Now that we have a baseline look for the lighting, turn off the Material Override, and watch the Interactive render to see the lighting with the proper materials in the scene.Page Contents Introduction This tutorial covers the basics of lighting an interior scene using V-Ray in SketchUp.It will build off of the previous Exterior Lighting Quickstart and include a variety of V-Ray Lights for both day and night renders.
By the end, you will gain an understanding of the general lighting workflow for interiors in SketchUp. To follow this tutorial, you will need to have the V-Ray for SketchUp plugin installed. This tutorial is a companion to go along with the QuickStart video posted on our YouTube channel and available here: Tutorial Steps Open the Example Scene Begin by launching SketchUp. Open the project file InteriorLightingStart.skp, which can be downloaded from the Tutorial Assets section above. Notice that the scene has a Material Override that affects everything except for the glass to allow light to come in from outside. To see how this has been set up, navigate in the Asset Editor to Materials. In the Options rollout, you can see that the option Can be Overridden is off, so the Glass does not respond to the Material Override set for the rest of the scene in the render settings. Adjust the time of day so that we get light through this back window. ![]() Setting Up Portal Lights with V-Ray Plane Lights Next, we will make some portal lights to help light the room. Copy this light and then and place it outside of this sliding glass door, sizing it roughly to the doors scale. ![]() Set the view to RenderView00 and start an Interactive render. We have a giant square of light in the scene, not quite something you see in real life. To adjust this, open the Asset Editor, and in the Lights section, find the rectangle light. Change the Color, and observe how the interactive render updates and fills the room with color. The render updates to fill the room with a much more natural look of light coming in from the outside. There are two types of Portal lights, regular Portal light that Im using here, and Simple portal light. The Simple type ignores all the objects behind it, effectively cutting a hole to let light in from your environment, while the regular Portal Light samples all the objects behind it including solid objects and those with transparent materials. If you compare the Simple portal light render to the previous regular Portal light, you can easily see how the curtains are affecting the light coming into the room, as well as slightly less illuminated overall. The Simple Portal is faster but the regular Portal look more accurate. Portal light Simple portal Light Well stay with the Simple portal light.
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