AC member TTM (< thank you) found a way to do some decent looking window/glass material, should you need one for your tracks. Here is his method: "Step1: Window texture alpha channel controls window transparency. Texture must be saved 18.104.22.168 argb 32 bpp - unsigned Step2: ksEditor Select window object and apply ksPerPixelAT material and then apply ksPerPixelReflection material. ..Without applying ..PixelAT material first window is not transparent. Step3: Material settings. ksSpecularEXP value controls reflection sharpness. (There is no need 0,5 to KsAlphaRef, i left value accidentally..) isAdditeve needs to be 1. FresnelMaxLevel is window's brightness, maybe not right word describe, but change value and you see. btw, there is also ksPerPixelSimpleRefl material with same values to material window only relfects blue color."