fv

fv is an HDRI (High Dynamic Range Image) viewer. It utilizes OpenGL and GLUT so that it is highly portable. Currently supported formats are the followings:

Greg Ward's HDR (also known as Radiance/PIC/RGBE). See RGBE File Format for details.
Paul Debevec's PFM (Portable Float Map). See PFM Format Description for details.

fv reads data from the standard input or files specified as arguments. In the latter case, each file may be compressed one with gzip or bzip2. The file may also change after fv is invoked, except its header part. fv checks whether the file changes and updates the display if necessary. This feature is useful for checking intermediate outputs from renderers.

What's New

May 5 2012, version 1.03
- fixed the pfm reader to follow the latest spec.
- added support for xz (lzma) compressed files.
Oct 7 2006, version 1.02
- modified texture images to have edge-margins for avoiding GL_CLAMP issues, while not using GL_CLAMP_TO_EDGE (so the program should still run on GL1.1).
- moved glViewport() to display() because it doesn't work after glutFullScreen() on MacOSX.
- added MacOSX as a target.
- modified reshape() not to align width/height to even numbers.
Feb 26 2005, version 1.01
- fixed a bug in CReaderHDR.c (incorrectly handling non-RLE data).
Dec 5 2004, version 1.00
- initial release.

fv-src-1.03.zip: The fv source code. This can be compiled on Linux, and perhaps on other unix flavours.
fv-src-1.03-win32.zip: The fv source code with supplement libraries (bzip2, freeglut, lzma, png, pthread, and zlib). This can be compiled on Cygwin.