6 modules - PI-VR GmbH

6 MODULES200occlusion and indirect illumination for rendering and calculates specularreflections and refractions and correct shadows from lightsources.• Precomputed + Shadows: The Precomputed + Shadows Mode uses precomputedimage based lighting and indirect illumination but doesn’t useprecomputed Ambient Occlusion values. Instead it calculates shadowsbased on the active environment.• Precomputed + IBL: The new Precomputed + IBL Mode uses precomputedindirect illumination and samples the environment. It replaces the old FastGlobal Illumination mode.• Full Global Illumination: The Full Global Illumination Mode doesn’t useany precomputed values but accurately samples everything in a physicallybased approach. Note that other features like Photon Mapping requirethe rendermode to be set to Full Global Illumination.» Photon Tracing: Photon Tracing provides an approach to calculate the globalillumination in a scene. The default full global illumination mode in VRED provideshigh quality results but may require longer calculation times. Photon Tracingcan reduce the time required to render a clean image by a larger margin,especially in indoor scenarios like car interieurs or architectural indoor scenes.• Mode: VRED provides different Photon mapping modes.· Off: Disables Photon Tracing and uses the default full global illuminationalgorithm in VRED.· Indirect Only: Uses photon tracing to calculate the indirect illuminationin a scene. This is the most common mode.· Caustics + Indirect: Uses Photon Tracing to calculate indirect illuminationand caustics due to specular materials in a scene.• Trace Depth: Sets the trace depth of the photon tracer.• Interactive and still frame count: The two photon count values specifythe number of photons being sent into the scene for each image sample.Specifying a photon count of 100000 photons while having set the image