Hello Will, I found some compiling problems with your 'latest' VTK (ftp://128.113.5.234/pub/vtk_nightly/). I downloaded it on Sunday, 26.09.1999. -rw-r--r-- 1 nuetzel users 3395421 Sep 26 16:44 vtk.tar.gz The problem seems to be gcc-2.95.1 (the 'new' official gcc release) or Mesa (3.1 beta3/CVS) related. But I think your coding brakes the ANSI C/C++ rules and the 'new' stricter gcc do not ignore it any longer. c++ -O -pipe -fomit-frame-pointer -funroll-loops -fPIC -DVTK_USE_PTHREADS -D_HP_NO_FAST_MACROS -DHAVE_LIMITS_H -DHAVE_UNISTD_H -I. -I. -I./../graphics -DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../patented -DVTK_USE_PATENTED -I./../contrib -DVTK_USE_CONTRIB -DVTK_USE_OGLR -I/usr/X11R6/include -I./../common -c vtkOpenGLTexture.cxx -o vtkOpenGLTexture.o vtkOpenGLTexture.cxx: In method `unsigned char * vtkOpenGLTexture::ResampleToPowerOfTwo(int &, int &, unsigned char *, int)': vtkOpenGLTexture.cxx:378: warning: assignment to `unsigned char' from `float' c++ -O -pipe -fomit-frame-pointer -funroll-loops -fPIC -DVTK_USE_PTHREADS -D_HP_NO_FAST_MACROS -DHAVE_LIMITS_H -DHAVE_UNISTD_H -I. -I. -I./../graphics -DVTK_USE_GRAPHICS -I./../imaging -DVTK_USE_IMAGING -I./../patented -DVTK_USE_PATENTED -I./../contrib -DVTK_USE_CONTRIB -DVTK_USE_OGLR -I/usr/X11R6/include -I./../common -c vtkOpenGLVolumeTextureMapper2D.cxx -o vtkOpenGLVolumeTextureMapper2D.ovtkOpenGLVolumeTextureMapper2D.cxx: In method `void vtkOpenGLVolumeTextureMapper2D::Render(vtkRenderer *, vtkVolume *)': vtkOpenGLVolumeTextureMapper2D.cxx:108: conversion from `int' to `enum GLenum' vtkOpenGLVolumeTextureMapper2D.cxx:118: conversion from `int' to `enum GLenum' vtkOpenGLVolumeTextureMapper2D.cxx:140: conversion from `int' to `enum GLenum' make[1]: *** [vtkOpenGLVolumeTextureMapper2D.o] Error 1 make[1]: Leaving directory `/usr/local/vtk/vtk/graphics' make: *** [build_graphics] Error 2 958.520u 33.040s 16:35.07 99.6% 0+0k 0+0io 501321pf+0w Here comes the (broken) code: [snip] // Use the OpenGL clip planes clipPlanes = this->ClippingPlanes; if ( clipPlanes ) { numClipPlanes = clipPlanes->GetNumberOfItems(); if (numClipPlanes > 6) { vtkErrorMacro(<< "OpenGL guarantees only 6 additional clipping planes"); } for (i = 0; i < numClipPlanes; i++) { ! glEnable(GL_CLIP_PLANE0+i); plane = (vtkPlane *)clipPlanes->GetItemAsObject(i); planeEquation[0] = plane->GetNormal()[0]; planeEquation[1] = plane->GetNormal()[1]; planeEquation[2] = plane->GetNormal()[2]; planeEquation[3] = -(planeEquation[0]*plane->GetOrigin()[0]+ planeEquation[1]*plane->GetOrigin()[1]+ planeEquation[2]*plane->GetOrigin()[2]); ! glClipPlane(GL_CLIP_PLANE0+i,planeEquation); } } this->GenerateTexturesAndRenderRectangles(); glDisable( GL_BLEND ); glDisable( GL_TEXTURE_2D ); // Turn lighting back on glEnable( GL_LIGHTING ); // pop transformation matrix glMatrixMode( GL_MODELVIEW ); glPopMatrix(); matrix->Delete(); if ( clipPlanes ) { for (i = 0; i < numClipPlanes; i++) { ! glDisable(GL_CLIP_PLANE0+i); } } Have you (all) any idea to fix this??? No, an older compiler should not be the solution! :-) Maybe some string manipulation (I know, this is a stupid idea...) Will, please upgrade your Linux test environment to at least RedHat 6.0 (maybe S.u.S.E. 6.2, the newest distribution you can get these days; Caldera x.x; Debian x.x; etc.). With that you get real multitasking/multithreading (glibc-2.1.x), the new gcc-2.95.1, Mesa-3.0 (3.1 beta2), etc... Thanks for your great visualization tool, Will!!! Dieter BTW For the Mesa guys, look at this location: http://www.kitware.com/vtk.html --- Dieter Nützel Graduate Student, Computer Science University of Hamburg Department of Computer Science Cognitive Systems Group Vogt-Kölln-Straße 30 D-22527 Hamburg, Germany email: Dieter Nützel <[EMAIL PROTECTED]> @home: Dieter Nützel <[EMAIL PROTECTED]> _________________________________________________________ DRI (Direct Rendering Infrastructure) for Linux. Because I do 3D medical visualization as my thesis. _________________________________________________________ _______________________________________________ Mesa-dev maillist - [EMAIL PROTECTED] http://lists.mesa3d.org/mailman/listinfo/mesa-dev
