Powerful and easy-to-use embedded GUI library with many widgets
Library to encode and decode images in WebP format
Retro Computer Image Library
Display, convert, and edit raster image and vector image files
Cross Platform GUI Toolkit
3D Without Boundaries
A small C library for building user interfaces with C, XML and CSS.
A really simple (following K.I.S.S statement) ray tracing project.
PHIGS (Programmer's Hierarchical Interactive Graphics System)
Multimedia asset management and manipulator for Étoilé
Renderer for subtitle format SSB.
an interactive 3D viewing program
C/C++ library to add light and intuitive GUI to OpenGL and DX programs