You want to add zoom in and zoom out capabilities to the camera rotating around the model. However, there is no zoom property.
Using a perspective camera, we can change the values for many parameters to control it like a telephoto lens, as explained next:
1. Stay in the
3DInvadersXBAP
project.2. Go to the perspective camera's properties. Check the value for Perspective Field of View (usually 45 degrees by default).
3. Change it to 150 degrees. You will see more models in the scene, but the spaceship will be shown smaller (further away from the camera), as in the following screenshot:
4. Now, change it to 75 degrees. You will see fewer models in the scene, but they will be larger (closer to the camera), as shown in the following screenshot:
5. The Far Clipping Plane value shows the default value of 100. Reduce it slowly, dragging the mouse over the textbox to the left. As you reduce its value, you will see that many pieces of the 3D models in the rendered...