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Related Experiment Video

Updated: Jun 25, 2026

Stereoacuity Improvement using Random-Dot Video Games
06:25

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Published on: January 14, 2020

Practical Occluder Generation for Mobile Games.

Hongyi Cao, Zhenghai Chen, Yongxin Wang

    IEEE Transactions on Visualization and Computer Graphics
    |June 23, 2026
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces an automated method for generating efficient 3D game models called occluders. This technique speeds up real-time rendering by reducing polygon count while maintaining accurate visibility testing.

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    Area of Science:

    • Computer Graphics
    • Real-time Rendering
    • Geometric Modeling

    Background:

    • Occlusion culling is vital for real-time rendering performance in games.
    • Simplified proxy geometry (occluders) is used for efficient visibility testing.
    • Manual occluder creation is time-consuming and labor-intensive.

    Purpose of the Study:

    • To present a fast, fully automated method for generating high-quality occluders.
    • To address the challenges of creating low-polygon, conservative, and accurate occluders for game assets.
    • To bridge the gap between academic research and practical game development needs.

    Main Methods:

    • A two-stage approach for robust occluder generation.
    • Novel inward offset mesh computation strategy.
    • Conservative simplification using a new variant of Quadric Error Metrics (QEM).

    Main Results:

    • The method effectively handles noisy and complex geometry.
    • Generates production-ready occluders rapidly (in seconds).
    • Achieves significant triangle reduction while preserving occlusion fidelity.

    Conclusions:

    • The automated approach offers a practical and scalable solution for occluder generation.
    • Improves efficiency in real-time rendering for mobile games.
    • Enables faster development cycles for game assets.