Esoteric Software

[chenenyu]

Hi, i'm writing an runtime for Flutter, and i referenced spine-webgl in spine-ts, but i noticed that the implementation of spine-webgl used shader and WebGLRenderingContext, which are not exists in Flutter. How can i evade these limitations to get a simple implementation?

[Mario]

You can use Flutter's Canvas API instead. The general structure of your code will follow SkeletonRenderer from spine-webgl. You can use:

1. https://api.flutter.dev/flutter/dart-ui/Canvas/clipPath.html for clipping attachments
2. https://api.flutter.dev/flutter/dart-ui/Canvas/drawVertices.html for rendering RegionAttachment and MeshAttachment including blend mode support.

You'll also need a way to load images for texture atlas pages. I'm unfamiliar with how that works in Flutter, it should be simple to load images that can be drawn via Canvas though.

[sign]

Hi, i'm writing an runtime for Flutter, and i referenced spine-webgl in spine-ts, but i noticed that the implementation of spine-webgl used shader and WebGLRenderingContext, which are not exists in Flutter. How can i evade these limitations to get a simple implementation?

The forum http://esotericsoftware.com/forum/Will-Spine-Runtime-support-for-Flutter-16672?p=74832 is discussing a topic whose posts might make you happy