Seeking input on Material Fabric schema

[mzschwartz5]

Hello CesiumJS users!

Materials in Cesium are based on the Fabric schema. This schema defines components (alpha, diffuse, etc.), uniforms, and more. While working on a PR to add an async factory method to the Material class, it came to my attention that Material’s only support certain texture settings (like min and mag filters) at the top-level. There’s no support for per-texture sampler settings (Materials can have multiple textures).

I feel that the most sensible way to support per-texture settings would be to add a property on the schema, “samplers”, which would map each texture name to an object of sampler settings.

The Material schema hasn’t changed for 13 years; while this proposal would be backwards compatible, I’d like to double check with the community that there aren’t any obvious objections to it.

Thanks!

Matt

Async material constructor