It is a fact that in the interior design field artificial lighting is vital and in Sketchup sun is the only source of illumination. Recreate therefore shining light sources is impossible when using only Sketchup. However, lately I've resorted to these tricks to achieve it.
- Once shaped my project which I always group it I select the ceiling and I check off “Cast Shadows” Entity Information dialogue box. Doing this allows the sunlight to come inside my room.
To recreate the artificial lighting I do the following:
1. I create a cone and apply a white, blue or yellow material with translucent properties below 50% in each of the faces. This percentage is very important because higher values cast shadows. I usually set the opacity around 20. I create a component.
2. I create a second component which is usually an arc. I apply another less translucent material with more intense color properties to simulate the light bulb. I place a vertical line to have an endpoint to grip the component into position when inserted. I place the bulb over the cone.
3. I make a new component grouping the previous two.
4. I double-click to enter to the edit mode and select the cone. Using Window> Soften Edges I expose only the faces. I enter to the bulb edit mode but this time I use the Erase + Shift function to hide the arc and lines.
5. I save my component for further use in my library.
6. I insert the cone of light in the light fixtures and uncheck the Profiles option from View> Edge Style. If I want to change the tone of the light simply I edit the material and change the base color.
7. I create my scenes.
Note: The shapes of the light cones are governed by the type of lamps and shades I am using; this is why I keep in my library options for each case.