===== Create a Simulation ===== ==== Create your own Scene ==== In order to start a new Scene simulation access File->New. This will create the barebone needed to run the Editor: * **World** — global system parameters, mostly Ogre related. Right-Clicking on World allows adding a Body (Ogre Mesh file) or a Scene. * **Graphics** — The graphics node is a container of a set of meshes with known names. These are the base meshes used to display proxies, joints bounding box etc. //In general, most tree actions are done via mouse right-click.// By right-clicking the World node it is possible to add a Scene and the Bodies necessary for the scene. Once the Bodies are in the Scene they will need a Dynamic and Geometrical representation apart from the already visible Visual representation. * The Dynamic representation of a Body can be calculated based in the sum of the proxy's mass and inertia. The Proxy mass parameters is calculated based on the it's density and volume.(Dynamics can also be [[Custom Body Dynamics|set manually]]) * The Geometrical data can also be defined by the set of Proxy's belonging to a body.(Geometric data can also [[Mesh Collision|be defined by the Visual data]]) {{ youtube>large:czaK1S_QPWs }} ==== Connecting Bodies ==== Restrictions to a Bodies movement can be applied through Joints. A Joint makes the movement of a Body depend on another in [[http://opende.sourceforge.net/wiki/index.php/Manual_(Joint_Types_and_Functions)#Joint_parameter_setting_functions|several ways]], it may also behave like a servo in the case of a Hinge Joint with a [[Interact with the Simulation|controller]]. To create a Joint right-click a body and select form the list available. Once it is created select it in order to edit it's settings. Bare in mind that default freedom of the axis is only __0.01º degrees__ hence making it a rigid conection. {{ youtube>large:pnm-EwelF7Q }}