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authorDavid Thompson <dthompson2@worcester.edu>2016-01-11 08:37:42 -0500
committerDavid Thompson <dthompson2@worcester.edu>2016-01-12 08:38:44 -0500
commitd21b67eaad50c9389e1ad83cc595d2e77783942c (patch)
treefb2642a4c14f63d01a6d1fe193676b7ea024d866 /examples/common.scm
parent3c349c76e44ae4f5789a2f9e68f6ad260d212a30 (diff)
render: Add alpha value to render context.
Necessary for interpolating moving objects to avoid temporal aliasing. * sly/render.scm (<graphics>)[alpha]: New field. (graphics-alpha, set-graphics-alpha!): New procedure. * sly/game.scm (run-game-loop): Set the frame's alpha value before each render call.
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