Portal Lamps

Comments

• Richard Haseltine Posts: 109,012

  September 2017

  Yes, though supposedly Iray is sufficiently effective at optimising its paths that you won't often need them. From http://docs.daz3d.com/doku.php/public/software/dazstudio/4/new_features/start

  To begin using a Light Portal, you must first enable the Caustic Sampler property in the Optimization group found in either the Render Settings or Draw Settings panes. Then add a Spotlight or a Point Light to your scene. A Light Portal property appears under the Light > Area group when the Photometric Mode is enabled and the Light Geometry property is set to Rectangle in the Parameters pane. Enabling this Light Portal property causes the light to be seen by the Iray renderer as a light portal instead of as a light.
• RRed Posts: 18

  September 2017 edited September 2017

  Excllent thanks! I'll have a go with it and see. For any one else interested its under section 4.9.2 - Iray Light Portals in the link Richard provided.

  Post edited by RRed on September 2017