private void resetRound(int side)
{
court.reset_point_scored();
ground_marker_node.RemoveChild(vball.getTransformNode());
vball = new VolleyBall(1f, GROUND_MARKER_SIZE / 2f, bounceSound, false);
// Perform initial manipulations
if (side == 0)
{
vball.translate(PLAYER_BALL_START);
}
else
{
vball.translate(OPPONENT_BALL_START);
}
ball_drop_delay = true;
ball_drop_countdown = 0;
}
protected override void Draw(GameTime gameTime)
{
// Set the render target for rendering the AR scene
scene.SceneRenderTarget = arViewRenderTarget;
// Set the scene background size to be the size of the AR scene viewport
scene.BackgroundBound = arViewRect;
// Set the camera to be the AR camera
scene.CameraNode = arCameraNode;
// Associate the overlaid model with the ground marker for rendering it in AR scene
scene.RootNode.RemoveChild(overlayNode.Parent);
groundMarkerNode.AddChild(overlayNode.Parent);
// Don't render the marker board and camera representation
markerBoardGeom.Enabled = false;
vrCameraRepNode.Enabled = false;
// Show the video background
scene.ShowCameraImage = true;
// Render the AR scene
scene.Draw(gameTime.ElapsedGameTime, gameTime.IsRunningSlowly);
// Set the render target for rendering the VR scene
scene.SceneRenderTarget = vrViewRenderTarget;
// Set the scene background size to be the size of the VR scene viewport
scene.BackgroundBound = vrViewRect;
// Set the camera to be the VR camera
scene.CameraNode = vrCameraNode;
// Remove the overlaid model from the ground marker for rendering it in VR scene
groundMarkerNode.RemoveChild(overlayNode.Parent);
scene.RootNode.AddChild(overlayNode.Parent);
// Render the marker board and camera representation in VR scene
markerBoardGeom.Enabled = true;
vrCameraRepNode.Enabled = true;
// Update the transformation of the camera representation in VR scene based on the
// marker array transformation
if (groundMarkerNode.MarkerFound)
{
vrCameraRepTransNode.WorldTransformation = Matrix.Invert(groundMarkerNode.WorldTransformation);
}
// Do not show the video background
scene.ShowCameraImage = false;
// Re-traverse the scene graph since we have modified it, and render the VR scene
scene.RenderScene(false, true);
// Set the render target back to the frame buffer
State.Device.SetRenderTarget(null);
// Render the two textures rendered on the render targets
State.SharedSpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.Opaque);
State.SharedSpriteBatch.Draw(arViewRenderTarget, arViewRect, Color.White);
State.SharedSpriteBatch.Draw(vrViewRenderTarget, vrViewRect, Color.White);
State.SharedSpriteBatch.End();
}
public void Draw(TimeSpan elapsedTime)
{
// Reset the XNA viewport to our centered and resized viewport
State.Device.Viewport = viewport;
// Set the render target for rendering the AR scene
scene.SceneRenderTarget = arViewRenderTarget;
scene.BackgroundColor = Color.Black;
// Set the scene background size to be the size of the AR scene viewport
scene.BackgroundBound = arViewRect;
// Set the camera to be the AR camera
scene.CameraNode = arCameraNode;
// Associate the overlaid model with the ground marker for rendering it in AR scene
scene.RootNode.RemoveChild(overlayRoot);
groundMarkerNode.AddChild(overlayRoot);
// Don't render the marker board and camera representation
markerBoardGeom.Enabled = false;
vrCameraRepNode.Enabled = false;
// Show the video background
scene.BackgroundTexture = videoTexture;
// Render the AR scene
scene.Draw(elapsedTime, false);
// Set the render target for rendering the VR scene
scene.SceneRenderTarget = vrViewRenderTarget;
scene.BackgroundColor = Color.CornflowerBlue;
// Set the scene background size to be the size of the VR scene viewport
scene.BackgroundBound = vrViewRect;
// Set the camera to be the VR camera
scene.CameraNode = vrCameraNode;
// Remove the overlaid model from the ground marker for rendering it in VR scene
groundMarkerNode.RemoveChild(overlayRoot);
scene.RootNode.AddChild(overlayRoot);
// Render the marker board and camera representation in VR scene
markerBoardGeom.Enabled = true;
vrCameraRepNode.Enabled = true;
// Update the transformation of the camera representation in VR scene based on the
// marker array transformation
if (groundMarkerNode.MarkerFound)
{
vrCameraRepTransNode.WorldTransformation = Matrix.Invert(groundMarkerNode.WorldTransformation);
}
// Do not show the video background
scene.BackgroundTexture = null;
// Re-traverse the scene graph since we have modified it, and render the VR scene
scene.RenderScene(false, true);
// Adjust the viewport to be centered
arViewRect.X += viewport.X;
vrViewRect.X += viewport.X;
// Set the render target back to the frame buffer
State.Device.SetRenderTarget(null);
State.Device.Clear(Color.Black);
// Render the two textures rendered on the render targets
State.SharedSpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.Opaque);
State.SharedSpriteBatch.Draw(arViewRenderTarget, arViewRect, Color.White);
State.SharedSpriteBatch.Draw(vrViewRenderTarget, vrViewRect, Color.White);
State.SharedSpriteBatch.End();
// Reset the adjustments
arViewRect.X -= viewport.X;
vrViewRect.X -= viewport.X;
}