This image is taken off a random search result on Google. I am making a weapon that needs a custom model and texture. However, the VTF is made with a playermodel, meaning that the VTF of my weapon has the torso of a playermodel connected to it. Now I thought I could just crop out the torso parts and use the remaining parts for my VTF, BUTT, after digging around a bit I saw that the VTFs of other weapons are positioned in a very specific way, such as the pic I have posted.
My question is, how do I know how to position my textures in the VTF? Or am I wrong and I could actually just cram them into one VTF in a random order?