loadCanvases(canvasesArray, texturesOptions = {}, successCallback) {
        for(let i = 0; i < canvasesArray.length; i++) {
            this.loadCanvas(canvasesArray[i], texturesOptions, successCallback);
        }
    }
Loads an array of canvases

     params :
     @canvasesArray (array) : array of html canvas elements
     @texturesOptions (object, optional) : Parameters to apply to those textures (see Texture class). Will be merged with the mesh default textures options
     @successCallback (function): callback to execute on source loading success
     @errorCallback (function): callback to execute on source loading error
*