Before I started making skins for Unturned and CS:GO, I made 3D models using Sketchup. I've made all sorts of things, from weapons to tanks. Sketchup renders would have black outlines on white untextured models, making the model look like it was cel-shaded. With that as inspiration, I created a Viper skin where major parts of it are outline with thick dark gray lines. I added details found on the real-life MP5 while adding some of my own touches.

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