Thanks! Yes, it is noisy, but this was my first attempt to play with godrays effect and I still did not found solution to noise, that is the usual denoising did not work on the rays. I also did not get more in depth with the volume light effect and volume material in general to be able to control the noise. In this round I focused more to get more or less strong effect.
Corona version for this one was 3... I did this prior to update to 4 and I hope this new one will enable better results, but also I need to read a bit more about volume material features and how to reduce noise... Idealy this effect would be possible to render out on separate layer and denoise, make postwork to this separately, also control the amount...