If you want to contribute to babylon.js (What an excellent idea!), you should attempt to align your code with the following naming conventions:

• Private variables are named starting with _ : _myVariable
• Camel casing is used for non static properties/functions/variables: var myUberUsefulVariable
• Pascal casing must be used for "static" functions: BABYLON.Vector3.Project
• Braces ({}) must be used for every block, even when there is only one line:

  if (condition) {
    this.doSomething();
  }
  

• Braces start on the same line and end on the next one
• Each new file must contain only one class

You have to use TypeScript to submit a pull request.

If you want to add a new file, please do the following as well:

• Update gulp's config.json
• Update documentation