Why does the light from Omni Lights, Fill Lights and Area Lights pass through models?

Article Details



Poster: Morten
Article ID: 1881
Posted: Thu 08 Dec 2016
Approved: Yes

QUESTION
Why does the light from Omni Lights, Fill Lights and Area Lights pass through models?

ANSWER
The light from Omni Lights, Fill Lights and Area Lights passes through models and does not cast shadows.

This is a known technical limitation, and is also due to performance considerations.

Please use Spotlights if you require shadows from artificial light sources (see below).

Here is some general information about the 4 types of artificial lighting in Lumion 7.0 (and newer):



Omni Light: This light type only lights up surfaces that are facing the position of the Omni Light. This light type renders extremely fast, and is ideal for areas that do not require very accurate lighting, e.g. farther away from the camera.



Fill Light: This light type lights up all surfaces, regardless of whether they face the position of the Fill Light or not. This light type renders extremely fast, and is ideal for areas that do not require very accurate lighting, e.g. farther away from the camera.



Area & Line Lights: This light type only lights up surfaces that are facing the position of the Area/Line Light, but renders very fast and is ideal when lighting up large spaces.



Spotlight: The light from a Spotlight does not pass through objects and will cast shadows. However, you need to render an image or a video to see the shadows from Spotlights (or select the Spotlights or press F8 to preview Spotlight shadows in Build/Photo/Movie mode). This is done for performance reasons. This light type is slower to render and requires more memory. There's more information in this Knowledge Base article.



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