[Radiance-general] Noise free rendering of simple sun/sky scene

[Lars O. Grobe]

Hi Claus,

without having seen the results - usually such artefacts result from 
weak ar, ad, as settings. We also do not know the scene. Can you provide 
us both with a sketch (e.g. wireframe screenshot or hand drawing) and an 
image showing the noise, both low res and/or an a website? Usually you 
can improve the visual quality by either setting higher values for the 
ambient parameters or using workarounds as mkillum.

One other hint. Create a rif file and render using rad. That will help a 
lot at the beginning, as rad will set some parameters for your scene 
(and you can display those).


Good luck! CU Lars.