Opengl
thebookofshaders.com
Gentle step-by-step guide through the abstract and complex universe of Fragment Shaders.
198,647 
$ 55,800.00
hardwareluxx.ru
Hardwareluxx - лучшие в России тесты и обзоры железа, комплектующих, компьютеров, ноутбуков, гаджетов, планшетов, смартфонов
65,100 $ 205,920.00
stellarium.org
Stellarium is a planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free.
103,784 $ 106,800.00
open.gl
An extensive, yet beginner friendly guide to using modern OpenGL for game development on all major platforms.
320,123 $ 25,920.00
codingunit.com
CodingUnit is your online resource for learning to program. Tutorials on C, C++, PHP, Python, MySQL, Java, JQuery, Opengl, DirectX and many more!
365,300 $ 22,680.00
stellarium-web.org
Stellarium Web is a planetarium running in your web browser. It shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.
126,329 $ 87,600.00