vtk-m/vtkm/rendering/raytracing/Camera.h
2023-05-17 12:38:43 -06:00

146 lines
3.5 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.
//============================================================================
#ifndef vtk_m_rendering_raytracing_Camera_h
#define vtk_m_rendering_raytracing_Camera_h
#include <vtkm/cont/CoordinateSystem.h>
#include <vtkm/rendering/Camera.h>
#include <vtkm/rendering/raytracing/Ray.h>
namespace vtkm
{
namespace rendering
{
namespace raytracing
{
class VTKM_RENDERING_EXPORT Camera
{
private:
vtkm::Int32 Height = 500;
vtkm::Int32 Width = 500;
vtkm::Int32 SubsetWidth = 500;
vtkm::Int32 SubsetHeight = 500;
vtkm::Int32 SubsetMinX = 0;
vtkm::Int32 SubsetMinY = 0;
vtkm::Float32 FovX = 30.f;
vtkm::Float32 FovY = 30.f;
vtkm::Float32 Zoom = 1.f;
bool IsViewDirty = true;
vtkm::Vec3f_32 Look{ 0.f, 0.f, -1.f };
vtkm::Vec3f_32 Up{ 0.f, 1.f, 0.f };
vtkm::Vec3f_32 LookAt{ 0.f, 0.f, -1.f };
vtkm::Vec3f_32 Position{ 0.f, 0.f, 0.f };
vtkm::rendering::Camera CameraView;
vtkm::Matrix<vtkm::Float32, 4, 4> ViewProjectionMat;
public:
VTKM_CONT
std::string ToString();
VTKM_CONT
void SetParameters(const vtkm::rendering::Camera& camera, vtkm::Int32 width, vtkm::Int32 height);
VTKM_CONT
void SetHeight(const vtkm::Int32& height);
VTKM_CONT
vtkm::Int32 GetHeight() const;
VTKM_CONT
void SetWidth(const vtkm::Int32& width);
VTKM_CONT
vtkm::Int32 GetWidth() const;
VTKM_CONT
vtkm::Int32 GetSubsetWidth() const;
VTKM_CONT
vtkm::Int32 GetSubsetHeight() const;
VTKM_CONT
void SetZoom(const vtkm::Float32& zoom);
VTKM_CONT
vtkm::Float32 GetZoom() const;
VTKM_CONT
void SetFieldOfView(const vtkm::Float32& degrees);
VTKM_CONT
vtkm::Float32 GetFieldOfView() const;
VTKM_CONT
void SetUp(const vtkm::Vec3f_32& up);
VTKM_CONT
void SetPosition(const vtkm::Vec3f_32& position);
VTKM_CONT
vtkm::Vec3f_32 GetPosition() const;
VTKM_CONT
vtkm::Vec3f_32 GetUp() const;
VTKM_CONT
void SetLookAt(const vtkm::Vec3f_32& lookAt);
VTKM_CONT
vtkm::Vec3f_32 GetLookAt() const;
VTKM_CONT
void ResetIsViewDirty();
VTKM_CONT
bool GetIsViewDirty() const;
VTKM_CONT
void CreateRays(Ray<vtkm::Float32>& rays, const vtkm::Bounds& bounds);
VTKM_CONT
void CreateRays(Ray<vtkm::Float64>& rays, const vtkm::Bounds& bounds);
VTKM_CONT
void GetPixelData(const vtkm::cont::CoordinateSystem& coords,
vtkm::Int32& activePixels,
vtkm::Float32& aveRayDistance);
template <typename Precision>
VTKM_CONT void CreateRaysImpl(Ray<Precision>& rays, const vtkm::Bounds& boundingBox);
void CreateDebugRay(vtkm::Vec2i_32 pixel, Ray<vtkm::Float32>& rays);
void CreateDebugRay(vtkm::Vec2i_32 pixel, Ray<vtkm::Float64>& rays);
bool operator==(const Camera& other) const;
private:
template <typename Precision>
VTKM_CONT void CreateDebugRayImp(vtkm::Vec2i_32 pixel, Ray<Precision>& rays);
VTKM_CONT
void FindSubset(const vtkm::Bounds& bounds);
VTKM_CONT
void WriteSettingsToLog();
template <typename Precision>
VTKM_CONT void UpdateDimensions(Ray<Precision>& rays,
const vtkm::Bounds& boundingBox,
bool ortho2D);
}; // class camera
}
}
} //namespace vtkm::rendering::raytracing
#endif //vtk_m_rendering_raytracing_Camera_h