Changeset 4484 for OpenSceneGraph/trunk/examples/osgcamera/osgcamera.cpp

Timestamp:

08/31/05 14:49:23 (8 years ago)

Author:

robert

Message:

Disable the glFinishBarrierOp usage as glFinish was spin locking the CPU :-|

Files:

• OpenSceneGraph/trunk/examples/osgcamera/osgcamera.cpp (modified) (4 diffs)

OpenSceneGraph/trunk/examples/osgcamera/osgcamera.cpp

@@ -143 +143 @@
 
 
-    unsigned int numberCameras = 3;
+    unsigned int numberCameras = 1;
     unsigned int xpos = 0;
     unsigned int ypos = 400;
@@ -243 +243 @@
     // we can put a finish in to gate rendering throughput, so that each new frame starts with a clean sheet.
     // you should only enable one of these, doFinishBeforeNewDraw will allow for the better parallism of the two finish approaches
-    bool doFinishBeforeNewDraw = true;
+    // note, both are disabled right now, as glFinish is spin locking the CPU, not something that we want...
+    bool doFinishBeforeNewDraw = false;
     bool doFinishAfterSwap = false;
 
@@ -288 +289 @@
 
         context->getGraphicsThread()->add(frameEndBarrierOp.get(), false);
-        context->getGraphicsThread()->add(preSwapBarrierOp.get(), false);
+        // context->getGraphicsThread()->add(preSwapBarrierOp.get(), false);
         context->getGraphicsThread()->add(swapOp.get(), false);
         
@@ -311 +312 @@
         frameStamp->setFrameNumber(frameNum++);
         
-        std::cout<<"Frame rate "<<1.0/osg::Timer::instance()->delta_s(previous_tick,current_tick)<<std::endl;
+        //std::cout<<"Frame rate "<<1.0/osg::Timer::instance()->delta_s(previous_tick,current_tick)<<std::endl;
         previous_tick = current_tick;