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helixhorned e1845c8d05 In ext. PALETTE.DAT, store log2 of last alpha table index. Handle alpha in classic.
The extended PALETTE.DAT format can now carry a trailing byte, called
'lognumalphatables'. If it is present, the engine assumes that alpha blending
tables are loaded at blend indices 1 to 1<<lognumalphatables and handles
rotatesprite's alpha and spriteext[].alpha accordingly.
The ability to save this new byte is added to engine.lua:savePaletteDat()
and the corresponding convenience functions in shadexfog.lua.

Examples test/screentext.con and test/sprite_access.con are updated for
demonstration purposes.

git-svn-id: https://svn.eduke32.com/eduke32@4426 1a8010ca-5511-0410-912e-c29ae57300e0
2014-04-09 18:51:31 +00:00
polymer In ext. PALETTE.DAT, store log2 of last alpha table index. Handle alpha in classic. 2014-04-09 18:51:31 +00:00
.gitignore Remove polymer-perf related lines from .gitignore 2012-10-05 22:37:26 +00:00