Document writing custom shaders on the website #107929
Description
When the APIs are stable, we should add documentation or a tutorial to the website on writing custom shaders.
In particular:
- What input formats are supported
- How to add one to an app
- How to obtain a FragmentProgram
- How to use a FragmentProgram to obtain a
Shader - How to use that shader in a scene/widget
- Best practices for structuring this code efficiently