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GRIM: Draw the scene before updating the lua

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This commit is contained in:
Joel Teichroeb 2013-05-07 18:57:03 -07:00
parent b1967abd7d
commit bcf6c8ed48
1 changed files with 10 additions and 1 deletions
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11
engines/grim/grim.cpp
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@ -692,10 +692,19 @@ void GrimEngine::mainLoop() {
_refreshDrawNeeded = true;
}
if (_mode != PauseMode) {
// Draw the display scene before doing the luaUpdate.
// This give a large performance boost as OpenGL stores commands
// in a queue on the gpu to be rendered later. When doFlip is
// called the cpu must wait for the gpu to finish its queue.
// Now, it will queue all the OpenGL commands and draw them on the
// GPU while the CPU is busy updating the game world.
updateDisplayScene();
}
luaUpdate();
if (_mode != PauseMode) {
updateDisplayScene();
doFlip();
}