FGFS-4.1/OpenSceneGraph
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Added minimum frame delay of 1/100th second when using

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on demand rendering to avoid creating a CPU lock.
This commit is contained in:
Robert Osfield 2010-04-14 13:39:43 +00:00
parent 9df9778658
commit b6a5754127
1 changed files with 11 additions and 1 deletions
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12
src/osgViewer/ViewerBase.cpp
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@ -599,7 +599,17 @@ int ViewerBase::run()
osg::Timer_t startFrameTick = osg::Timer::instance()->tick();
if (_runFrameScheme==ON_DEMAND)
{
if (checkNeedToDoFrame()) frame();
if (checkNeedToDoFrame())
{
frame();
}
else
{
// we don't need to render a frame but we don't want to spin the run loop so make sure the minimum
// loop time is 1/100th of second, if not otherwise set, so enabling the frame microSleep below to
// avoid consume excessive CPU resources.
if (minFrameTime==0.0) minFrameTime=0.01;
}
}
else
{