I have written a 3D Vision Patch for Divinity 2 (Dragon Knight Saga and Developers Cut), which can be found here
D2 3D Vision Patch. Instructions for using are provided there.
Divinity 2 is a great game that does not look too bad in 3D out the box as long as shadows are disabled (they render at screen depth otherwise). The main issues are then a wierd haloing effect with some of the trees, sky canopy depth, water reflections, fire/heat haze, some magic spell effects, and the dome shaped 'barriers'. My patch fixes all of that including shadows and makes the game look fantastic. I play on a 100" projector screen and the immersion is great. The levels with trees and all the shadows from moving leaves are special. Flying round as a dragon is great fun.
I made very few compromises in this fix, the main one being that the water splashes had to be removed (the 'wake' when you move through water). The main outstanding issue is that sun rays from the sky are in 2D (e.g. shining through trees), but this is not very noticable.
If anyone tries it out, leave comments or report issues over at the above site or here, I'll actively look to improve the fix over time as I a sure there is stuff I will have missed.