FAQ - Performance problems

Slow rendering? Low RAM?

What are the best render settings?
What are the best render settings? Generally, in Corona Renderer the default render settings should perform well in most situations so usually there is ...
Wed, 2 Dec, 2020 at 9:24 AM
How to get rid of excessive noise?
How to get rid of excessive noise? Subtle high-frequency noise is normal for Corona and other path-tracing renderers, especially at the beginning of ...
Fri, 22 Nov, 2019 at 9:36 AM
System is running low on RAM. You may experience excessive parsing times and/or crashes.
"System is running low on RAM. You may experience excessive parsing times and/or crashes. You will probably have to simplify the scene." This ...
Wed, 3 Feb, 2021 at 9:49 PM
Rays per second too low
Rays per second too low There are several measures of rendering performance other than “how long do I need to wait for the noise to go away”, that can b...
Thu, 25 Jun, 2020 at 5:10 AM
Rays per sample too high
Rays per sample too high There are several measures of rendering performance other than “how long do I need to wait for the noise to go away”, that can...
Fri, 10 Mar, 2017 at 10:21 AM
Renderstamp Variables
Renderstamp Variables 3ds Max: These symbols, when put into the render stamp text in Render Setup > System > Frame Buffer > Render stamp, get ...
Wed, 21 Apr, 2021 at 4:38 PM
I am getting BSODs (Blue Screens Of Death)!
I am getting BSODs (Blue Screens Of Death)! User software running on modern operating systems (Windows NT/XP/VIsta/7/8/10...) cannot cause BSODs. BSODs...
Mon, 12 Nov, 2018 at 11:23 AM
My system freezes when I start rendering!
My system freezes when I start rendering! This is probably caused by running out of memory. This could happen because of many reasons, and some of them inc...
Wed, 3 Feb, 2021 at 2:03 PM
This scene uses legacy (pre Version 3) displacement.
This scene uses legacy (pre Version 3) displacement. It generally has lower quality compared to Version 3 displacement and requires fine tessellation of geo...
Wed, 3 Feb, 2021 at 9:27 PM
I am getting a sudden rise in RAM usage!
I am getting a sudden rise in RAM usage! Starting from Corona Renderer 3, the "System is running low on RAM" error message will display a...
Wed, 3 Feb, 2021 at 9:50 PM