Godot Engine – Free and open-source 2D and 3D game engine
I recently got into Panda3d[1]. The Blender3D[2] (an excellent general purpose computer graphics tool) exporter is amazing. I don't even have to change the materials really. The "autoshader" uses blenders normal, emit, spec, and diffuse maps, along with the alpha from PNG's right out of the box.<p>Amazingly easy to use if you like python as well. If you're tired of GUI based game engines, I highly recomend taking a look.<p>EDIT: There is also a physically based shading set-up. But my laptop isn't good enough to play around with it.<p>[1]: <a href="http://www.panda3d.org/" rel="nofollow">http://www.panda3d.org/</a>
[2]: <a href="https://store.blender.org/" rel="nofollow">https://store.blender.org/</a>