Hi,
This is not
actually a Java3d question. Hope you can help me with this.
I am using
Visualization Toolkit(VTK ref:www.vtk.org) for my 3d programming which comes
with a java binding. My application works well on Windows,Solaris and
Linux. But on HP UX I am facing lots of flickering while rendering the 3d
scene.
Similar to Java 3d's Canvas3D there is an equivalent class called
vtkCanvas which can be used for rendering 3d scenes. How vtk manages this is as
follows.
1. vtkRenderWindow is the c++ class that draws the 3d
scene.
2. using JNI, the vtkRenderWindow is fixed on to java.awt.Canvas.
Following is the relevent C++ code
vtkRenderWindow
*temp0;
//.....get the vtkRenderWindow object i.e. temp0
JAWT_X11DrawingSurfaceInfo* dsi_x11;
dsi_x11 =
(JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo; //dsi is the
JAWT_DrawingSurfaceInfo* pointer of the Canvas
temp0->SetDisplayId((void *)dsi_x11->display);
temp0->SetWindowId((void *)dsi_x11->drawable);
temp0->SetParentId((void *)dsi_x11->display);
With this default
settings, I get lots of flickering. But if I change the code to
temp0->SetDisplayId((void *)dsi_x11->display);
//temp0->SetWindowId((void
*)dsi_x11->drawable);
temp0->SetParentId((void
*)dsi_x11->drawable);
the flickering goes off but I get wierd repainting problems (This problem exists only on HP UX). So my question is, has SUN released the C++ code where Canvas3D is mapped to the native OpenGL window? or does any body knows what exactly is going wrong in the above code? I have attached the complete C++ code used in JNI mapping. Can some body please help me with this.
Thanks and Regards
Shyam
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vtkJavaAwt.h
Description: Binary data
