Backup diff of OpenGL/BPO (No. 1)

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  • 1 (2017-06-01 (Thu) 16:21:59)

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.

- OpenGL pixel buffer object
--  http://prog3.com/sbdm/blog/dreamcs/article/details/7708018

* glReadPixels [#glReadPixels]

- glReadPixels
--  https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glReadPixels.xml