Well I'm quite impressed about Lumion, I must say that the overall quality is pretty damn amazing!
I've played a bit with it and so far I've tested almost everything, so I found pros and cons and I would like to let you know what they are:
Oustanding visual quality
Water shader is perfect
Material easy to setup and very very good looking, with proper physical properties
Ability to choose the visual quality, so no slowdown when you're doing the setup of a scene in low resolution
Sky and clouds are amazing
Very nice and clean GUI, it keeps you focused on the scene
No scale tool
"Only" still images and movies ( but you're working on standalone, so that's good! )
No "free select" on an object, but only if you're in the right menu sub-selection ( which is good for selecting only what you need, not so comfortable when, for example, you need to just move/scale/rotate an object really quick, but that's just my point of view )
No real night time ( but you're working on that too )
Navigation with WASD is ok, but the camera still moves smoothly when the key is not pressed, I would rather prefer that the camera will stop when the key is not pressed anymore
As I said everything works fine, I really like this engine and its perfect for artists.
But I would really like to test a scene to see what results I can get.
I mean I have good FPS on medium resolution ( 35 ) not so good on high ( 12 ) and not good on very high ( 10 or less )....I'm running with ATI HD 4870x2.
Will you guys from Lumion please share a complete scene ( like the one in the demos ) so I can really see what is the average FPS? with only the sky, mountains and water without any good amount of geometry is quite difficult to see the real FPS. Unfortunately I have only small scenes to test.
By the way I'm really curious about the "brother package" that you're developing...I mean the one that allows you to create .exe, navigate, and all that scripted stuff available for us "programming don't-know-at-all-what-that-means", in order to create a complete interactive scene.
Looking forward to see what you guys can do, I think that thin engine can be the final answer basically for everyone who wants to have professional results in short times