Hazy and grainy can be avoided. Just possible to remove any fog and haze, and render to the best quality (user setting at minimum since Vue3). Light setting is also important...See for instance the september challenge pic above, does is look dull to you ? The colors are bright, seems to have not ambient, all the objects are very clear and net (seems no fog and haze). There are some other examples of that in the gallery (why not surfing through it?) ;=)