(listNodes_VRAY)
Find and return Vray vopsurface node from list of VRay nodes in each material
    :param listNodes_VRAY - List of nodes in each material container
    :return: node_VRAY - Vray vopsurface node with VRAY material parameters
Find and return Vray vopsurface node from list of VRay nodes in each material
    :param listNodes_VRAY - List of nodes in each material container
    :return: node_VRAY - Vray vopsurface node with VRAY material parameters
Find and return Vray vopsurface node from list of VRay nodes in each material : param listNodes_VRAY - List of nodes in each material container : return : node_VRAY - Vray vopsurface node with VRAY material parameters
def extractVrayVopsurfaceNode(listNodes_VRAY):
    '''
    Find and return Vray vopsurface node from list of VRay nodes in each material
    :param listNodes_VRAY - List of nodes in each material container
    :return: node_VRAY - Vray vopsurface node with VRAY material parameters
    '''
    for node_VRAY in listNodes_VRAY:
        if node_VRAY.type().name() == 'vopsurface':
            return node_VRAY
def extractVrayVopsurfaceNode ( listNodes_VRAY ) : for node_VRAY in listNodes_VRAY : if node_VRAY . type ( ) . name ( ) == 'vopsurface' : return node_VRAY