Rendering Performance and Quality

A render is not finished when the “kernel”->”maxsamples” are reached. It is finished when the Viewport image quality is free of noise and all details have been rendered to a fine level. For some simple scenes, this will be after 500 samples. For some complex scenes it may take 10,000 samples.

Tips to increase render speed (by increasing sample/sec or reducing the samples required to finish the render):


Rendering Artifacts

“rayepsilon” – The “rayepsilon” pin of the kernel node is used to fine tune the shadow bias from geometry where vertices are close together. You should check the “rayepsilon” for each scene. The “rayepsilon” will be smallest for close-up renders, and increase as the camera moves further away from the subject. For example, eyewhites from human figures may render with dark shadows if the “rayepsilon” is too high. Or large, low-polygon walls may render with shadow artifacts if the “rayepsilon” is too low.

Flat Surfaces and “smooth” – By default, the plugin material conversion process turns “smooth” ON for all Octane materials converted from Poser materials. You should turn “smooth” OFF on the Octane materials for any flat surfaces (such as walls).