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UV Unwrap Update #6

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reviously, in the blog post before last, I showcased a selection of equipment and items I modelled for the Wheelhouse interior.

Now that most of these assets are completely modelled, the next step is optimization and UV unwrapping!

"Ugh, UVs?" I hear you groan. "That sounds tedious!" you might be thinking.

And you wouldn't be wrong!

However, UV unwrapping is a necessary evil. One I've come to appreciate, and even enjoy from time to time.

I like to think I've improved in speed and efficiency when assigning UV coordinates to vertices. In fact, I can proudly say I've been UV unwrapping for over ten years (check out this post here from my first weeks of Uni; featuring not-so-optimized UVs of tools…of all things)!!

Over the years, I've developed a mental workflow that helps me tackle UV unwrapping. Here are five tips I've found particularly helpful:

  • Pre-visualization: Before you even start unwrapping, think about how your asset will be textured. Visualize the areas of focus as you're modelling. Are there specific areas that need more detail? Can seams be hidden in less visible areas?
  • Utilize Seams Strategically: Seams are the cuts you make to flatten a 3D surface into a 2D one. Think carefully about where these cuts will be least noticeable. Alternatively, consider where seams already exist on real-world objects. For soft body objects, like clothing and fabrics, examine the joins. For hard surfaces, like tools and equipment, study the different materials and where they meet. The backs and undersides of objects, as well as bold corners, are often a good starting point for seams!
  • Explore your UV Tools: Experiment with the different unwrapping tools available in your 3D software. In Maya, try features like 'Automatic UVs', 'Unfold', 'Optimize' or 'Straighten UVs (where appropriate). Then, tighten up the UV grid layout a few times to refine the final 2D package. There's no single right way to do it; find the approach that works best for you.
  • Check for Stretching: Most 3D software includes tools to visualize surface distortion, such as the holy Checker texture grid. Keep a close eye out for stretched or compressed UVs. Aim for uniform texture density across your model. When in doubt, meticulously study those squares on the Checker texture.
  • Pack and Layout UVs Efficiently: After unwrapping, try to pack all your UV islands into a single UV map (unless you have a large, multi-object model such as a vehicle). While there are automated packing tools, hand-packing and scaling the most important or visible areas often achieves the best results. Remember, it is an iterative process.

    So, UVs are a necessary evil. As Eddie Murphy wisely said, "Without bad, there is no good. Without light, there is no dark, you need both these things." Learn to value the importance and significance of UVs, dear reader!

     


    Jason Bartlett ©

    Jason Bartlett ©

    Jason Bartlett ©

    Jason Bartlett ©

    Jason Bartlett ©

    Jason Bartlett ©


    In the next post, I'll show progress modelling more of the F/V Scully's interior!


    Thanks for reading :)

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