6 modules - PI-VR GmbH

4 PREFERENCESfor each image sample, sending a large number of photons into the scene. Whilethis is necessary if final gather quality is set to 0 it is often sufficient to update thePhoton Map only once per frame and use it for each image sample to reduce therender times.• On Each Sample: This updates the Photon Map for each image sample. Thisis the default setting since it also works for scenes with animated objectsthat may cause flickering otherwise.• On scene change: The Photon Map is updated once per frame only unlessmotion blur is activated. Since caustics require many photons, the CausticMap will still be updated for each sample while the indirect illumination PhotonMap will only be updated once. This setting often results in the bestrendering performance but requires a much higher photon count to receiveartefact-free results, particularly when rendering scenes with animated objects,the result may flicker in regions with a low photon count. This is whythis mode should only be used for scenes with static geometry and materials.» Use Final Gather For Glossy Reflections: If activated, glossy reflections are notevaluated by path tracing but use the final gather map instead. This reduces therendertime but results in less accurate reflections.» IBL Sampling Quality» Interactive: Sets the interactive IBL sampling quality.» Still Frame: Sets the still frame IBL sampling quality.» Reflection/Refraction Sampling Quality» Interactive: Sets the interactive sampling quality of reflections and refractions.» Still Frame: Sets the still frame sampling quality of reflections and refractions.» Trace Depth62» Interactive: Sets the interactive trace depth settings.» Still Frame: Sets the still frame trace depth settings.