6.17.0

[6.17.0] - 2026-03-17

Added

• Texture loading is fully customizable via Add-Ons.
  • Inject support for glTF texture extensions (see ITextureImageLoader).
  • Customize PNG and Jpeg loading (see IDefaultImageFormatLoader).
  • See ImageAddonTest scene in the tests package which use the AddOnsImage samples from the DocExamples directory.
• Explicit error message when unsupported image format WebP is detected (LogCode.ImageFormatUnsupported).
• ImageResult which depicts an imported glTF image.
• (Test) TextureVariants test glTFs with WebP image format.
• Extension.TextureWebP (no general WebP support, just for handling WebP cases).

Changed

• (Add-Ons) GltfImport now accepts multiple import add-on instances of the same type.
  • GetImportAddonInstance returns the first instance that matches the type.
• Ensured compatibility with Fast Enter Play Mode.
• Image type detection is based on content (instead of mime-type depicted in glTF JSON, data URI mediatype or file extension).
• Improved error message when image format is detected, but not supported (e.g. WebP).

Fixed

• (Import) AnisotropicFilterLevel setting is applied to KTX textures as well.
• (Import) Leak of textures in case of loading errors.
• (Export) Meshes with zero vertices or indices will now be skipped and an error will be logged instead of an exception being thrown (fixes #806).