thx for the help :P
i kinda managed it to create a thread that should render the 3D scene but i get no results from the thread
that's my code i used:
if i write a simple while-loop and call there the canvas.drawNow() function it works perfectly.
fps = 30
running = 0
render_thread = renderer()
but i need it in a thread because the main skript gets slow with more objects to render.
this code runs without any errors but it do not render to the screen ...
screen just freezes and i can not press exit if the thread is started.
i realy hope somebody can explain me how to start a thread xD