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more tutorial work

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add fixed_timestep command-line parameter, 0 means disabled (variable timestep)
This commit is contained in:
erwincoumans
2015-08-07 14:18:57 -07:00
parent 89c2a729ce
commit de4dcdbb18
6 changed files with 555 additions and 3 deletions
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12
examples/ExampleBrowser/OpenGLExampleBrowser.cpp
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@@ -58,6 +58,7 @@ static int sCurrentDemoIndex = -1;
static int sCurrentHightlighted = 0;
static CommonExampleInterface* sCurrentDemo = 0;
static b3AlignedObjectArray<const char*> allNames;
static float gFixedTimeStep = 0;
static class ExampleEntries* gAllExamples=0;
bool sUseOpenGL2 = false;
@@ -358,6 +359,8 @@ static void saveCurrentSettings(int currentEntry,const char* startFileName)
fprintf(f,"--background_color_red= %f\n", red);
fprintf(f,"--background_color_green= %f\n", green);
fprintf(f,"--background_color_blue= %f\n", blue);
fprintf(f,"--fixed_timestep= %f\n", gFixedTimeStep);
if (enable_experimental_opencl)
{
@@ -663,6 +666,7 @@ bool OpenGLExampleBrowser::init(int argc, char* argv[])
loadCurrentSettings(startFileName, args);
args.GetCmdLineArgument("fixed_timestep",gFixedTimeStep);
///The OpenCL rigid body pipeline is experimental and
///most OpenCL drivers and OpenCL compilers have issues with our kernels.
@@ -984,7 +988,13 @@ void OpenGLExampleBrowser::update(float deltaTime)
}
sCurrentDemo->stepSimulation(deltaTime);//1./60.f);
if (gFixedTimeStep>0)
{
sCurrentDemo->stepSimulation(gFixedTimeStep);
} else
{
sCurrentDemo->stepSimulation(deltaTime);//1./60.f);
}
}
if (renderVisualGeometry && ((gDebugDrawFlags&btIDebugDraw::DBG_DrawWireframe)==0))