Skia VS Open-Source Vulkan C++ API

Actually, that's not entirely accurate. The lottie-web library itself doesn't support rendering to WebGL. However, there is a package called canvaskit-wasm that wraps Skia (a graphics engine) with WebAssembly (wasm). This package includes a module called skottie which supports rendering animations into a WebGL surface. However, there is a drawback with this approach: using wasm requires loading a relatively large package, and it's uncertain whether all features are supported correctly, as the official compatibility table that tracks lottie support on different platforms does not include skottie.

Skia is pretty great if you can get it running.

The imgs are mainly used by Tencent QQ and Baidu Tieba users. QQ and Tieba compress imgs by default, so the popular imgs (in China we call them "屌图" or "表情包") would be compressed million of times during the spreading, causing the super low quality. These APPs on Android are using Skia for image processing, which suffering from a legendary bug: result would be more green. The bug was fixed in 2016: https://github.com/google/skia/commit/c7d01d3e1d3621907c27b283fb7f8b6e177c629d

There’s also Skia by Google. Used by Android and Google Chrome.

It might be useful to maybe look at the Vulkan.hpp examples since you can do the same in about 200 lines of code. https://github.com/KhronosGroup/Vulkan-Hpp/blob/main/samples/15_DrawCube/15_DrawCube.cpp

Wow that library looks amazing, I'll definitely be using it. Bonus that it's official from the Khronos Group. https://github.com/KhronosGroup/Vulkan-Hpp

Even auto-generated c++ wrappers like vulkan-hpp require lots of manual maintenance.

Ultimately I went with vulkan.hpp RAII bindings, even though that way also has some learning curve and I couldn't find any documentation other than the RAII programming guide. It's great for getting started, but could use a complementary auto-generated API doc. There are also decent programming samples, which really suck for getting started, but otherwise do a good job of presenting concepts they focus on. Putting the available resources together I was able to get a project going in two weekends.

This is exactly how the official Vulkan C++ API, Vulkan-Hpp does it. For the precise example mentioned in the blog post:

Or the vulkan.hpp RAII samples would be a good place?

For a real-life example: consider the vk::raii namespace of Vulkan-Hpp, where the developers have posted examples. The vk::raii::su namespace has a bunch of free functions that one might think are associated with a Vulkan instance/object (in fact, the Vulkan Tutorial does implement them as member functions), but they are much nicer when used as pure functions. It keeps the class/struct definition itself nice and clean.

final c++17 draft (N4659) first post-publication draft after c++20 (N4868) vulkan-structs.hpp (containing the vk::ImageCreateInfo definition) VkImageCreateInfo struct