March 15, 2012, 02:02:21 pm
Is there a way to load custom reflections on the glass?
Not at the moment.
The possibility to reflect an interior environment on interior glass and exterior environment in extrior glass would be greatly appreciated.
This is already possible. But first I need to explain how reflections work in Lumion, as that's one of the hardest concepts to come to terms with.
Since the hardware is not fast enough to calculate raytraced reflections in real-time, there are just 2 options:1) Planar reflections:
This is perfect for mirrors. The downside is that the render engine basically has to render everything that is reflected a second time (mirrored), and depending on the scene complexity this can drastically reduce performance. This is the reason you typically only see planar reflections in small scenes in real-time 3D graphics. This feature is not (yet) available in Lumion.2) Cubemap reflections:
Also known as "faking it"
What you are seeing on the glass in your scene is a 360 degree panoramic reflection texture which is rendered from a single point in the scene (this point is set by adding the Lights/Utilities/Reflection Control
object to your scene).
If you haven't added the Lights -> Utilities -> Reflection Control
object to your scene, it will be placed high above the terrain in a default position.
This 360 degree panoramic reflection texture is then projected onto all reflective materials in your scene, including the glass in your video.
The downside is that it is a rough approximation, and you will never be able to achieve perfect reflections with this method, but it's all we've got in Lumion for the time being.Advice:
My advice is to place the Lights/Utilities/Reflection Control
object inside the building, and try rendering it again. I also tend to reduce the reflectivity amount of reflective materials in my scenes, to try to hide the fact that the reflections are "fake".