Custom Wheel

Matching Vehicle Projects with Real-World Wheel and Tire Data

Vehicle projects frequently run into visual discrepancies when wheel assemblies rely on arbitrary mesh scaling rather than verified mechanical standards. Adjusting an automotive model to fit a chassis often breaks the physical proportions between the rim, sidewall, and braking elements.

Custom Wheel resolves this setup challenge by directly incorporating real-world tire information into a customizable assembly. Automotive systems demand accurate geometry relationships so that tread widths, rim lips, and hubs sit naturally inside the fenders. By using standardized automotive measurement logic, the asset allows vehicle creators to establish consistent proportions across interactive models without manually remodeling the geometry for each vehicle configuration.

Wheel Width, Offset, and Inches Calibration

Adjusting the rim requires specific calibration metrics that match actual automotive fabrication standards.

The underlying Blueprint and script structure exposes primary wheel parameters directly within the editor. Wheel Width is measured in standard J notation, giving artists control over the bead profile and rim spread. Wheel Offset is calibrated strictly in millimeters, ensuring accurate lateral displacement relative to the hub mounting surface so users can fix fender poke or tuck without disturbing the suspension geometry. Wheel Inches dictates the total rim diameter, allowing quick transitions between smaller utility rims and larger performance wheels while keeping the center bore aligned.

Tire Width, Diameter, and Aspect Ratio Adjustments

Tire geometry is controlled through the exact formulaic properties seen on actual tire sidewalls.

Rather than stretching a uniform cylinder, the asset utilizes Tire Width in millimeters, Tire Diameter in millimeters, and Tire Aspect Ratio expressed as a percentage. This structure enables developers to simulate realistic low-profile performance setups or tall, rugged sidewalls for industrial rigs. The Blueprint logic ensures that changing the aspect ratio recalibrates the sidewall height relative to the tread width, maintaining authentic profile curvature across all adjustments.

Substance Source Alignment for Wheel, Tire, and BrakeRotors

Visual fidelity depends on consistent surfacing across every mechanical part of the corner assembly.

Custom Wheel is designed according to the Substance Source Automotive Wheel and Tire and BrakeRotors specifications. This design alignment ensures that the distinct material requirements of cast or forged metals, vulcanized rubber compounds, and friction-worn brake surfaces interface cleanly. The presence of matching BrakeRotors within the system ensures that the interior depth of the wheel accommodates mechanical stopping components accurately, preventing the hollow look common in simplified vehicle rigs.

Bone-Driven Animation Rigging Without Morph Targets

Deformation and interactive movement often introduce performance trade-offs in real-time vehicle development.

A critical technical distinction in this assembly is that all bone's animation is utilized, and morph target deformation is not used. Morph targets can inflate memory overhead and cause vertex calculation bottlenecks in high-density interactive vehicle scenes. Relying exclusively on a bone hierarchy for setup changes and motion simplifies integration with physics engines, skeletal mesh components, and runtime vehicle animation graphs.

Implementation guidance is supported through a dedicated documentation PDF alongside a YouTube demo video that steps through configuration procedures. Because the system operates via Blueprint scripting tailored for vehicle and industrial workflows, developers can hook the interactive wheel parameters into custom garage customization screens, maintenance sequences, or dynamic handling components across any interactive automotive project.

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