6 modules - PI-VR GmbH

4 PREFERENCES» Illumination Mode Sets the default lighting mode for materials for interactiveand still frame antialiasing.» Precomputed Illumination: The Precomputed Illumination mode is comparableto VRED OpenGL rendering mode. It uses precomputed ambient occlusion andindirect illumination for rendering and calculates specular reflections and refractionsand correct shadows from light sources.» Precomputed + Shadows: The Precomputed + Shadows Mode uses precomputedimage based lighting and indirect illumination but doesn’t use precomputedAmbient Occlusion values. Instead it calculates shadows based on the active environment.» Precomputed + IBL: The Precomputed + IBL Mode uses precomputed indirectillumination and samples the environment. It replaces the old Fast Global Illuminationmode.» Full Global Illumination: The Full Global Illumination Mode doesn’t use any precomputedvalues but accurately samples the global lighting distribution in a physicallybasedapproach. Please note that other features like Photon Mapping require therender mode to be set to Full Global Illumination.» Photon Tracing Photon Tracing is an approach to calculate the global illuminationin a scene. The default full global illumination mode in VRED provides high qualityresults but may require longer calculation times. Photon Tracing can reduce thetime required to render a clean image by a larger margin, especially in indoorscenarios like car interieurs or architectural indoor scenes. VRED allows differentPhoton mapping modes.70» Mode:• Off: Disables Photon Tracing and uses the default full global illuminationalgorithm in VRED.• Indirect Only: Uses photon tracing to calculate the indirect illumination in ascene. This is the most common mode.• Caustics + Indirect: Uses Photon Tracing to calculate indirect illuminationand caustics due to specular materials in a scene.