PolyDataRIB
VTKExamples/Cxx/RenderMan/PolyDataRIB
Description
To see the RenderMan results for this example, download and install the non-commercial version of RenderMan.
Code
PolyDataRIB.cxx
#include <vtkXMLPolyDataReader.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkPolyDataNormals.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include "vtkRIBExporter.h"
#include "vtkRIBProperty.h"
#include <vtksys/SystemTools.hxx>
static vtkSmartPointer<vtkRIBProperty> spatter(const char *sizes,
const char *specksize,
const char *spattercolor,
const char *basecolor);
static vtkSmartPointer<vtkRIBProperty> rmarble(const char *veining);
int main ( int argc, char *argv[] )
{
// Parse command line arguments
if(argc < 2)
{
std::cerr << "Usage: " << argv[0]
<< " Filename(.vtp) [freqency]" << std::endl;
return EXIT_FAILURE;
}
const char *freq = "1";
if (argc > 2)
{
freq = argv[2];
}
std::string filename = argv[1];
std::string prefix = vtksys::SystemTools::GetFilenameWithoutExtension(filename);
// Read all the data from the file
vtkSmartPointer<vtkXMLPolyDataReader> reader =
vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName(filename.c_str());
reader->Update();
vtkSmartPointer<vtkPolyDataNormals> normals =
vtkSmartPointer<vtkPolyDataNormals>::New();
normals->SetInputConnection(reader->GetOutputPort());
// Visualize
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(normals->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
actor->SetProperty(rmarble(freq));
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderer->AddActor(actor);
renderer->SetBackground(.1, .3, .5); // Background color green
renderWindow->Render();
renderWindowInteractor->Start();
prefix = prefix + "_" + freq;
vtkSmartPointer<vtkRIBExporter> aRib =
vtkSmartPointer<vtkRIBExporter>::New();
aRib->BackgroundOn();
aRib->SetInput(renderWindow);
aRib->SetFilePrefix(prefix.c_str());
aRib->Write();
std::cout << "Exported RIB file is: " << prefix << ".rib" << std::endl;
if (getenv("RMANTREE") == NULL)
{
std::cout << "To render the generated rib file, set the environment variable RMANTREE to the base of your RenderMan install" << std::endl;
}
else
{
std::string rmantree = getenv("RMANTREE");
std::cout << "To create a tif file run: " << std::endl;
std::cout << rmantree << "bin/prman " << prefix << ".rib " << std::endl;
}
return EXIT_SUCCESS;
}
vtkSmartPointer<vtkRIBProperty> spatter(const char *sizes,
const char *specksize,
const char *spattercolor,
const char *basecolor)
{
vtkSmartPointer<vtkRIBProperty> spatterProp =
vtkSmartPointer<vtkRIBProperty>::New ();
spatterProp->SetVariable("sizes", "float");
spatterProp->AddVariable("specksize", "float");
spatterProp->AddVariable("spattercolor", "color");
spatterProp->AddVariable("basecolor", "color");
spatterProp->SetSurfaceShaderParameter("sizes", sizes);
spatterProp->AddSurfaceShaderParameter("specksize", specksize);
spatterProp->AddSurfaceShaderParameter("spattercolor", spattercolor);
spatterProp->AddSurfaceShaderParameter("basecolor", basecolor);
spatterProp->SetSurfaceShader("spatter");
return spatterProp;
}
vtkSmartPointer<vtkRIBProperty> rmarble(const char *veining)
{
vtkSmartPointer<vtkRIBProperty> rmarbleProp =
vtkSmartPointer<vtkRIBProperty>::New ();
rmarbleProp->SetVariable("veining", "float");
rmarbleProp->SetSurfaceShaderParameter("veining", veining);
rmarbleProp->SetSurfaceShader("rmarble");
return rmarbleProp;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(PolyDataRIB)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(PolyDataRIB MACOSX_BUNDLE PolyDataRIB.cxx)
target_link_libraries(PolyDataRIB ${VTK_LIBRARIES})
Download and Build PolyDataRIB
Click here to download PolyDataRIB and its CMakeLists.txt file. Once the tarball PolyDataRIB.tar has been downloaded and extracted,
cd PolyDataRIB/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./PolyDataRIB
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.