Looking for a method of sorts to visualize correct refractions and reflections of translcuent objects IN ACTUAL 3d environments... so not just diagrams of sorts but kind of like industrial sketching planning out shadows so this one is for refractive objects, translucent things

I havent been able to find them but it seems scientific at least

So i guess maybe i missed a thing somewhere, that is usually taught so artist can render this realistically.