrixMultiply(camera.CreateProjectionMatrix(width, height), camera.CreateViewMatrix());
|
|
bool valid;
|
|
vtkm::Matrix<vtkm::Float32, 4, 4> inverse = vtkm::MatrixInverse(projview, valid);
|
|
if (!valid)
|
|
throw vtkm::cont::ErrorBadValue("Inverse Invalid");
|
|
|
|
MapCanvasFunctor<vtkm::Float32> functor(
|
|
rays, inverse, width, height, canvas.GetDepthBuffer(), camera.GetPosition());
|
|
vtkm::cont::TryExecute(functor);
|
|
}
|
|
}
|
|
}
|
|
} // vtkm::rendering::raytacing
|