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NAME

       VolPack - introduction to VolPack, a library for volume rendering

SYNOPSIS

       #include <volpack.h>

       cc file.c -lvolpack -lm

DESCRIPTION

       VolPack  is  a  portable  software library for volume rendering.  It is
       based on a new family of fast volume rendering algorithms (see Philippe
       Lacroute  and  Marc  Levoy,  Fast  Volume  Rendering Using a Shear-Warp
       Factorization of the Viewing  Transformation,  Proc. SIGGRAPH  ’94,  in
       Computer Graphics, Annual Conference Series, 1994, pp. 451-458).  For a
       tutorial introduction to the library see the VolPack Users Guide.

       The following list includes all of the functions in the library grouped
       by general function, along with the corresponding man pages.

   Rendering Contexts
       vpCreateContext               vpCreateContext(3)
       vpDestroyContext              vpCreateContext(3)

   Volumes
       vpSetVolumeSize               vpSetVolumeSize(3)
       vpSetVoxelSize                vpSetVoxelSize(3)
       vpSetVoxelField               vpSetVoxelField(3)
       vpFieldOffset                 vpSetVoxelField(3)
       vpSetRawVoxels                vpSetRawVoxels(3)
       vpVolumeNormals               vpVolumeNormals(3)
       vpScanlineNormals             vpScanlineNormals(3)
       vpNormalIndex                 vpNormalIndex(3)
       vpNormal                      vpNormalIndex(3)

   Classified Volumes
       vpSetClassifierTable          vpSetClassifierTable(3)
       vpClassifyVolume              vpClassifyVolume(3)
       vpDestroyClassifiedVolume     vpClassifyVolume(3)
       vpClassifyScalars             vpClassifyScalars(3)
       vpClassifyScanline            vpClassifyScanline(3)

   Min-Max Octrees
       vpCreateMinMaxOctree          vpCreateMinMaxOctree(3)
       vpMinMaxOctreeThreshold       vpCreateMinMaxOctree(3)
       vpDestroyMinMaxOctree         vpCreateMinMaxOctree(3)
       vpOctreeMask                  vpOctreeMask(3)

   View Transformations
       vpCurrentMatrix               vpCurrentMatrix(3)
       vpIdentityMatrix              vpIdentityMatrix(3)
       vpTranslate                   vpTranslate(3)
       vpRotate                      vpRotate(3)
       vpScale                       vpScale(3)
       vpMultMatrix                  vpMultMatrix(3)
       vpSetMatrix                   vpSetMatrix(3)
       vpWindow                      vpWindow(3)
       vpWindowPHIGS                 vpWindowPHIGS(3)

   Shading and Lighting
       vpSetLookupShader             vpSetLookupShader(3)
       vpSetShadowLookupShader       vpSetShadowLookupShader(3)
       vpSetLight                    vpSetLight(3)
       vpSetMaterial                 vpSetMaterial(3)
       vpShadeTable                  vpShadeTable(3)
       vpSetDepthCueing              vpSetDepthCueing(3)

   Rendering
       vpSetImage                    vpSetImage(3)
       vpRenderClassifiedVolume      vpRenderRawVolume(3)
       vpRenderRawVolume             vpRenderRawVolume(3)

   State Variables
       vpEnable                      vpEnable(3)
       vpSeti                        vpSeti(3)
       vpSetd                        vpSeti(3)
       vpGeti                        vpGeti(3)
       vpGetd                        vpGeti(3)
       vpGetp                        vpGeti(3)
       vpGetMatrix                   vpGetMatrix(3)
       vpGetMaterial                 vpGetvpSetMaterial(3)
       vpGetLight                    vpGetvpSetLight(3)
       vpSetCallback                 vpSetCallback(3)
       vpSetClientData               vpSetClientData(3)

   File I/O
       vpLoadClassifiedVolume        vpLoadRawVolume(3)
       vpLoadMinMaxOctree            vpLoadRawVolume(3)
       vpLoadRawVolume               vpLoadRawVolume(3)
       vpLoadContext                 vpLoadRawVolume(3)
       vpStoreClassifiedVolume       vpStoreRawVolume(3)
       vpStoreMinMaxOctree           vpStoreRawVolume(3)
       vpStoreRawVolume              vpStoreRawVolume(3)
       vpStoreContext                vpStoreRawVolume(3)

   Utility Functions
       vpRamp                        vpRamp(3)
       vpExtract                     vpExtract(3)
       vpTranspose                   vpTranspose(3)
       vpResample                    vpResample(3)
       vpSetFilter                   vpSetFilter(3)
       vpBoxFilter                   vpBoxFilter(3)
       vpLinearFilter                vpBoxFilter(3)
       vpBicubicFilter               vpBoxFilter(3)
       vpGaussianFilter              vpBoxFilter(3)
       vpIdentity3                   LinearAlgebra(3)
       vpIdentity4                   LinearAlgebra(3)
       vpSetVector3                  LinearAlgebra(3)
       vpSetVector4                  LinearAlgebra(3)
       vpNormalize3                  LinearAlgebra(3)
       vpMatrixVectorMult4           LinearAlgebra(3)
       vpMatrixMult4                 LinearAlgebra(3)
       vpCrossProduct                LinearAlgebra(3)
       vpSolveSystem4                LinearAlgebra(3)

   Error Handling
       vpGetError                    vpGetError(3)
       vpGetErrorString              vpGetError(3)

   Debugging
       vpSetDebug                    vpSetDebug(3)
       vpTracePixel                  vpTracePixel(3)
       vpGetImage                    vpGetvpSetImage(3)
       vpBruteForceRender            vpBruteForceRender(3)

DATA TYPES

       The  following  data  types  are  declared  in  the VolPack header file
       (volpack.h):

       vpContext
              An opaque handle for a rendering context.   A  context  contains
              all  of  the  information required to render a volume, including
              classification and shading parameters, the view  transformation,
              a description of the format of the volume data, and private data
              structures used by the rendering routines.

       vpResult
              A result code.  Most of the library  routines  return  the  code
              VP_OK  upon  successful  completion,  or  an  error  code if the
              library call fails.

       vpVector3
              A  three-element  linear  array  of  double-precision   elements
              (double[3]).

       vpVector4
              A   four-element  linear  array  of  double-precisions  elements
              (double[4]).

       vpMatrix3
              A   three-by-three   array    of    double-precision    elements
              (double[3][3]).

       vpMatrix4
              A    four-by-four    array    of    double-precision    elements
              (double[4][4]).

AVAILABILITY

       Source code and documentation for VolPack are available  free  via  the
       World  Wide  Web (http://www-graphics.stanford.edu/software/volpack) or
       by anonymous ftp (ftp://graphics.stanford.edu/pub/volpack).

SEE ALSO

       VolPack Users Guide