Precomputed + IBL

Learn about the Precomputed + IBL setting to compute and display real shadows, reflections, refractions, and glossy reflections when raytracing in VRED.

For additional information on Precomputed + IBL, see the following:

Precomputed Illumination (Video)

Precomputed + IBL (Reference)

Precomputed Illumination Rendering for Light and Shadows & Direct and Indirect Illumination from the Environment (Reference)

vrdEnvironmentRaytracingSettings (Python)

Video captions: Open the Render Settings, via the Quick Access Bar. Choose as render mode, Precomputed + IBL. Activate Raytracing. HDR is not the lighting default. When hiding environments, the render view appears turns black. Real shadows of the scene are calculated. Furthermore, reflections and refractions are continued being calculated. Precomputed + IBL offers, in addition, the possibility to determine glossy reflections and respectively display them. Open the Material Editor, via the Quick Access Bar, and create a new plastic material. Change the color to black and set the Roughness to a value of 0.01. Apply the material to a geometry. Create any geometry and place it above your geometry. You can see the glossy reflections are being calculated. Switch the render mode to Precomputed + Shadows. As you can see, in the Precomputed + Shadow mode, no glossy reflections are generated.