Mike Erwin 060bf1bd28 OpenGL: draw empties without GLU
Also reduced number of matrix ops by generating final positions directly.

Also removed a display list (deprecated in modern GL).

Tried to reuse sinval & cosval tables but those values are skewed (last value repeats first value, middle values are squished to compensate). Went with sinf & cosf instead.

Part of T49042
2016-08-25 13:45:39 -04:00
2016-08-25 13:45:39 -04:00
2016-08-01 11:02:01 +10:00
2013-12-24 22:57:27 +06:00
2016-07-15 01:28:00 +10:00
2016-07-15 01:26:26 +10:00
2016-02-10 00:26:12 +11:00
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