This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 This is my 2nd design, which is derived from the cube. This is one part of the whole project called the Cubic Step Pyramid. You can find more details on my website............ Theo's Hobby Corner.