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vtkOSPRayPolyDataMapperNode.cxx
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vtkOSPRayPolyDataMapperNode.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOSPRayPolyDataMapperNode.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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 "vtkOSPRayPolyDataMapperNode.h"
#include "vtkActor.h"
#include "vtkOSPRayActorNode.h"
#include "vtkOSPRayMaterialHelpers.h"
#include "vtkOSPRayRendererNode.h"
#include "vtkDataArray.h"
#include "vtkFloatArray.h"
#include "vtkImageData.h"
#include "vtkInformation.h"
#include "vtkInformationDoubleKey.h"
#include "vtkInformationObjectBaseKey.h"
#include "vtkMapper.h"
#include "vtkObjectFactory.h"
#include "vtkPiecewiseFunction.h"
#include "vtkPointData.h"
#include "vtkPolyData.h"
#include "vtkProperty.h"
#include "vtkRenderer.h"
#include "vtkTexture.h"
#include "vtkScalarsToColors.h"
#include "vtkSmartPointer.h"
#include "ospray/ospray.h"
#include "ospray/version.h"
#include <map>
//============================================================================
namespace vtkosp {
//------------------------------------------------------------------------------
class MyGeom {
//A cache for the ospray meshes we make for this actor.
//When something else in the scene changes but this actor doesn't we
//reuse instead of recreating. RendererNode has a higher level cache
//that prevent spatial sorting when nothing changes other than camera.
public:
std::vector<OSPGeometry> geoms;
~MyGeom()
{
std::vector<OSPGeometry>::iterator it = geoms.begin();
while (it != geoms.end())
{
ospRelease((OSPGeometry)*it);
++it;
}
geoms.clear();
}
void Add(OSPGeometry geo)
{
geoms.push_back(geo);
}
void AddMyselfTo(OSPModel oModel)
{
std::vector<OSPGeometry>::iterator it = geoms.begin();
while (it != geoms.end())
{
ospAddGeometry(oModel, *it);
++it;
}
}
};
//------------------------------------------------------------------------------
void VToOPointNormals(
vtkDataArray *vNormals,
osp::vec3f *&normals)
{
int numNormals = vNormals->GetNumberOfTuples();
normals = new osp::vec3f[numNormals];
for (int i = 0; i < numNormals; i++)
{
double *vNormal = vNormals->GetTuple(i);
normals[i] = osp::vec3f {
static_cast<float>(vNormal[0]),
static_cast<float>(vNormal[1]),
static_cast<float>(vNormal[2])
};
}
}
//------------------------------------------------------------------------------
void CellMaterials(
vtkPolyData *poly,
vtkMapper *mapper,
vtkScalarsToColors *s2c,
std::map<std::string, OSPMaterial > mats,
OSPRenderer oRenderer,
std::vector<OSPMaterial> &ospMaterials,
vtkUnsignedCharArray *vColors,
float *specColor, float specPower,
float opacity
)
{
vtkAbstractArray *scalars = nullptr;
bool try_mats =
s2c->GetIndexedLookup() &&
s2c->GetNumberOfAnnotatedValues() &&
mats.size()>0;
if (try_mats)
{
int cflag2 =-1;
scalars = mapper->GetAbstractScalars
(poly, mapper->GetScalarMode(), mapper->GetArrayAccessMode(),
mapper->GetArrayId(), mapper->GetArrayName(), cflag2);
}
int numColors = vColors->GetNumberOfTuples();
for (int i = 0; i < numColors; i++)
{
bool found = false;
if (scalars)
{
vtkVariant v = scalars->GetVariantValue(i);
vtkIdType idx = s2c->GetAnnotatedValueIndex(v);
if (idx > -1)
{
std::string name(s2c->GetAnnotation(idx));
if (mats.find(name) != mats.end())
{
OSPMaterial oMaterial = mats[name];
ospCommit(oMaterial);
ospMaterials.push_back(oMaterial);
found = true;
}
}
}
if (!found)
{
double *color = vColors->GetTuple(i);
OSPMaterial oMaterial;
oMaterial = ospNewMaterial(oRenderer,"OBJMaterial");
float diffusef[] =
{
static_cast<float>(color[0])/(255.0f),
static_cast<float>(color[1])/(255.0f),
static_cast<float>(color[2])/(255.0f)
};
ospSet3fv(oMaterial,"Kd",diffusef);
float specAdjust = 2.0f/(2.0f+specPower);
float specularf[] = {
specColor[0]*specAdjust,
specColor[1]*specAdjust,
specColor[2]*specAdjust
};
ospSet3fv(oMaterial,"Ks",specularf);
ospSet1f(oMaterial,"Ns",specPower);
ospSet1f(oMaterial,"d", opacity);
ospCommit(oMaterial);
ospMaterials.push_back(oMaterial);
}
}
}
//----------------------------------------------------------------------------
float MapThroughPWF(double in, vtkPiecewiseFunction *scaleFunction)
{
double out = in;
if (!scaleFunction)
{
out = in;
}
else
{
out = scaleFunction->GetValue(in);
}
return static_cast<float>(out);
}
//----------------------------------------------------------------------------
OSPGeometry RenderAsSpheres(osp::vec3fa *vertices,
std::vector<unsigned int> &indexArray,
std::vector<unsigned int> &rIndexArray,
double pointSize,
vtkDataArray* scaleArray,
vtkPiecewiseFunction *scaleFunction,
bool useCustomMaterial,
OSPMaterial actorMaterial,
vtkImageData *vColorTextureMap,
int numTextureCoordinates,
float *textureCoordinates,
int numCellMaterials,
OSPData CellMaterials,
int numPointColors,
osp::vec4f *PointColors,
int numPointValueTextureCoords,
float *pointValueTextureCoords,
OSPModel oModel,
OSPRenderer oRenderer
)
{
OSPGeometry ospMesh = ospNewGeometry("spheres");
int width=4;
int scaleOffset = -1;
if (scaleArray != nullptr)
{
width = 5;
scaleOffset = 4*sizeof(float);
}
float *mdata = new float[width*indexArray.size()];
int *idata = (int*)mdata;
for (size_t i = 0; i < indexArray.size(); i++)
{
mdata[i*width+0] = static_cast<float>(vertices[indexArray[i]].x);
mdata[i*width+1] = static_cast<float>(vertices[indexArray[i]].y);
mdata[i*width+2] = static_cast<float>(vertices[indexArray[i]].z);
int mat = 0;
if (numCellMaterials)
{
mat = rIndexArray[i];
}
else if (numPointColors)
{
mat = indexArray[i];
}
idata[i*width+3] = mat;
if (scaleArray != nullptr)
{
mdata[i*width+4] = MapThroughPWF
(*scaleArray->GetTuple(indexArray[i]),
scaleFunction);
}
}
OSPData _PointColors = nullptr;
if (numPointColors)
{
_PointColors = ospNewData(numPointColors, OSP_FLOAT4, &PointColors[0]);
}
OSPData _mdata = ospNewData(indexArray.size()*width, OSP_FLOAT, mdata);
ospSetObject(ospMesh, "spheres", _mdata);
ospSet1i(ospMesh, "bytes_per_sphere", width*sizeof(float));
ospSet1i(ospMesh, "offset_center", 0*sizeof(float));
ospSet1f(ospMesh, "radius", pointSize);
ospSet1i(ospMesh, "offset_radius", scaleOffset);
//send the texture map and texture coordinates over
bool _hastm = false;
osp::vec2f *tc = nullptr;
if (numTextureCoordinates || numPointValueTextureCoords)
{
_hastm = true;
if (numPointValueTextureCoords)
{
//using 1D texture for point value LUT
tc = new osp::vec2f[indexArray.size()];
for (size_t i = 0; i < indexArray.size(); i++)
{
float t1;
int index1 = indexArray[i];
t1 = pointValueTextureCoords[index1+0];
tc[i] = osp::vec2f{t1,0};
}
OSPData tcs = ospNewData(indexArray.size(), OSP_FLOAT2, &tc[0]);
ospSetData(ospMesh, "texcoord", tcs);
}
else if (numTextureCoordinates)
{
//2d texture mapping
float *itc = textureCoordinates;
tc = new osp::vec2f[indexArray.size()];
for (size_t i = 0; i < indexArray.size(); i++)
{
float t1,t2;
int index1 = indexArray[i];
t1 = itc[index1*2+0];
t2 = itc[index1*2+1];
tc[i] = osp::vec2f{t1,t2};
}
OSPData tcs = ospNewData(indexArray.size(), OSP_FLOAT2, &tc[0]);
ospSetData(ospMesh, "texcoord", tcs);
}
}
delete[] tc;
if (useCustomMaterial)
{
ospSetMaterial(ospMesh, actorMaterial);
}
else if (vColorTextureMap && _hastm)
{
osp::Texture2D *t2d = vtkOSPRayMaterialHelpers::VTKToOSPTexture(vColorTextureMap);
OSPMaterial ospMaterial = ospNewMaterial(oRenderer,"OBJMaterial");
ospSetObject(ospMaterial, "map_Kd", ((OSPTexture2D)(t2d)));
ospCommit(t2d);
ospCommit(ospMaterial);
ospSetMaterial(ospMesh, ospMaterial);
}
else if (numCellMaterials)
{
//per cell color
ospSet1i(ospMesh, "offset_materialID", 3*sizeof(float));
ospSetData(ospMesh, "materialList", CellMaterials);
}
else if (numPointColors)
{
//per point color
ospSet1i(ospMesh, "offset_colorID", 3*sizeof(float));
ospSetData(ospMesh, "color", _PointColors);
}
else
{
//per actor color
ospSetMaterial(ospMesh, actorMaterial);
}
ospAddGeometry(oModel, ospMesh);
ospCommit(ospMesh);
ospRelease(_PointColors);
ospRelease(_mdata);
delete[] mdata;
return ospMesh;
}
//----------------------------------------------------------------------------
OSPGeometry RenderAsCylinders(osp::vec3fa *vertices,
std::vector<unsigned int> &indexArray,
std::vector<unsigned int> &rIndexArray,
double lineWidth,
vtkDataArray *scaleArray,
vtkPiecewiseFunction *scaleFunction,
bool useCustomMaterial,
OSPMaterial actorMaterial,
vtkImageData *vColorTextureMap,
int numTextureCoordinates,
float *textureCoordinates,
int numCellMaterials,
OSPData CellMaterials,
int numPointColors,
osp::vec4f *PointColors,
int numPointValueTextureCoords,
float *pointValueTextureCoords,
OSPModel oModel,
OSPRenderer oRenderer
)
{
OSPGeometry ospMesh = ospNewGeometry("cylinders");
int width=7;
int scaleOffset = -1;
if (scaleArray != nullptr)
{
width = 8;
scaleOffset = 7*sizeof(float);
}
float *mdata = new float[indexArray.size()/2*width];
int *idata = (int*)mdata;
for (size_t i = 0; i < indexArray.size()/2; i++)
{
mdata[i*width+0] = static_cast<float>(vertices[indexArray[i*2+0]].x);
mdata[i*width+1] = static_cast<float>(vertices[indexArray[i*2+0]].y);
mdata[i*width+2] = static_cast<float>(vertices[indexArray[i*2+0]].z);
mdata[i*width+3] = static_cast<float>(vertices[indexArray[i*2+1]].x);
mdata[i*width+4] = static_cast<float>(vertices[indexArray[i*2+1]].y);
mdata[i*width+5] = static_cast<float>(vertices[indexArray[i*2+1]].z);
int mat = 0;
if (numCellMaterials)
{
mat = rIndexArray[i*2];
}
else if (numPointColors)
{
mat = indexArray[i*2];
}
idata[i*width+6] = mat;
if (scaleArray != nullptr)
{
double avg = (*scaleArray->GetTuple(indexArray[i*2+0]) +
*scaleArray->GetTuple(indexArray[i*2+1]))*0.5;
mdata[i*width+7] = MapThroughPWF
(avg,
scaleFunction);
}
}
OSPData _PointColors = nullptr;
if (numPointColors)
{
_PointColors = ospNewData(numPointColors, OSP_FLOAT4, &PointColors[0]);
}
OSPData _mdata = ospNewData(indexArray.size()/2*width, OSP_FLOAT, mdata);
ospSetData(ospMesh, "cylinders", _mdata);
ospSet1i(ospMesh, "bytes_per_cylinder", width*sizeof(float));
ospSet1i(ospMesh, "offset_v0", 0);
ospSet1i(ospMesh, "offset_v1", 3*sizeof(float));
ospSet1f(ospMesh, "radius", lineWidth);
ospSet1i(ospMesh, "offset_radius", scaleOffset);
//send the texture map and texture coordinates over
bool _hastm = false;
osp::vec2f *tc = nullptr;
if (numTextureCoordinates || numPointValueTextureCoords)
{
_hastm = true;
if (numPointValueTextureCoords)
{
//using 1D texture for point value LUT
tc = new osp::vec2f[indexArray.size()];
for (size_t i = 0; i < indexArray.size(); i+=2)
{
float t1,t2;
int index1 = indexArray[i+0];
t1 = pointValueTextureCoords[index1+0];
tc[i] = osp::vec2f{t1,0};
int index2 = indexArray[i+1];
t2 = pointValueTextureCoords[index2+0];
tc[i+1] = osp::vec2f{t2,0};
}
OSPData tcs = ospNewData(indexArray.size(), OSP_FLOAT2, &tc[0]);
ospSetData(ospMesh, "texcoord", tcs);
ospSetData(ospMesh, "vertex.texcoord", tcs);
}
else if (numTextureCoordinates)
{
//2d texture mapping
float *itc = textureCoordinates;
tc = new osp::vec2f[indexArray.size()];
for (size_t i = 0; i < indexArray.size(); i+=2)
{
float t1,t2;
int index1 = indexArray[i+0];
t1 = itc[index1*2+0];
t2 = itc[index1*2+1];
tc[i] = osp::vec2f{t1,t2};
int index2 = indexArray[i+1];
t1 = itc[index2*2+0];
t2 = itc[index2*2+1];
tc[i+1] = osp::vec2f{t1,t2};
}
OSPData tcs = ospNewData(indexArray.size(), OSP_FLOAT2, &tc[0]);
ospSetData(ospMesh, "texcoord", tcs);
}
}
delete[] tc;
if (useCustomMaterial)
{
ospSetMaterial(ospMesh, actorMaterial);
}
else if (vColorTextureMap && _hastm)
{
osp::Texture2D *t2d = vtkOSPRayMaterialHelpers::VTKToOSPTexture(vColorTextureMap);
OSPMaterial ospMaterial = ospNewMaterial(oRenderer,"OBJMaterial");
ospSetObject(ospMaterial, "map_Kd", ((OSPTexture2D)(t2d)));
ospCommit(t2d);
ospCommit(ospMaterial);
ospSetMaterial(ospMesh, ospMaterial);
}
else if (numCellMaterials)
{
//per cell color
ospSet1i(ospMesh, "offset_materialID", 6*sizeof(float));
ospSetData(ospMesh, "materialList", CellMaterials);
}
else if (numPointColors)
{
//per point color
ospSet1i(ospMesh, "offset_colorID", 6*sizeof(float));
ospSetData(ospMesh, "color", _PointColors);
}
else
{
//per actor color
ospSetMaterial(ospMesh, actorMaterial);
}
ospAddGeometry(oModel, ospMesh);
ospCommit(ospMesh);
ospRelease(_PointColors);
ospRelease(_mdata);
delete[] mdata;
return ospMesh;
}
//----------------------------------------------------------------------------
OSPGeometry RenderAsTriangles(OSPData vertices,
std::vector<unsigned int> &indexArray,
std::vector<unsigned int> &rIndexArray,
bool useCustomMaterial,
OSPMaterial actorMaterial,
int numNormals,
osp::vec3f *normals,
vtkImageData *vColorTextureMap,
int numTextureCoordinates,
float *textureCoordinates,
int numCellMaterials,
OSPData CellMaterials,
int numPointColors,
osp::vec4f *PointColors,
int numPointValueTextureCoords,
float *pointValueTextureCoords,
OSPModel oModel,
OSPRenderer oRenderer
)
{
OSPGeometry ospMesh = ospNewGeometry("trianglemesh");
ospSetData(ospMesh, "position", vertices);
size_t numTriangles = indexArray.size() / 3;
osp::vec3i *triangles = new osp::vec3i[numTriangles];
for (size_t i = 0, mi = 0; i < numTriangles; i++, mi += 3)
{
triangles[i] = osp::vec3i{static_cast<int>(indexArray[mi + 0]),
static_cast<int>(indexArray[mi + 1]),
static_cast<int>(indexArray[mi + 2])};
}
OSPData index = ospNewData(numTriangles, OSP_INT3, &triangles[0]);
delete[] triangles;
ospSetData(ospMesh, "index", index);
OSPData _normals = nullptr;
if (numNormals)
{
_normals = ospNewData(numNormals, OSP_FLOAT3, &normals[0]);
ospSetData(ospMesh, "vertex.normal", _normals);
}
//send the texture map and texture coordinates over
bool _hastm = false;
osp::vec2f *tc = nullptr;
if (numTextureCoordinates || numPointValueTextureCoords)
{
_hastm = true;
if (numPointValueTextureCoords)
{
//using 1D texture for point value LUT
tc = new osp::vec2f[numPointValueTextureCoords];
for (size_t i = 0; i < static_cast<size_t>(numPointValueTextureCoords); i++)
{
tc[i] = osp::vec2f{pointValueTextureCoords[i],0};
}
OSPData tcs = ospNewData(numPointValueTextureCoords, OSP_FLOAT2, &tc[0]);
ospSetData(ospMesh, "vertex.texcoord", tcs);
}
else if (numTextureCoordinates)
{
//2d texture mapping
tc = new osp::vec2f[numTextureCoordinates/2];
float *itc = textureCoordinates;
for (size_t i = 0; i < static_cast<size_t>(numTextureCoordinates); i+=2)
{
float t1,t2;
t1 = *itc;
itc++;
t2 = *itc;
itc++;
tc[i/2] = osp::vec2f{t1,t2};
}
OSPData tcs = ospNewData(numTextureCoordinates/2, OSP_FLOAT2, &tc[0]);
ospSetData(ospMesh, "vertex.texcoord", tcs);
}
}
delete[] tc;
//send over cell colors, point colors or whole actor color
OSPData _cmats = nullptr;
OSPData _PointColors = nullptr;
int *ids = nullptr;
if (useCustomMaterial)
{
ospSetMaterial(ospMesh, actorMaterial);
}
else if (vColorTextureMap && _hastm)
{
osp::Texture2D *t2d = vtkOSPRayMaterialHelpers::VTKToOSPTexture(vColorTextureMap);
OSPMaterial ospMaterial = ospNewMaterial(oRenderer,"OBJMaterial");
ospSetObject(ospMaterial, "map_Kd", ((OSPTexture2D)(t2d)));
ospCommit(t2d);
ospCommit(ospMaterial);
ospSetMaterial(ospMesh, ospMaterial);
}
else if (numCellMaterials)
{
ids = new int[numTriangles];
for (size_t i = 0; i < numTriangles; i++)
{
ids[i] = rIndexArray[i*3+0];
}
_cmats = ospNewData(numTriangles, OSP_INT, &ids[0]);
ospSetData(ospMesh, "prim.materialID", _cmats);
ospSetData(ospMesh, "materialList", CellMaterials);
}
else if (numPointColors)
{
_PointColors = ospNewData(numPointColors, OSP_FLOAT4, &PointColors[0]);
ospSetData(ospMesh, "vertex.color", _PointColors);
}
else
{
ospSetMaterial(ospMesh, actorMaterial);
}
ospAddGeometry(oModel, ospMesh);
ospCommit(ospMesh);
ospRelease(index);
ospRelease(_normals);
ospRelease(_PointColors);
ospRelease(_cmats);
delete[] ids;
return ospMesh;
}
//------------------------------------------------------------------------------
OSPMaterial MakeActorMaterial(vtkOSPRayRendererNode *orn,
OSPRenderer oRenderer, vtkProperty *property,
double *ambientColor,
double *diffuseColor,
float *specularf,
double opacity,
bool pt_avail,
bool &useCustomMaterial,
std::map<std::string, OSPMaterial> &mats,
const std::string& materialName)
{
useCustomMaterial = false;
OSPMaterial oMaterial;
if (pt_avail && property->GetMaterialName())
{
if (std::string("Value Indexed") == property->GetMaterialName())
{
oMaterial = ospNewMaterial(oRenderer, "OBJMaterial");
vtkOSPRayMaterialHelpers::MakeMaterials(orn, oRenderer, mats);
std::string requested_mat_name = materialName;
if (requested_mat_name != "" && requested_mat_name != "Value Indexed")
{
oMaterial = vtkOSPRayMaterialHelpers::MakeMaterial
(orn, oRenderer, requested_mat_name.c_str());
useCustomMaterial = true;
}
}
else
{
oMaterial = vtkOSPRayMaterialHelpers::MakeMaterial
(orn, oRenderer, property->GetMaterialName());
useCustomMaterial = true;
}
}
else
{
oMaterial = ospNewMaterial(oRenderer, "OBJMaterial");
}
float lum = static_cast<float>(vtkOSPRayActorNode::GetLuminosity(property));
float ambientf[] =
{
static_cast<float>(ambientColor[0]*property->GetAmbient()),
static_cast<float>(ambientColor[1]*property->GetAmbient()),
static_cast<float>(ambientColor[2]*property->GetAmbient())
};
float diffusef[] =
{
static_cast<float>(diffuseColor[0]*property->GetDiffuse()),
static_cast<float>(diffuseColor[1]*property->GetDiffuse()),
static_cast<float>(diffuseColor[2]*property->GetDiffuse())
};
if (lum>0.0)
{
oMaterial = ospNewMaterial(oRenderer, "Luminous");
ospSet3fv(oMaterial, "color", diffusef);
ospSetf(oMaterial, "intensity", lum);
}
float specPower =
static_cast<float>(property->GetSpecularPower());
float specAdjust = 2.0f/(2.0f+specPower);
specularf[0] = static_cast<float>(property->GetSpecularColor()[0]*
property->GetSpecular()*
specAdjust);
specularf[1] = static_cast<float>(property->GetSpecularColor()[1]*
property->GetSpecular()*
specAdjust);
specularf[2] = static_cast<float>(property->GetSpecularColor()[2]*
property->GetSpecular()*
specAdjust);
if (!useCustomMaterial)
{
ospSet3fv(oMaterial,"Ka",ambientf);
if (property->GetDiffuse()==0.0)
{
//a workaround for ParaView, remove when ospray supports Ka
ospSet3fv(oMaterial,"Kd",ambientf);
}
else
{
ospSet3fv(oMaterial,"Kd",diffusef);
}
ospSet3fv(oMaterial,"Ks",specularf);
ospSet1f(oMaterial,"Ns",specPower);
ospSet1f(oMaterial,"d",float(opacity));
}
return oMaterial;
}
//------------------------------------------------------------------------------
OSPMaterial MakeActorMaterial(vtkOSPRayRendererNode *orn,
OSPRenderer oRenderer, vtkProperty *property,
double *ambientColor,
double *diffuseColor,
float *specularf,
double opacity)
{
bool dontcare1;
std::map<std::string, OSPMaterial> dontcare2;
return MakeActorMaterial(orn,
oRenderer, property,
ambientColor,
diffuseColor,
specularf,
opacity,
false,
dontcare1,
dontcare2,
"");
};
}
//============================================================================
vtkStandardNewMacro(vtkOSPRayPolyDataMapperNode);
//----------------------------------------------------------------------------
vtkOSPRayPolyDataMapperNode::vtkOSPRayPolyDataMapperNode()
{
this->OSPMeshes = nullptr;
}
//----------------------------------------------------------------------------
vtkOSPRayPolyDataMapperNode::~vtkOSPRayPolyDataMapperNode()
{
delete (vtkosp::MyGeom*)this->OSPMeshes;
}
//----------------------------------------------------------------------------
void vtkOSPRayPolyDataMapperNode::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
void vtkOSPRayPolyDataMapperNode::ORenderPoly(
void *renderer, void *model,
vtkOSPRayActorNode *aNode, vtkPolyData * poly,
double *ambientColor,
double *diffuseColor,
double opacity,
std::string materialName)
{
//todo: this is ugly {
vtkOSPRayRendererNode *orn =
static_cast<vtkOSPRayRendererNode *>(
this->GetFirstAncestorOfType("vtkOSPRayRendererNode"));
OSPRenderer oRenderer = static_cast<OSPRenderer>(renderer);
OSPModel oModel = static_cast<OSPModel>(model);
vtkActor *act = vtkActor::SafeDownCast(aNode->GetRenderable());
vtkProperty *property = act->GetProperty();
vtkosp::MyGeom *myMeshes = (vtkosp::MyGeom*)this->OSPMeshes;
//make geometry
std::vector<double> _vertices;
vtkPolyDataMapperNode::TransformPoints(act, poly, _vertices);
size_t numPositions = _vertices.size()/3;
osp::vec3fa *vertices = new osp::vec3fa[numPositions];
for (size_t i = 0; i < numPositions; i++)
{
vertices[i] =
osp::vec3fa{static_cast<float>(_vertices[i*3+0]),
static_cast<float>(_vertices[i*3+1]),
static_cast<float>(_vertices[i*3+2])};
}
OSPData position = ospNewData(numPositions, OSP_FLOAT3A, &vertices[0]);
ospCommit(position);
_vertices.clear();
//make connectivity
vtkPolyDataMapperNode::vtkPDConnectivity conn;
vtkPolyDataMapperNode::MakeConnectivity(poly, property->GetRepresentation(),
conn);
//choosing sphere and cylinder radii (for points and lines) that
//approximate pointsize and linewidth
vtkMapper *mapper = act->GetMapper();
double length = 1.0;
if (mapper)
{
length = mapper->GetLength();
}
double pointSize = length/1000.0 * property->GetPointSize();
double lineWidth = length/1000.0 * property->GetLineWidth();
//finer control over sphere and cylinders sizes
int enable_scaling =
vtkOSPRayActorNode::GetEnableScaling(act);
vtkDataArray *scaleArray = nullptr;
vtkPiecewiseFunction *scaleFunction = nullptr;
if (enable_scaling && mapper)
{
vtkInformation *mapInfo = mapper->GetInformation();
char *scaleArrayName = (char *)mapInfo->Get
(vtkOSPRayActorNode::SCALE_ARRAY_NAME());
scaleArray = poly->GetPointData()->GetArray(scaleArrayName);
scaleFunction = vtkPiecewiseFunction::SafeDownCast
(mapInfo->Get(vtkOSPRayActorNode::SCALE_FUNCTION()));
}
//per actor material
float specularf[3];
bool useCustomMaterial = false;
std::map<std::string, OSPMaterial > mats;
bool pt_avail =
orn->GetRendererType(
vtkRenderer::SafeDownCast(orn->GetRenderable()))
==
std::string("pathtracer");
//}
OSPMaterial oMaterial = vtkosp::MakeActorMaterial(orn, oRenderer, property,
ambientColor,
diffuseColor,
specularf,
opacity,
pt_avail,
useCustomMaterial,
mats,
materialName
);
ospCommit(oMaterial);
//texture
int numTextureCoordinates = 0;
float *textureCoordinates = nullptr;
if (vtkDataArray *da = poly->GetPointData()->GetTCoords())
{
numTextureCoordinates = da->GetNumberOfTuples();
textureCoordinates = new float[numTextureCoordinates*2];
float *tp = textureCoordinates;
for (int i=0; i<numTextureCoordinates; i++)
{
*tp = static_cast<float>(da->GetTuple(i)[0]);
tp++;
*tp = static_cast<float>(da->GetTuple(i)[1]);
tp++;
}
numTextureCoordinates = numTextureCoordinates*2;
}
vtkTexture *texture = act->GetTexture();
vtkImageData* vColorTextureMap = nullptr;
if (texture)
{
vColorTextureMap = vtkImageData::SafeDownCast
(texture->GetInput());
}
//colors from point and cell arrays
int numCellMaterials = 0;
OSPData cellMaterials = nullptr;
int numPointColors = 0;
osp::vec4f *pointColors = nullptr;
int numPointValueTextureCoords = 0;
float *pointValueTextureCoords = nullptr;
//
//now ask mapper to do most of the work and provide use with
//colors per cell and colors or texture coordinates per point
vtkUnsignedCharArray *vColors = nullptr;
vtkFloatArray *vColorCoordinates = nullptr;
vtkImageData* pColorTextureMap = nullptr;
int cellFlag = -1; //mapper tells us which
if (mapper)
{
mapper->MapScalars(poly, 1.0, cellFlag);
vColors = mapper->GetColorMapColors();
vColorCoordinates = mapper->GetColorCoordinates();
pColorTextureMap = mapper->GetColorTextureMap();
}
if (vColors)
{
if (cellFlag==2 && mapper->GetFieldDataTupleId() > -1)
{
//color comes from field data entry
bool use_material = false;
//check if the field data content says to use a material lookup
vtkScalarsToColors *s2c = mapper->GetLookupTable();
bool try_mats =
s2c->GetIndexedLookup() &&
s2c->GetNumberOfAnnotatedValues() &&
mats.size()>0;
if (try_mats)
{
int cflag2 =-1;
vtkAbstractArray *scalars = mapper->GetAbstractScalars
(poly, mapper->GetScalarMode(), mapper->GetArrayAccessMode(),
mapper->GetArrayId(), mapper->GetArrayName(), cflag2);
vtkVariant v = scalars->GetVariantValue(mapper->GetFieldDataTupleId());
vtkIdType idx = s2c->GetAnnotatedValueIndex(v);
if (idx > -1)
{
std::string name(s2c->GetAnnotation(idx));
if (mats.find(name) != mats.end())
{
//yes it does!
oMaterial = mats[name];
ospCommit(oMaterial);
use_material = true;
}
}
}
if (!use_material)
{
//just use the color for the field data value
int numComp = vColors->GetNumberOfComponents();
unsigned char *colorPtr = vColors->GetPointer(0);
colorPtr = colorPtr + mapper->GetFieldDataTupleId()*numComp;
// this setting (and all the other scalar colors)
// really depends on mapper->ScalarMaterialMode
// but I'm not sure Ka is working currently so leaving it on Kd
float fdiffusef[] =
{
static_cast<float>(colorPtr[0]*property->GetDiffuse()/255.0f),
static_cast<float>(colorPtr[1]*property->GetDiffuse()/255.0f),
static_cast<float>(colorPtr[2]*property->GetDiffuse()/255.0f)
};
ospSet3fv(oMaterial,"Kd",fdiffusef);
ospCommit(oMaterial);
}
}
else if (cellFlag==1)
{
//color or material on cell
vtkScalarsToColors *s2c = mapper->GetLookupTable();
std::vector<OSPMaterial> cellColors;
vtkosp::CellMaterials(poly, mapper, s2c, mats, oRenderer, cellColors,
vColors, specularf, float(property->GetSpecularPower()), opacity);
numCellMaterials = static_cast<int>(cellColors.size());
cellMaterials = ospNewData(cellColors.size(), OSP_OBJECT, &cellColors[0]);
ospCommit(cellMaterials);
cellColors.clear();
}
else if (cellFlag==0)
{
//color on point interpolated RGB
numPointColors = vColors->GetNumberOfTuples();
pointColors = new osp::vec4f[numPointColors];
for (int i = 0; i < numPointColors; i++)
{
unsigned char *color = vColors->GetPointer(4 * i);
pointColors[i] = osp::vec4f{color[0] / 255.0f,
color[1] / 255.0f,
color[2] / 255.0f,
1.f};
}
}
}
else
{
if (vColorCoordinates && pColorTextureMap)
{
//color on point interpolated values (subsequently colormapped via 1D LUT)
numPointValueTextureCoords = vColorCoordinates->GetNumberOfTuples();
pointValueTextureCoords = new float[numPointValueTextureCoords];
float *tc = vColorCoordinates->GetPointer(0);
for (int i = 0; i < numPointValueTextureCoords; i++)
{
pointValueTextureCoords[i] = *tc;
tc+=2;
}
vColorTextureMap = pColorTextureMap;
}
}
//create an ospray mesh for the vertex cells
if (conn.vertex_index.size())
{
myMeshes
->Add(vtkosp::RenderAsSpheres(vertices,
conn.vertex_index, conn.vertex_reverse,
pointSize, scaleArray, scaleFunction,
useCustomMaterial,
oMaterial,
vColorTextureMap,
numTextureCoordinates, textureCoordinates,
numCellMaterials, cellMaterials,
numPointColors, pointColors,
numPointValueTextureCoords, pointValueTextureCoords,