Three-dimensional animation scene construction method based on real-time rendering engine

By voxelizing the 3D scene and deploying a simplified fluid dynamics algorithm in the GPU computing shader, the problem of physical interaction between the fluid medium and the geometry of the 3D scene in real-time rendering was solved, achieving high-fidelity fluid visual effects and realistic interaction at high frame rates, breaking through the technical bottlenecks of real-time performance and physical accuracy.

CN122134895APending Publication Date: 2026-06-02HANGZHOU SIYI ANIMATION DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU SIYI ANIMATION DESIGN CO LTD
Filing Date
2026-03-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, environmental dynamic effects lack real-time physical interaction with the geometry of the 3D scene during real-time rendering, which often leads to visual errors that violate physical common sense, such as fluid media passing through physical obstacles. In addition, traditional computational fluid dynamics algorithms have high computational overhead and are difficult to achieve high-fidelity physical simulation while ensuring real-time rendering frame rate.

Method used

A 3D animation scene construction method based on a real-time rendering engine is adopted. By voxelizing the input 3D scene geometry data, a simplified computational fluid dynamics algorithm is deployed in the GPU computing shader to initialize and iteratively solve the fluid state field. The solution results are then mapped to the volume rendering pipeline to drive the visual performance of environmental effects. At the same time, the time step and resolution are optimized to control the consumption of computing resources.

Benefits of technology

It achieves physical-level real-time interaction between fluid environment effects and 3D scene geometry, avoiding clipping issues in traditional effects, maintaining high frame rate rendering and achieving cinematic fluid visual fidelity, thus enhancing the realism and interactive immersion of 3D animation scenes.

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Abstract

The application relates to the field of computer graphics and real-time rendering technology, and particularly discloses a three-dimensional animation scene construction method based on a real-time rendering engine. The method comprises the following steps: voxelizing three-dimensional scene geometry data; deploying a simplified computational fluid dynamics algorithm in a GPU computing shader to construct and initialize a fluid state field; iteratively solving a fluid dynamics equation every frame to update velocity, pressure and density fields; mapping the fluid state field to a volume rendering pipeline to drive the dynamic visual performance of environmental effects such as smoke and airflow; and synchronously detecting the interaction area of the fluid and flexible body or vegetation, and applying force feedback in line with the laws of fluid mechanics to drive deformation response. The application realizes movie-level fluid realism and physical accuracy while ensuring a high frame rate, and improves the immersion and interactivity of a three-dimensional animation scene.
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