核实 Rive 与 Lottie 的 Lottie 比较
我最近偶然发现了以下页面：https://rive.app/blog/rive-as-a-lottie-alternative。我觉得Rive在最近的信息基础上，官方将自己与Lottie进行比较是很有趣的。然而，我对关于Lottie的许多模糊或不准确的说法感到相当惊讶。作为一名熟悉Lottie的开发者，我想对几个关键点提供不同的看法。
1. 响应性
关于Lottie“重新生成动画”以适应不同屏幕尺寸的说法令人困惑。在大多数图形用户界面环境中，响应性是通过标准布局和滚动系统来处理的。由于Lottie动画是基于矢量的，它们自然会根据分配的布局按比例缩放。无需重新生成动画——实时渲染可缩放矢量图形已经是设计中内置的功能。
2. 动态数据集成
将Lottie描述为严格静态是不准确的。Lottie支持脚本编写，并允许在运行时更新动画属性，从而实现由外部数据或用户交互驱动的动态行为。
3. 模糊和阴影
Lottie完全支持基于矢量的效果，如高斯模糊和投影阴影。这些效果作为可缩放的矢量效果进行渲染——这具体如何增加文件大小是没有道理的。
4. 蒙版
Lottie有多种类型的蒙版，包括至少四种不同的模式。其中最强大的功能是Matte特性，它远远超出了基本的alpha蒙版，允许使用高级合成技术。
5. 文件大小和渲染
仅依赖于二进制格式进行生产使用在灵活性方面可能会受到限制。Lottie的基于文本的JSON格式易于阅读、编辑，并且在构建或打包过程中可以进行压缩。它允许设计师和开发者在优化前有效地协作，然后选择性地转换为二进制格式。
6. GPU加速渲染
许多Lottie运行时支持GPU加速。此外，Lottie轻量且灵活的架构使其能够在广泛的设备上运行，包括低功耗的物联网硬件。这种适应能力是一个关键优势，而不是弱点。
7. 资产管理
是否嵌入资产或外部链接完全取决于开发者。Lottie在这方面提供了灵活性——它并不局限于嵌入资产。
8. 平台支持
Lottie已经支持广泛的平台。许多第三方用户插件已集成到主要引擎中，如Unity，甚至Godot也即将正式支持Lottie集成。即使在基于MCU的芯片组、物联网或实时操作系统设备上，Lottie也能正常运行。
在我看来，在官方公司页面上发布不正确或虚假的信息，仿佛它是真实的，这种做法应该谨慎对待。
查看原文
I happened to come across the following page recently: https://rive.app/blog/rive-as-a-lottie-alternative
I found it interesting that Rive officially compared itself to Lottie based on fairly recent information. However, I was quite surprised by the many vague or inaccurate statements made about Lottie. As a developer familiar with Lottie, I'd like to offer a different perspective on a few key points.<p>1. Responsiveness<p>The claim that Lottie "regenerate animations" to scale for different screen sizes is puzzling. In most GUI environments, responsiveness is handled by standard layout and scrolling systems. Since Lottie animations are vector-based, they naturally scale according to their aspect ratio within the assigned layout. There is no need to regenerate the animation—rendering scalable vector graphics in real time is already built into the design.<p>2. Dynamic Data Integration<p>It’s inaccurate to describe Lottie as strictly static. Event Lottie supports scripting and allows runtime updates of animation properties, enabling dynamic behavior driven by external data or user interaction.<p>3. Blurs and Shadows<p>Lottie fully supports vector-based effects such as Gaussian blur and drop shadows. These are rendered as scalable vector effects— How this specifically increases file size. Doesn't make sense.<p>4. Masking<p>Lottie has multiple types of masking, including at least four distinct modes. One of the most powerful is the Matte feature, which goes well beyond basic alpha masking and allows for advanced compositing techniques.<p>5. File Size and Rendering<p>Relying solely on a binary format for production use can be limiting in terms of flexibility. Lottie's text-based JSON format is easily readable, editable, and compressible during the build or packaging process. It allows for streamlined workflows where designers and developers can collaborate effectively before optionally converting to a binary format for optimization.<p>6. GPU-Accelerated Rendering<p>GPU acceleration is available in many Lottie runtimes, moreover, Lottie's lightweight and flexible architecture enables it to run on a wide range of devices, including low-power IoT hardware. This level of adaptability is a key strength, not a weakness.<p>7. Asset Management<p>Whether to embed assets or link to them externally is entirely up to the developer. Lottie offers flexibility in this regard—it is not restricted to embedded assets only.<p>8. Platform Support<p>Lottie already supports a broad range of platforms. There are 3rd-party user plugins integrated into major engines like Unity and even Godot has upcoming support for Lottie integration officially. Even Lottie is is capable on on MCU-based chipsets, IoT, or RTOS devices.<p>IMHO, Publishing incorrect or false information as if it were true on an official company page is something that should be approached with caution.