In this follow-up video tutorial, we use InstaMAT’s nPass graph to take mesh UDIM unwrapping to the next level. Each npass iteration targets a different material section, unwraps UVs, and places shells into UDIM tiles automatically.
In this video, we cover how to turn the manual “unwrap one section, then repeat” process into a reusable nPass-driven workflow. You’ll see how to iterate through a mesh’s material sections, accumulate results into a single combined output, and translate UVs per pass so each section lands in its own UDIM tile (instead of stacking shells in 0–1 space).
We also cover how to make the graph self-terminating so it stops automatically once it has processed every material section and how to organize the UDIM layout into a practical grid by exposing a simple control for the maximum amount of tiles per row.
By the end of the tutorial, you’ll have a self-contained, drop-in node: plug in any mesh, set your layout controls, and get back a single merged mesh with clean, non-overlapping UDIMs—ready to reuse in future projects without rebuilding the graph each time.
About Abstract
Abstract is a deep-tech company pioneering 3D and AI technology. Its products empower game developers, VFX and film, enterprise, XR, and metaverse industries to deliver efficiently with massive cost savings. InstaLOD converts CAD to 3D, optimizes geometry and automates 3D pipelines, InstaMAT introduces generative materials and scalable texturing, Polyverse enhances cloud-based asset management and 3D data processing as a service, while RSX Engine enables real-time collaboration and cloud synchronization when building 3D applications and games. Abstract is driving breakthrough innovation in 3D and AI across industries.