BackfaceCulling
VTKExamples/Java/Visualization/BackfaceCulling
Description¶
This example renders a sphere with backface culling enabled.
If backface culling is on, polygons facing away from camera are not drawn.
Other Languages
See (Cxx)
Code¶
BackfaceCulling.java
import vtk.vtkActor; import vtk.vtkSphereSource; import vtk.vtkNativeLibrary; import vtk.vtkPolyDataMapper; import vtk.vtkRenderWindow; import vtk.vtkNamedColors; import vtk.vtkRenderer; import vtk.vtkRenderWindowInteractor; public class BackfaceCulling { // ----------------------------------------------------------------- // Load VTK library and print which library was not properly loaded static { if (!vtkNativeLibrary.LoadAllNativeLibraries()) { for (vtkNativeLibrary lib : vtkNativeLibrary.values()) { if (!lib.IsLoaded()) { System.out.println(lib.GetLibraryName() + " not loaded"); } } } vtkNativeLibrary.DisableOutputWindow(null); } // ----------------------------------------------------------------- public static void main(String args[]) { vtkNamedColors colors = new vtkNamedColors(); //For Actor Color double actorColor[] = new double[4]; //Renderer Background Color double Bgcolor[] = new double[4]; colors.GetColor("Tan", actorColor); colors.GetColor("Aquamarine", Bgcolor); //Create a Sphere vtkSphereSource Sphere = new vtkSphereSource(); Sphere.Update(); //Create a Mapper and Actor vtkPolyDataMapper Mapper = new vtkPolyDataMapper(); Mapper.SetInputConnection(Sphere.GetOutputPort()); vtkActor Actor = new vtkActor(); Actor.SetMapper(Mapper); Actor.GetProperty().SetColor(actorColor); //Enable BackFaceCulling Actor.GetProperty().BackfaceCullingOn(); // Create the renderer, render window and interactor. vtkRenderer ren = new vtkRenderer(); vtkRenderWindow renWin = new vtkRenderWindow(); renWin.AddRenderer(ren); vtkRenderWindowInteractor iren = new vtkRenderWindowInteractor(); iren.SetRenderWindow(renWin); // Visualize the actor ren.AddActor(Actor); ren.SetBackground(Bgcolor); renWin.SetSize(300, 300); renWin.Render(); iren.Initialize(); iren.Start(); } }