I would like to know why my RAM is not fully used (or at least low used) when rendering in Render Movie Queue. I tried to render with Lumen, with high anti-aliasing and also with PathTracing with high anti-aliasing for a test but my ram is still limited at about 17gb. I know it depends on the scene but I thought that UE would scale the usage depending on what you have.
I have 128gb of RAM.
Up. Anyone knows why?
MRQ will utilize your VRAM more than CPU ram.
Not sure if this helps but here are a few steps on manually adjusting your VRAM (on Windows): 1. Access the System Properties settings. Go to Start > Run. Type sysdm.cpl and click OK. In the System Properties dialog box, click the Advanced tab. Under Performance, click Settings. In the Performance Options dialog box, click the Advanced tab. 2. Adjust the virtual memory setting.
Thanks, now I know what to expect when rendering. Have a great day 
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