[quake3-commits] [ioquake/ioq3] cbfc34: OpenGL2: Switch to RGTC from LATC for normal maps.

[SmileTheory]

  Branch: refs/heads/master
  Home:   https://github.com/ioquake/ioq3
  Commit: cbfc3471bc5058c6e8ada0e83555e512f8f51194
      https://github.com/ioquake/ioq3/commit/cbfc3471bc5058c6e8ada0e83555e512f8f51194
  Author: SmileTheory <SmileTheory at gmail.com>
  Date:   2015-12-15 (Tue, 15 Dec 2015)

  Changed paths:
    M code/renderercommon/qgl.h
    M code/renderergl2/tr_extensions.c
    M code/renderergl2/tr_glsl.c
    M code/renderergl2/tr_image.c
    M code/renderergl2/tr_local.h
    M opengl2-readme.md

  Log Message:
  -----------
  OpenGL2: Switch to RGTC from LATC for normal maps.
Also added a RGTC compressor as a workaround on Intel graphics.