PanoViewer
a small panoramic image viewer for equirectangular projections written in C++ using OpenGL. Projection is done directly in the fragment shader on the GPU, and it uses a tiling method to be able to load large images that exceed the maximum size of a texture on the graphics card.
Dependencies
PanoViewer depends on GLEW http://glew.sourceforge.net/ and GLFW 3 http://www.glfw.org/ for platform independent OpenGL and libjpeg http://www.ijg.org/ for loading jpg's.
Libjpeg is statically included in the code, just put the content of jpegsr.zip from the IJG in the "libjpeg" subdirectory before running CMake
Usage
drag and rop any .jpg file on the panoviewer window to load the image
mouse:
- hold LMB and move : drag screen
- hold RMB and move : scroll in direction
keyboard:
- H to toggle on screen help text
- W,S to rotate view up/down
- Q,E to de/increase field of view
- C toggle compatibility render mode (shaders on/off)
- SPACE toggle on-screen text