glTFast for Unity

glTFast is an extension for the Unity engine and has the role of enabling the use of GL Transmission Format (glTF) asset files. According to the developer, the tool has 100% glTF 2.0 specifications compliance, so it should come in handy for new and older projects alike. Moreover, it works with Universal, High Definition and the Built-In Render Pipelines on all platforms.

The extension can be used in Unity in four use cases, namely editor export, editor import, runtime export and runtime import or loading. It goes without saying the behaviors can be customized according to the project’s specifications in terms of downloading, file loading, material generation, instantiation, accessing data of glTF scene or loading reports, just to name a few.

It is worth mentioning that the extension custom shaders that the developer insists users must include in builds in order to make materials work. In case they are not included in the builds although the materials are fine in the Unity Editor, then there is a good chance that some shaders or variants are going to be missing. An alternative would be to create placeholder materials for all the feature combinations users expect to use and place them in the Resource folder of the project.