(self, code)
Add code in the header of the vertex shader. Generally used to
        define custom functions, to be used in the main shader code.
Add code in the header of the vertex shader. Generally used to
        define custom functions, to be used in the main shader code.
Add code in the header of the vertex shader . Generally used to define custom functions to be used in the main shader code .
def add_vertex_header(self, code):
        """Add code in the header of the vertex shader. Generally used to
        define custom functions, to be used in the main shader code."""
        self.add_header(code, 'vertex')
def add_vertex_header ( self , code ) : self . add_header ( code , 'vertex' )