Commit fd4ff8c1 authored by Larsen, Matthew's avatar Larsen, Matthew
Browse files

adding files patch forgot

parent e0370357
//============================================================================
// 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.
//============================================================================
#ifndef vtk_m_rendering_raytracing_PartialComposite_h
#define vtk_m_rendering_raytracing_PartialComposite_h
#include <vtkm/cont/ArrayHandle.h>
#include <vtkm/rendering/raytracing/ChannelBuffer.h>
namespace vtkm
{
namespace rendering
{
namespace raytracing
{
template <typename FloatType>
struct PartialComposite
{
vtkm::cont::ArrayHandle<vtkm::Id> PixelIds; // pixel that owns composite
vtkm::cont::ArrayHandle<FloatType> Distances; // distance of composite end
ChannelBuffer<FloatType> Buffer; // holds either color or absorption
// (optional fields)
ChannelBuffer<FloatType> Intensities; // holds the intensity emerging from each ray
vtkm::cont::ArrayHandle<FloatType> PathLengths; // Total distance traversed through the mesh
};
}
}
} // namespace vtkm::rendering::raytracing
#endif
//============================================================================
// 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.
//============================================================================
#ifndef vtk_m_rendering_raytracing_TriangleIntersections_h
#define vtk_m_rendering_raytracing_TriangleIntersections_h
#include <vtkm/Math.h>
namespace vtkm
{
namespace rendering
{
namespace raytracing
{
class Moller
{
public:
template <typename Precision>
VTKM_EXEC void IntersectTri(const vtkm::Vec<Precision, 3>& a,
const vtkm::Vec<Precision, 3>& b,
const vtkm::Vec<Precision, 3>& c,
const vtkm::Vec<Precision, 3>& dir,
Precision& distance,
Precision& u,
Precision& v,
const vtkm::Vec<Precision, 3>& origin) const
{
const vtkm::Float32 EPSILON2 = 0.0001f;
vtkm::Vec<Precision, 3> e1 = b - a;
vtkm::Vec<Precision, 3> e2 = c - a;
vtkm::Vec<Precision, 3> p;
p[0] = dir[1] * e2[2] - dir[2] * e2[1];
p[1] = dir[2] * e2[0] - dir[0] * e2[2];
p[2] = dir[0] * e2[1] - dir[1] * e2[0];
Precision dot = e1[0] * p[0] + e1[1] * p[1] + e1[2] * p[2];
if (dot != 0.f)
{
dot = 1.f / dot;
vtkm::Vec<Precision, 3> t;
t = origin - a;
u = (t[0] * p[0] + t[1] * p[1] + t[2] * p[2]) * dot;
if (u >= (0.f - EPSILON2) && u <= (1.f + EPSILON2))
{
vtkm::Vec<Precision, 3> q; // = t % e1;
q[0] = t[1] * e1[2] - t[2] * e1[1];
q[1] = t[2] * e1[0] - t[0] * e1[2];
q[2] = t[0] * e1[1] - t[1] * e1[0];
v = (dir[0] * q[0] + dir[1] * q[1] + dir[2] * q[2]) * dot;
if (v >= (0.f - EPSILON2) && v <= (1.f + EPSILON2) && !(u + v > 1.f))
{
distance = (e2[0] * q[0] + e2[1] * q[1] + e2[2] * q[2]) * dot;
}
}
}
}
}; //Moller
// TODO: optimization for sorting ray dims before this call.
// This is called multiple times and kz,kx, and ky are
// constant for the ray
class WaterTight
{
public:
template <typename Precision>
VTKM_EXEC inline void FindDir(const vtkm::Vec<Precision, 3>& dir,
vtkm::Vec<Precision, 3>& s,
vtkm::Vec<Int32, 3>& k) const
{
//Find max ray direction
k[2] = 0;
if (vtkm::Abs(dir[0]) > vtkm::Abs(dir[1]))
{
if (vtkm::Abs(dir[0]) > vtkm::Abs(dir[2]))
k[2] = 0;
else
k[2] = 2;
}
else
{
if (vtkm::Abs(dir[1]) > vtkm::Abs(dir[2]))
k[2] = 1;
else
k[2] = 2;
}
k[0] = k[2] + 1;
if (k[0] == 3)
k[0] = 0;
k[1] = k[0] + 1;
if (k[1] == 3)
k[1] = 0;
if (dir[k[2]] < 0.f)
{
vtkm::Int32 temp = k[1];
k[1] = k[0];
k[0] = temp;
}
s[0] = dir[k[0]] / dir[k[2]];
s[1] = dir[k[1]] / dir[k[2]];
s[2] = 1.f / dir[k[2]];
}
template <typename Precision>
VTKM_EXEC_CONT inline void IntersectTri(const vtkm::Vec<Precision, 3>& a,
const vtkm::Vec<Precision, 3>& b,
const vtkm::Vec<Precision, 3>& c,
const vtkm::Vec<Precision, 3>& dir,
Precision& distance,
Precision& u,
Precision& v,
const vtkm::Vec<Precision, 3>& origin) const
{
vtkm::Vec<Int32, 3> k;
vtkm::Vec<Precision, 3> s;
//Find max ray direction
k[2] = 0;
if (vtkm::Abs(dir[0]) > vtkm::Abs(dir[1]))
{
if (vtkm::Abs(dir[0]) > vtkm::Abs(dir[2]))
k[2] = 0;
else
k[2] = 2;
}
else
{
if (vtkm::Abs(dir[1]) > vtkm::Abs(dir[2]))
k[2] = 1;
else
k[2] = 2;
}
k[0] = k[2] + 1;
if (k[0] == 3)
k[0] = 0;
k[1] = k[0] + 1;
if (k[1] == 3)
k[1] = 0;
if (dir[k[2]] < 0.f)
{
vtkm::Int32 temp = k[1];
k[1] = k[0];
k[0] = temp;
}
s[0] = dir[k[0]] / dir[k[2]];
s[1] = dir[k[1]] / dir[k[2]];
s[2] = 1.f / dir[k[2]];
vtkm::Vec<Precision, 3> A, B, C;
A = a - origin;
B = b - origin;
C = c - origin;
const Precision Ax = A[k[0]] - s[0] * A[k[2]];
const Precision Ay = A[k[1]] - s[1] * A[k[2]];
const Precision Bx = B[k[0]] - s[0] * B[k[2]];
const Precision By = B[k[1]] - s[1] * B[k[2]];
const Precision Cx = C[k[0]] - s[0] * C[k[2]];
const Precision Cy = C[k[1]] - s[1] * C[k[2]];
//scaled barycentric coords
u = Cx * By - Cy * Bx;
v = Ax * Cy - Ay * Cx;
Precision w = Bx * Ay - By * Ax;
if (u == 0.f || v == 0.f || w == 0.f)
{
vtkm::Float64 CxBy = vtkm::Float64(Cx) * vtkm::Float64(By);
vtkm::Float64 CyBx = vtkm::Float64(Cy) * vtkm::Float64(Bx);
u = vtkm::Float32(CxBy - CyBx);
vtkm::Float64 AxCy = vtkm::Float64(Ax) * vtkm::Float64(Cy);
vtkm::Float64 AyCx = vtkm::Float64(Ay) * vtkm::Float64(Cx);
v = vtkm::Float32(AxCy - AyCx);
vtkm::Float64 BxAy = vtkm::Float64(Bx) * vtkm::Float64(Ay);
vtkm::Float64 ByAx = vtkm::Float64(By) * vtkm::Float64(Ax);
w = vtkm::Float32(BxAy - ByAx);
}
Precision low = vtkm::Min(u, vtkm::Min(v, w));
Precision high = vtkm::Max(u, vtkm::Max(v, w));
bool invalid = (low < 0.) && (high > 0.);
Precision det = u + v + w;
if (det == 0.)
invalid = true;
const Precision Az = s[2] * A[k[2]];
const Precision Bz = s[2] * B[k[2]];
const Precision Cz = s[2] * C[k[2]];
det = 1.f / det;
u = u * det;
v = v * det;
distance = (u * Az + v * Bz + w * det * Cz);
u = v;
v = w * det;
if (invalid)
distance = -1.;
}
template <typename Precision>
VTKM_EXEC inline void IntersectTriSn(const vtkm::Vec<Precision, 3>& a,
const vtkm::Vec<Precision, 3>& b,
const vtkm::Vec<Precision, 3>& c,
const vtkm::Vec<Precision, 3>& s,
const vtkm::Vec<Int32, 3>& k,
Precision& distance,
Precision& u,
Precision& v,
const vtkm::Vec<Precision, 3>& origin) const
{
vtkm::Vec<Precision, 3> A, B, C;
A = a - origin;
B = b - origin;
C = c - origin;
const Precision Ax = A[k[0]] - s[0] * A[k[2]];
const Precision Ay = A[k[1]] - s[1] * A[k[2]];
const Precision Bx = B[k[0]] - s[0] * B[k[2]];
const Precision By = B[k[1]] - s[1] * B[k[2]];
const Precision Cx = C[k[0]] - s[0] * C[k[2]];
const Precision Cy = C[k[1]] - s[1] * C[k[2]];
//scaled barycentric coords
u = Cx * By - Cy * Bx;
v = Ax * Cy - Ay * Cx;
Precision w = Bx * Ay - By * Ax;
if (u == 0.f || v == 0.f || w == 0.f)
{
vtkm::Float64 CxBy = vtkm::Float64(Cx) * vtkm::Float64(By);
vtkm::Float64 CyBx = vtkm::Float64(Cy) * vtkm::Float64(Bx);
u = vtkm::Float32(CxBy - CyBx);
vtkm::Float64 AxCy = vtkm::Float64(Ax) * vtkm::Float64(Cy);
vtkm::Float64 AyCx = vtkm::Float64(Ay) * vtkm::Float64(Cx);
v = vtkm::Float32(AxCy - AyCx);
vtkm::Float64 BxAy = vtkm::Float64(Bx) * vtkm::Float64(Ay);
vtkm::Float64 ByAx = vtkm::Float64(By) * vtkm::Float64(Ax);
w = vtkm::Float32(BxAy - ByAx);
}
Precision low = vtkm::Min(u, vtkm::Min(v, w));
Precision high = vtkm::Max(u, vtkm::Max(v, w));
bool invalid = (low < 0.) && (high > 0.);
Precision det = u + v + w;
if (det == 0.)
invalid = true;
const Precision Az = s[2] * A[k[2]];
const Precision Bz = s[2] * B[k[2]];
const Precision Cz = s[2] * C[k[2]];
det = 1.f / det;
u = u * det;
v = v * det;
distance = (u * Az + v * Bz + w * det * Cz);
u = v;
v = w * det;
if (invalid)
distance = -1.;
}
}; //WaterTight
template <>
VTKM_EXEC inline void WaterTight::IntersectTri<vtkm::Float64>(
const vtkm::Vec<vtkm::Float64, 3>& a,
const vtkm::Vec<vtkm::Float64, 3>& b,
const vtkm::Vec<vtkm::Float64, 3>& c,
const vtkm::Vec<vtkm::Float64, 3>& dir,
vtkm::Float64& distance,
vtkm::Float64& u,
vtkm::Float64& v,
const vtkm::Vec<vtkm::Float64, 3>& origin) const
{
//Find max ray direction
int kz = 0;
if (vtkm::Abs(dir[0]) > vtkm::Abs(dir[1]))
{
if (vtkm::Abs(dir[0]) > vtkm::Abs(dir[2]))
kz = 0;
else
kz = 2;
}
else
{
if (vtkm::Abs(dir[1]) > vtkm::Abs(dir[2]))
kz = 1;
else
kz = 2;
}
vtkm::Int32 kx = kz + 1;
if (kx == 3)
kx = 0;
vtkm::Int32 ky = kx + 1;
if (ky == 3)
ky = 0;
if (dir[kz] < 0.f)
{
vtkm::Int32 temp = ky;
ky = kx;
kx = temp;
}
vtkm::Float64 Sx = dir[kx] / dir[kz];
vtkm::Float64 Sy = dir[ky] / dir[kz];
vtkm::Float64 Sz = 1. / dir[kz];
vtkm::Vec<vtkm::Float64, 3> A, B, C;
A = a - origin;
B = b - origin;
C = c - origin;
const vtkm::Float64 Ax = A[kx] - Sx * A[kz];
const vtkm::Float64 Ay = A[ky] - Sy * A[kz];
const vtkm::Float64 Bx = B[kx] - Sx * B[kz];
const vtkm::Float64 By = B[ky] - Sy * B[kz];
const vtkm::Float64 Cx = C[kx] - Sx * C[kz];
const vtkm::Float64 Cy = C[ky] - Sy * C[kz];
//scaled barycentric coords
u = Cx * By - Cy * Bx;
v = Ax * Cy - Ay * Cx;
vtkm::Float64 w = Bx * Ay - By * Ax;
vtkm::Float64 low = vtkm::Min(u, vtkm::Min(v, w));
vtkm::Float64 high = vtkm::Max(u, vtkm::Max(v, w));
bool invalid = (low < 0.) && (high > 0.);
vtkm::Float64 det = u + v + w;
if (det == 0.)
invalid = true;
const vtkm::Float64 Az = Sz * A[kz];
const vtkm::Float64 Bz = Sz * B[kz];
const vtkm::Float64 Cz = Sz * C[kz];
det = 1. / det;
u = u * det;
v = v * det;
distance = (u * Az + v * Bz + w * det * Cz);
u = v;
v = w * det;
if (invalid)
distance = -1.;
}
}
}
} //namespace vtkm::rendering::raytracing
#endif //vtk_m_rendering_raytracing_TriagnleIntersections_h
//============================================================================
// 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/TriangleIntersector.h>
#include <cstring>
#include <vtkm/cont/ArrayHandle.h>
#include <vtkm/cont/ArrayHandleCompositeVector.h>
#include <vtkm/rendering/raytracing/BVHTraverser.h>
#include <vtkm/rendering/raytracing/BoundingVolumeHierarchy.h>
#include <vtkm/rendering/raytracing/RayOperations.h>
#include <vtkm/rendering/raytracing/TriangleIntersections.h>
#include <vtkm/worklet/WorkletMapField.h>
namespace vtkm
{
namespace rendering
{
namespace raytracing
{
namespace detail
{
template <typename Device>
class WaterTightLeafIntersector
{
public:
using Id4Handle = vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Id, 4>>;
using Id4ArrayPortal = typename Id4Handle::ExecutionTypes<Device>::PortalConst;
Id4ArrayPortal Triangles;
public:
WaterTightLeafIntersector() = default;
WaterTightLeafIntersector(const Id4Handle& triangles)
: Triangles(triangles.PrepareForInput(Device()))
{
}
template <typename PointPortalType, typename LeafPortalType, typename Precision>
VTKM_EXEC inline void IntersectLeaf(const vtkm::Int32& currentNode,
const vtkm::Vec<Precision, 3>& origin,
const vtkm::Vec<Precision, 3>& dir,
const PointPortalType& points,
vtkm::Id& hitIndex,
Precision& closestDistance,
Precision& minU,
Precision& minV,
LeafPortalType leafs,
const Precision& minDistance) const
{
const vtkm::Id triangleCount = leafs.Get(currentNode);
WaterTight intersector;
for (vtkm::Id i = 1; i <= triangleCount; ++i)
{
const vtkm::Id triIndex = leafs.Get(currentNode + i);
vtkm::Vec<Id, 4> triangle = Triangles.Get(triIndex);
vtkm::Vec<Precision, 3> a = vtkm::Vec<Precision, 3>(points.Get(triangle[1]));
vtkm::Vec<Precision, 3> b = vtkm::Vec<Precision, 3>(points.Get(triangle[2]));
vtkm::Vec<Precision, 3> c = vtkm::Vec<Precision, 3>(points.Get(triangle[3]));
Precision distance = -1.;
Precision u, v;
intersector.IntersectTri(a, b, c, dir, distance, u, v, origin);
if (distance != -1. && distance < closestDistance && distance > minDistance)
{
closestDistance = distance;
minU = u;
minV = v;
hitIndex = triIndex;
}
} // for
}
};
template <typename Device>
class MollerTriLeafIntersector
{
//protected:
public:
using Id4Handle = vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Id, 4>>;
using Id4ArrayPortal = typename Id4Handle::ExecutionTypes<Device>::PortalConst;
Id4ArrayPortal Triangles;
public:
MollerTriLeafIntersector() {}
MollerTriLeafIntersector(const Id4Handle& triangles)
: Triangles(triangles.PrepareForInput(Device()))
{
}
template <typename PointPortalType, typename LeafPortalType, typename Precision>
VTKM_EXEC inline void IntersectLeaf(const vtkm::Int32& currentNode,
const vtkm::Vec<Precision, 3>& origin,
const vtkm::Vec<Precision, 3>& dir,
const PointPortalType& points,
vtkm::Id& hitIndex,
Precision& closestDistance,
Precision& minU,
Precision& minV,
LeafPortalType leafs,
const Precision& minDistance) const
{
const vtkm::Id triangleCount = leafs.Get(currentNode);
Moller intersector;
for (vtkm::Id i = 1; i <= triangleCount; ++i)
{
const vtkm::Id triIndex = leafs.Get(currentNode + i);
vtkm::Vec<Id, 4> triangle = Triangles.Get(triIndex);
vtkm::Vec<Precision, 3> a = vtkm::Vec<Precision, 3>(points.Get(triangle[1]));
vtkm::Vec<Precision, 3> b = vtkm::Vec<Precision, 3>(points.Get(triangle[2]));
vtkm::Vec<Precision, 3> c = vtkm::Vec<Precision, 3>(points.Get(triangle[3]));
Precision distance = -1.;
Precision u, v;
intersector.IntersectTri(a, b, c, dir, distance, u, v, origin);
if (distance != -1. && distance < closestDistance && distance > minDistance)
{
closestDistance = distance;