convert radiance file (.hdr) to png. Radiance RGBE component are wrote "as-is" as RGBA png data
Build project using cmake.
First install dependencies
$ cd <hdr2png_project>
$ git submodule init
$ git submodule update
$ cd <hdr2png_project>
$ mkdir _build
$ cd _build
$ cmake ../
$ make
$ hdr2png -i sources/tex.hdr -o bin/tex.png