September 25, 2011, 09:59:55 pm
One thing at a time, you're talking about two different things here 1) The problem with reflections that you and Severino reported:
As Severino mentioned, the problem was actually caused by the fact that his original model did not have any smoothing groups.
I've had a look at the .3ds files you uploaded earlier today and the same thing applies to your models: The models do not include smoothing groups in any of the 3D applications I've loaded your .3ds files in.
In other words, the problem is actually in Cool3D, so you'll have to explore the export options in that application to find out if a) you can turn on "Smoothing groups" in the .3ds export file dialogue window or b) export to another format, preferably FBX or DAE (Collada) files.2) The shadows on the sink:
What you're seeing is normal behaviour in Lumion when shadows are almost parallel to a large surface. It doesn't matter which application the model was exported from, but what does matter is:1)
How detailed the model is, ie, how many polygons the curved surface consists of and...2)
How big the polygons are.
The sink in your example uses very few polygons (and is presumably big?) and as you can see on the rendering below, all you need to do to fix this is to add more detail to the curved segments (and/or scale it down if it's larger than usual?).