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• s.Oliver
  
  Community Member
  3 posts

  how to get actors

  25 February 2010 at 8:20pm

  Hi,

  i'm trying to create a game with XNA and PhysX-sharp.

  My problem is: actors are always null.

  the scene itself is initialized correctly (i guess so, there were no errors), but i can't create actors with scene.createActor(actordescription), it always returns null. actordescription.IsValid returns true.

  I'm using XNA 3.1 (doesn't matter, or does it?), PhysX-Sharp 0.9.3, got the latest PhysX-Driver and PhysX-SDK 2.8.1.

  Hope anybody can help.

  Code:

   
  //global
  Nx.scene
   
  //initialize
  Nx.NxPhysicsSDKDesc sdkdesc = new Nx.NxPhysicsSDKDesc();
  Nx.NxSDKCreateError err = Nx.NxSDKCreateError.NXCE_NO_ERROR;
   
  sdk = Nx.PhysXLoader.NxCreatePhysicsSDK(Nx.PhysXLoader.NX_PHYSICS_SDK_VERSION, sdkdesc, ref err);
  Nx.NxSceneDesc sceneDesc = new Nx.NxSceneDesc();
   
  scene = sdk.createScene(sceneDesc);
   
   
   
  //procedure: NxActor CreateBox(Matrix world, Vector3 dim, float mass)
  Nx.NxBoxShapeDesc boxDesc = new Nx.NxBoxShapeDesc();
   
  boxDesc.dimensions = swapper.CreateNxVector(dim); //swapper is a little swapper for XNA-Vectors and matrices and physx
   
  Nx.NxActorDesc actorDesc = new Nx.NxActorDesc();
  Nx.NxBodyDesc bodyDesc = new Nx.NxBodyDesc();
   
   
  bodyDesc.mass = mass;
   
  actorDesc.body = bodyDesc;
  actorDesc.density = 10.0f;
   
  actorDesc.globalPose = swapper.CreateNxMat34(world);
   
  actorDesc.shapes.pushBack(boxDesc);
   
  if (!actorDesc.isValid())
    throw new Exception("Invalid Box"); //never thrown
   
  return scene.createActor(actorDesc);
   
   

• s.Oliver
  
  Community Member
  3 posts

  Re: how to get actors

  1 March 2010 at 9:29pm

  very well visited forum, i see...