title: PhysX 3.2: Simple box dynamic are not moving
body: <p>I've uppgraded to PhysX 3.2 and have been struggling for days to have my test box moved by gravity but it simply won't to it.</p>
  
  <p>I've followed the PhysX documentation but implemented it in my way. It's pretty much a default setup:</p>
  
  <pre><code>        physx::PxSceneDesc sceneDesc = physx::PxSceneDesc((physx::PxTolerancesScale()));
          sceneDesc.gravity = physx::PxVec3(0.0f, -9.8f, 0.0f);
          if(!sceneDesc.cpuDispatcher)
          {
              physx::PxDefaultCpuDispatcher* mCpuDispatcher = physx::PxDefaultCpuDispatcherCreate(4);
              if(!mCpuDispatcher)
                  LOG("PxDefaultCpuDispatcherCreate failed!");
              sceneDesc.cpuDispatcher    = mCpuDispatcher;
          }
          if(!sceneDesc.filterShader)
              sceneDesc.filterShader    = &amp;physx::PxDefaultSimulationFilterShader;
  
  
          physxScene = physMgr-&gt;getSDK()-&gt;createScene(sceneDesc);
  </code></pre>
  
  <p>Creating the dynamic actor:</p>
  
  <pre><code>                PxRigidDynamic* body = mPxSDK-&gt;createRigidDynamic(Convert::toPxTransform(transform));
                  PxRigidBodyExt::updateMassAndInertia(*body, 1.0f);
                  mPxScene-&gt;addActor(*body);
  </code></pre>
  
  <p>Add the box shape:</p>
  
  <pre><code>            PxBoxGeometry geometry = PxBoxGeometry(Convert::toPxVector3(size));
              if(geometry.isValid())
              {
                  PxMaterial* material = api-&gt;createMaterial(0.5f, 0.5f, 0.1f);
                  PxShape* shape = createShape(actor, geometry, material);
                                      PxRigidBodyExt::updateMassAndInertia(*body, 33.0f);
              }
  </code></pre>
  
  <p>Simulating the scene as:</p>
  
  <pre><code>    float elapsedTime = float((float)mTime.getElapsedTime() / 1000.0f);
      mAccumulator += elapsedTime;
      if(mAccumulator &lt; mStepSize)
      {
          return;
      }
      else
      {
          mAccumulator -= mStepSize;
          mPxScene-&gt;simulate(mStepSize);
          mDynamicBodySys-&gt;updateGameObjectPositions();
          mPxScene-&gt;fetchResults(true);
          mTime.restart();
  
      }
  </code></pre>
  
  <p>When I look into the Visual Debugger I can see the box and the frame count increasing. But it's not moving. The actor's and the box shape seem to have the correct propeties. LinearVelocity is increasing in negative Y axis, its mass is 33 etc. But the pose is still zero/identity. What am I missing?</p>