Blender Hard-Surface Modeling Techniques | The Gnomon Workshop

For artists working in the entertainment industry, elevating hard-surface designs from acceptable to a professional level depends heavily on the final detailing stage. In this highly focused, 30-minute technique spotlight, professional concept artist Bryant Momo Koshu shares the powerful tricks he uses to rapidly enhance hard-surface models using Blender. This workshop is ideal for intermediate-level artists looking to advance their Blender skills.

This concise workshop has been designed to give artists immediate, actionable workflows for adding intricate layers of detail — specifically, nuts, bolts, panel lines, and cables — to 3D assets, and to teach how to avoid being held back by tedious modeling pipelines.

This workshop uses Blender as the core software. Bryant uses two recommended Blender add-ons in his demonstrated workflow: Decal Machine and Cablerator.

3 Lessons

01Fast-Track Nuts & BoltsFree

Bryant Momo Koshu shares two distinct methods to quickly add micro-details to mechanical surfaces. Firstly, he shows how to master the basics of the Decal Machine Blender add-on to rapidly snap, scale, and wrap 2D details onto flat or rounded surfaces. Second, he demonstrates a clever, three-dimensional alternative using vertex groups, weighted influences, and the Shrink Wrap modifier. To finish this first lesson, he shows how to use the Data Transfer modifier to seamlessly blend distinct kitbash geometry onto your base mesh for flawless normals.

Duration: 11m 2s

Fast-Track Nuts & Bolts

02Non-Destructive Panel LinesFree

In this second lesson, Bryant discusses how Panel lines give 3D models a complex, "techie" appearance. This lesson covers two efficient ways to slice details into a mesh. First, he demonstrates how to use the Decal Machine to instantly generate panel decals from an edge selection, adjusting width and styles on the fly. He then shows how to use Boolean Vertex Cutters to build a completely non-destructive panel system using basic vertices, a Screw modifier, a Solidify modifier, and Boolean operations — allowing artists to freely change cut directions at any time.

Duration: 10m

Non-Destructive Panel Lines

03Efficient Cable & Segment Routing

Bryant reveals how to bring machinery models to life by routing complex wires and cables through them. In this lesson, he demonstrates how to use the Cablerator Blender add-on to instantly draw and adjust the tension and droopiness of cables. To complete the demonstration, he goes over Custom Overlays. He shows how to create a custom wireframe mesh segment and automatically duplicate it along cable paths for an advanced sci-fi finish.

Duration: 7m 51s

Efficient Cable & Segment Routing

Primary tools

For this workshop you’ll need:

* Note that these programs and materials will not be supplied with the course.

Skills Covered

hard surface texturing look development texturing & shading

Who’s this Workshop for?

This workshop is designed for intermediate-level concept artists and 3D modelers working in the entertainment industry who want to elevate their hard-surface modeling skills in Blender to a professional standard.

Artists working in film, games, and animation who are looking to streamline their modeling workflows will find value in Bryant's rapid detailing techniques and learn actionable methods to efficiently transform acceptable models into industry-ready assets.

Learning Outcomes

By completing this workshop, artists will have mastered professional-grade detailing techniques for rapidly transforming basic hard-surface models into polished, industry-standard assets.

Key skills include:

How to efficiently add nuts, bolts, and mechanical details using optimized Blender workflows.
How to create clean panel lines and surface divisions without tedious manual modeling.
How to implement realistic cable systems using the Cablerator add-on for enhanced detail in Blender.
How to utilize the Decal Machine add-on for Blender to effectively add intricate surface details and weathering.
How to avoid common time-consuming modeling pitfalls that slow down production pipelines.
How to layer multiple detail elements cohesively for professional-quality hard-surface assets.

Instructor Bryant Momo KoshuSenior Concept Artist

Bryant Momo Koshu is a concept artist with over a decade of experience in video games, film, and virtual reality, known for his adaptability and creative versatility. He specializes in hard-surface modeling, environment design, and character concept art, blending traditional techniques with modern 2D and 3D digital tools.

Bryant has collaborated with leading studios, including Konami, Skydance Interactive, Deviation Games, and Survios, on a variety of projects, helping bring immersive worlds and intricate designs to life. Committed to education and mentorship, he creates tutorials and workshops focused on workflows in Blender, Substance 3D Modeler, and photobashing techniques, and participates in mentorship programs to guide and support emerging artists in developing their skills and professional careers.

Bryant is the best hard-surface designer I have ever seen; his work is nothing short of spectacular, his sensitivity to detail and function is something to highlight, and I hope to work with him again because his work inspires me to improve.
- Julian Calle
Visual Development Artist at Framestore
Bryant is a fantastic Concept Artist; not just a great illustrator, but someone who embodies everything you want in the role. He’s collaborative, ego-free, and full of ideas, turning brainstorming and whiteboard notes into compelling, well-communicated visuals. Flexible with deadlines, quick to innovate in new technology like VR, and always elevating team workflow and culture, Bryant proves that great concept art is as much about mindset and collaboration as it is about draftsmanship.
- Mark Domowicz
Lead Designer at Absurd Ventures
Bryant was a pivotal member of Yellow Tracksuit Entertainment and a key part of the company’s success. His hard work and willingness to do whatever it took for the team to succeed were invaluable. Beyond his fantastic personality, his craftsmanship was remarkable. Bryant was able to adapt his style to suit the needs of any project, and soaked up new information like a sponge! Whether it was realistic concept art, or stylized forms in animation, Bryant was a design chameleon!
- Jin Han
CEO / President at Yellow Tracksuit Entertainment
Bryant’s skill and creativity are exceptional, and he is an outstanding collaborator and teammate. He executes ideas quickly and thoroughly, often exceeding expectations with the quality of his work. Bryant is also a fantastic team player; always encouraging, giving and receiving feedback clearly, and bringing joy and passion to everything he does. He adapts effortlessly, and his genuine positivity brightens every meeting. I can’t recommend Bryant enough — if you want top-tier artistry in an amazing person, he’s your guy.
- Miki Gao
Associate Producer, Vehicle Cosmetics - Rocket League & Fortnite Battle Royale at Epic Games

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