There is a simple scene - model (2,820,810 primitives),background (1,296 primitives), environment light.
Render time on default settings in Mantra - 2 minutes 38 seconds
After applying polyreduce node for the main model, I have the following indicators:
model (11,282 primitives), background (1,296 primitives).
Render time on default settings in Mantra - 2 minutes 25 seconds
Could you tell me why such a significant decrease in the number of polygons from 100% to 0.5% did not change the render time so much?
My system:
Windows 11 Pro
Intel(R) Core(TM) i5-10300H CPU @ 2.50GHz
16Gb RAM
NVIDIA GeForce GTX 1660 Ti with Max-Q Design 6Gb
Project file is here https://drive.google.com/file/d/1QEVSKyYEUF53_KQjY0QxLAOSZZTDwyDH [drive.google.com]

