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added 16-bit/channel rendering info

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Brian Paul
2001-04-26 22:33:34 +00:00
parent 785c3469f4
commit 4dbd625eaf
1 changed files with 10 additions and 10 deletions
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docs/RELNOTES-3.5
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@@ -193,19 +193,19 @@ interface structures like __GLimports and __GLexports.
Internal color values 16-bit color channels
--------------------- ---------------------
Previously, Mesa treated color channel values as GLubytes in [0,255]. There's experimental support for 16-bit color channels (64-bit pixels)
Mesa 3.5 uses the GLchan datatype for color channel values. In the in Mesa 3.5. Only the OSMesa interface can be used for 16-bit rendering.
future it will be possible to define GLchan to be larger than a byte Type "make linux-osmesa16" in the top-level directory to build the
in order to support high-precision colors. special libOSMesa16.so library.
Many, many occurances of GLubyte have been replaced with GLchan This hasn't been tested very thoroughly yet so please file bug reports
and many occurances of the number 255 have been replaced with CHAN_MAX. if you have trouble.
Support for CHAN_BITS > 8 is not ready yet but will be eventually.
In the future I hope to implement support for 32-bit, floating point
color channels.
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$Id: RELNOTES-3.5,v 1.11 2001/04/20 02:34:12 brianp Exp $ $Id: RELNOTES-3.5,v 1.12 2001/04/26 22:33:34 brianp Exp $