“High Quality” is a hard term to define as it varies from user to user. Here is a quick attempt to answer your question:
- Most of the quality comes from your model. A well built model with high quality assets will produce a decent rendering with default settings.
- Materials make a big difference. Use the default VRAY materials library where you can and supplement that with importing .VISMAT files found online. Note that light, reflections and transparency go a long way to make a render look better but all add time to the process.
- Size matters. I mean pixels. High quality means large render…minimum 2000 pixels wide. 3-5,000 works better but takes longer. How fast are your machines or how patient are you to wait hours for a render?
- There is a simple ‘quality’ slider in settings (asset editor). Render using the ‘Draft’ setting until ready to do final rendering, then bump up. Of course that takes time. Use DeNoiser to reduce noise which doesn’t add time and helps smooth out lower resolution or lower quality settings.
See below for Quality vs Time rendering on very simple model:
"Draft (lowest)" quality setting at 2000 px wide = 9.2 seconds
High (not highest) quality setting at 2000 px wide = 56.9 seconds.
Hope this helps.