How Vision Powers Kuaishou’s Large‑Scale Animation: Architecture, Challenges, and Solutions

1. Introduction

Vision animation platform is the backbone of Kuaishou’s large‑scale online activities, providing a stable bridge between design and production. This article presents the overall architecture and evolution strategy of the platform.

2. Core Value and Existing Challenges

Animation enhances content attractiveness and user interaction, proven by A/B tests that show higher retention, interaction, and conversion rates. However, production, delivery, and development stages face issues such as inconsistent output from game‑engine tools, high asset management cost, cumbersome delivery processes, lack of standards, and insufficient pre‑admission validation.

Production‑run inconsistency: tools like Unity or Unreal generate assets not directly playable on web.

High asset management cost and poor reuse.

Complex delivery workflow and missing standards.

Missing pre‑admission preview for web playback.

3. Vision Platform Evolution Roadmap

The platform evolves through three phases: (1) industry‑wide solutions analysis, (2) selection of a multi‑type unified production tool, and (3) implementation of a self‑developed solution that matches Kuaishou’s team capabilities, performance requirements, and business scenarios.

4. Core Functions of Vision Platform

Key capabilities include:

Static admission detection of animation assets (file format validation, compatibility checks, performance risk identification).

Performance out‑testing for single animations and integrated testing for multiple animations across high‑end and low‑end devices.

Unified Runtime that abstracts various animation types and provides a consistent API for web, iOS, and Android.

Standardized format conversion tools ensuring compatibility with the Runtime.

5. Asset Admission and Performance Testing

Static detection checks file suffixes, content correctness, and potential bugs (e.g., missing ind attribute in Lottie). Performance testing identifies oversized resources or high CPU usage features such as Matte, and offers automatic fixes like removing empty layers.

6. Unified Runtime and Format Conversion

A single Runtime environment solves selection difficulty, learning cost, and format‑conversion chaos by providing adapters for different tools, transparent handling of animation types, and platform‑specific components or CLI for quick integration.

7. Dynamic Replacement and Code Generation

Customised lottie‑web enables real‑time replacement of text, images, or entire layers and adds click events. The platform also offers Code Gen that translates Bodymovin transform data into CSS, sequence‑frame CSS, or Animated code snippets, reducing manual effort and ensuring consistency.

Future articles will dive deeper into each technical detail.