glTFast 2.4.0

Added

• Partial support for transmission materials in built-in render pipeline (extension KHR_materials_transmission; see #111 for details)

Changed

• Performance improvement: Avoid redundant Shader.Find invocations by making cached shader references static
• Built-In shaders can customized now by overriding BuiltInMaterialGenerator.FindShader* methods

Fixed

• Unlit double sided shader graph materials

Note: The next major release (3.0.0) will raise the minimum required Unity version to 2020.2 and subsequently up to 2020.4 LTS. This is necessary to support new material features in Universal and High Definition Render Pipelines.