glTFast 6.3.0

Added

• Runtime import tests.
• Runtime export tests.
• (Export) Added development-time checks for valid JSON string literals.
• Added Apple Privacy Manifest file to /Plugins directory.

Changed

• Refactored test scripts folder layout.
• (Export) Normal maps are exported in PNG format by default.
• (Export) HDRP area lights are still exported as spot-lights, but their intensity is taken from Light.intensity (still incorrect, but more consistent).
• Switched from asset-path-based to GUID-based shader loading (in the Editor 2021 and newer) in order to allow for a flexible folder layout without risking breaks/regressions should the layout change in the future.
• Avoid expensive UnityEngine.Object null check when accessing cached default shaders.

Fixed

• Exception when required glTF shader is not included.
• Compiler errors when safe mode (GLTFAST_SAFE scripting define) is enabled.
• Compiler error with High Definition Render Pipeline version 17 (2023.3)
• Removed usage of obsolete APIs in High Definition Render Pipeline version 17 (2023.3)
• (Export) Area light's range value is exported accurately (as shown in the inspector).
• Various occasions of NullReferenceException when no logger is used/provided.
• Proper error handling when trying to load unsupported sparse texture coordinates.
• Ensure that special chars in string values don't lead to invalid JSON.
• Using invariant culture ToLower/ToUpper variants on all non-language-specific data.
• Added missing GetHashCode implementation (removes compiler warning).
• Compiler errors and warnings on newer HDRP versions (16.x/17.x)
• URP clearcoat shader loading at runtime.
• HDRP stack-lit shader loading at runtime.