Brighter3D allows you to create photorealistic renders from your SketchUp scenes. It provides over 100 different real life measured materials, and allow you to create millions of them, combining reflectance/refractance/index of refraction Fresnel term. Brighter3D works on SketchUp versions 8 M1 , 2013, 2014, 2015, and 2016.
It is a mini cad system and with it you can make working drawings, designs etc.
