The default render settings of Corona are generally the best choice in most situations, so there is usually no need to change them. However, some special cases may require additional tweaking of the render settings. There are no "universal" settings that will always provide the best results.
You can follow these simple guidelines which should help in most common cases:
- Use the UHD Cache ( Max | C4D ) as the secondary GI solver for interiors and scenes where global illumination is dominant.
- If you are dealing with strong noise caused by direct light, increase the Light samples multiplier
See: How can I tell whether noise comes from direct or indirect light?
- If you are dealing with strong noise caused by indirect light (GI), increase GI vs. AA balance
See: How can I tell whether noise comes from direct or indirect light?
- If you are dealing with noise visible on glossy reflective surfaces, increase GI vs. AA balance
- If you are dealing with bright spots visible in refractive objects, decrease GI vs. AA balance
- If you are rendering a scene with a strong depth of field (3ds Max | C4D) or motion blur (3ds Max | C4D) decrease GI vs. AA balance to about 4-8
See also:
- How to get rid of excessive noise?
- How to report issues? (3ds Max | C4D)