Added

• New functions animation::Channel::index and animation::Sampler::index.
• New feature flag allow_empty_texture to avoid required extension checks.

Fixed

• Fix attempt to to subtract with overflow-panic in size_hint() of sparse accessor when collecting items.
• Fix incorrect values returned from size_hint() in sparse accessor.
• Add support to read items from sparse accessor without base buffer view.

Changed

• Update image to 0.25.0.
• Validation will now fail if a glTF document requires extensions that are not supported by the crate.

Removed

• Feature image_jpeg_rayon no longer needed, as image 0.25.0 now uses zune-jpeg for jpeg decoding.

Changed

• Update image to 0.25.0.

Removed

• Feature image_jpeg_rayon no longer needed, as image 0.25.0 now uses zune-jpeg for jpeg decoding.

Added

• New API for reading arbitary extension data.
• Interval improvements to prevent panics on 32 bit systems when loading large glTF files.

Changed

• Offsets and sizes in the gltf-json crate have been widened to 64 bits.
• Loading glTF on a 32 bit system containing offsets or sizes larger than u32 will result in a validation error.

Fixed

• Gltf::from_reader no longer winds the reader back to offset zero.
• Broken link in Material::unlit documentation.

Added

• Support for the KHR_materials_emissive_strength extension.

Fixed

• Accessor::byte_offset is now optional for sparse accessors.

Added

• New functions import_buffers and import_images for advanced import use cases.

Changed

• Primitive::attributes now uses BTreeMap instead of HashMap deterministic serialization.

Fixed

• Fix relative file path imports with url encoded characters.
• Fix bounds calculation in export example.

[1.0.0] - 2022-01-29

Added

• Support for the KHR_materials_specular extension.
• Support for the KHR_materials_variants extension.
• Support for the KHR_materials_volume extension.
• ExactSizeIterator implementation for Joints iterator.

Changed

• The mesh.primitives property is now always serialized.

Fixed

• Incorrect implementation of Normalize<u16> and Normalize<f32> for u16.

Added

• Support for the KHR_materials_specular extension.
• Support for the KHR_materials_variants extension.
• Support for the KHR_materials_volume extension.
• ExactSizeIterator implementation for Joints iterator.

Changed

• The mesh.primitives property is now always serialized.

Fixed

• Incorrect implementation of Normalize<u16> and Normalize<f32> for u16.

Added

• Support for the KHR_texture_transform extension.
• Support for the KHR_materials_transmission_ior extension.

Changed

• Material::alpha_cutoff is now optional.

Fixed

• URIs with embedded data failing to import when using import_slice.
• Serialization of empty primitives object being skipped.

Changed

• All features are now exposed in the online documentation.
• Primary iterators now implement Iterator::nth explicitly for improved performance.

Fixed

• Compiler warnings regarding deprecation of std::error::Error::description.

Added

• New feature guess_mime_type which, as the name suggests, attempts to guess the MIME type of an image if it doesn't exactly match the standard.

Changed

• base64 updated to 0.11.
• byteorder updated to 1.3.
• image updated to 0.23.0.
• Format has additional variants for 16-bit pixel formats.

Fixed

• Off-by-one error when reading whole files incurring a gratuitous reallocation.

2020-01-18

Added

• Support for the KHR_materials_unlit extension, which adds an unlit field
  to Material.
• ExactSizeIterator implementations for accessor iterators.

Fixed

• Some lifetimes for accessing fields (e.g. Node::children) have been relaxed.
• Accessor::buffer_view is now optional for the benefit of sparse accessors.

Removed

• animation::Interpolation::CatmullRomSpline

Added

• Support for the KHR_materials_unlit extension, which adds an unlit field to Material.
• ExactSizeIterator implementations for accessor iterators.

Fixed

• Some lifetimes for accessing fields (e.g. Node::children) have been relaxed.
• Accessor::buffer_view is now optional for the benefit of sparse accessors.

Removed

• animation::Interpolation::CatmullRomSpline

2019-10-06

Added

• import_slice function.
• Clone and Debug implementations for Material.
• accessor::util::SparseIter and accessor::util::SparseIndicesIter which
  iterate over items and indices in sparse accessors respectively.

Changed

• accessor::util::Iter is now an enum; sparse accessors are now read correctly.
• The original version of accessor::util::Iter has been renamed as ItemIter.

Added

• import_slice function.
• Clone and Debug implementations for Material.
• accessor::util::SparseIter and accessor::util::SparseIndicesIter which iterate over items and indices in sparse accessors respectively.

Changed

• accessor::util::Iter is now an enum; sparse accessors are now read correctly.
• The original version of accessor::util::Iter has been renamed as ItemIter.

2019-07-27

Added

• Support for the KHR_lights_punctual extension.
• gltf-roundtrip example.

Changed

• Renamed validate_minimally as validate.
• Removed dependency on cgmath.

Fixed

• Incorrect version in README instructions.
• Compiler warnings.

Removed

• Trait function Validate::validate_completely and its implementations.

Added

• Support for the KHR_lights_punctual extension.
• gltf-roundtrip example.

Changed

• Renamed validate_minimally as validate.
• Removed dependency on cgmath.

Fixed

• Incorrect version in README instructions.
• Compiler warnings.

Removed

• Trait function Validate::validate_completely and its implementations.

2019-04-21

Added

• New image format variants B8G8R8 and B8G8R8A8.
• New export example.

Changed

• The crate now builds with Rust 2018 edition.
• Extras are now exposed as RawValue.
• Index now implements Copy.
• Meshes will no longer report a zero byte stride.
• Updated the following dependendies:
  • approx
  • base64
  • cgmath
  • image
  • lazy_static
  • proc_macro2
  • quote
  • syn

Fixed

• Removed an unused field in Accessor which was a cause of poor performance.
• Borrow checker complaint regarding Glb::from_reader.

Added

• New image format variants B8G8R8 and B8G8R8A8.
• New export example.

Changed

• The crate now builds with Rust 2018 edition.
• Extras are now exposed as RawValue.
• Index now implements Copy.
• Meshes will no longer report a zero byte stride.
• Updated the following dependendies:
  • approx
  • base64
  • cgmath
  • image
  • lazy_static
  • proc_macro2
  • quote
  • syn

Fixed

• Removed an unused field in Accessor which was a cause of poor performance.
• Borrow checker complaint regarding Glb::from_reader.

2019-02-21

Added

• New function gltf_json::Index::new for export.
• Support for the KHR_materials_pbrSpecularGlossiness extension.
• Extra Eq and PartialEq implementations.

Fixed

• Accessor::min is no longer serialized if None.
• Extras::_allow_unknown_fields is no longer serialized.
• bufferView.byteOffset is now optional.
• Node translation/rotation/scale values are now optional.
• Removed serialization of some default values.
• extras::Void is no longer serialized.

Added

• New function gltf_json::Index::new for export.
• Support for the KHR_materials_pbrSpecularGlossiness extension.
• Extra Eq and PartialEq implementations.

Fixed

• Accessor::min is no longer serialized if None.
• Extras::_allow_unknown_fields is no longer serialized.
• bufferView.byteOffset is now optional.
• Node translation/rotation/scale values are now optional.
• Removed serialization of some default values.
• extras::Void is no longer serialized.

2018-07-08

Fixed

• JSON chunk padding is now padded with spaces (0x20) rather than zeros.
• None is no longer serialized.
• Vec is no longer serialized when empty.

Fixed

• JSON chunk padding is now padded with spaces (0x20) rather than zeros.
• None is no longer serialized.
• Vec is no longer serialized when empty.

2018-06-10

Added

• payload field in Gltf in order to handle binary glTF directly.
• Error::Io enum variant.
• Gltf::from_reader_without_validation and Gltf::from_slice_without_validation.
• All functionality from the gltf-utils crate, feature gated with the new
  utils feature.
• Most functionality from the gltf-importer crate, feature gated with the
  new import feature.
• enum Uri to represent uniform resource locators.

Changed

• fn Gltf::from_* now imports binary glTF as well as standard glTF.
• fn Gltf::from_reader now requires reader to implement std::io::Seek.
• Buffer::uri now returns None in the case of binary glTF payload instead
  of the magic string "#bin".
• The POSITION attribute is now required by all mesh primitives.
• Several renames:
  • glb → binary.
  • Error::Glb → Error::Binary.
  • TrsProperty → Property.
  • InterpolationAlgorithm → Interpolation.
  • Target::path → Target::property.
  • Primitive::position_bounds → Primitive::bounding_box.
• The names feature is now enabled by default, along with utils and
  import. Rationale: Pareto principle.

Fixed

• Data structures in gltf_json now implement Serialize.

Removed

• fn Gltf::from_str -- use fn Gltf::from_slice instead.
• fn Gltf::from_value -- no longer supported.
• fn gltf::is_binary -- use slice.starts_with("glTF") instead.
• struct Unvalidated -- replaced with enum Validation.
• crate gltf-importer -- no longer supported.
• Node::matrix -- use transform().matrix() instead.
• Node::rotation -- use transform().decomposed() instead.
• All hidden as_json functions -- no longer supported.

Added

• payload field in Gltf in order to handle binary glTF directly.
• Error::Io enum variant.
• Gltf::from_reader_without_validation and Gltf::from_slice_without_validation.
• All functionality from the gltf-utils crate, feature gated with the new utils feature.
• Most functionality from the gltf-importer crate, feature gated with the new import feature.
• enum Uri to represent uniform resource locators.

Changed

• fn Gltf::from_* now imports binary glTF as well as standard glTF.
• fn Gltf::from_reader now requires reader to implement std::io::Seek.
• Buffer::uri now returns None in the case of binary glTF payload instead of the magic string "#bin".
• The POSITION attribute is now required by all mesh primitives.
• Several renames:
  • glb → binary.
  • Error::Glb → Error::Binary.
  • TrsProperty → Property.
  • InterpolationAlgorithm → Interpolation.
  • Target::path → Target::property.
  • Primitive::position_bounds → Primitive::bounding_box.
• The names feature is now enabled by default, along with utils and import. Rationale: Pareto principle.

Fixed

• Data structures in gltf_json now implement Serialize.

Removed

• fn Gltf::from_str -- use fn Gltf::from_slice instead.
• fn Gltf::from_value -- no longer supported.
• fn gltf::is_binary -- use slice.starts_with("glTF") instead.
• struct Unvalidated -- replaced with enum Validation.
• crate gltf-importer -- no longer supported.
• Node::matrix -- use transform().matrix() instead.
• Node::rotation -- use transform().decomposed() instead.
• All hidden as_json functions -- no longer supported.

Yanked

2018-03-05

Fixed

• gltf_utils::AccessorIter::new is marked pub again.

Fixed

• gltf_utils::AccessorIter::new is marked pub again.

2018-03-04

Added

• ChannelIterators.

Changed

• Rework of GLB parser and AccessorIter in order to reduce unsafe code and
  to allow loading of binary glTF data on non-little-endian machines.
• More descriptive errors in the gltf and gltf_importer crates.
• Gltf::skip_validation is no longer marked unsafe.

Added

• ChannelIterators.

Changed

• Rework of GLB parser and AccessorIter in order to reduce unsafe code and to allow loading of binary glTF data on non-little-endian machines.
• More descriptive errors in the gltf and gltf_importer crates.
• Gltf::skip_validation is no longer marked unsafe.

Fixed

• gltf_utils::PrimitiveIterators::joints_u16 implementation.

Fixed

• Incorrect implementation of Transform::decomposed (issue #99)

Added

• scene::Transform type, returned by Node::transform.
• MorphTarget type and a corresponding MorphTargets iterator.
• Gltf::from_glb function.
• Gltf::default_scene function.

Changed

• as_json functions are now hidden from the documentation.
• scene::Children is bound to the lifetime of Gltf instead its parent Node
• Documentation has been improved across the crate.

Removed

• root module.
• Default constructors for Material and texture::Sampler.

Deprecated

• Node::matrix/translation/rotation/scale in favour of Node::transform.
• json module.

Added

• New gltf-utils crate, which removes the need for the Loaded wrapper struct.
• New Attributes iterator, which visits all vertex attributes of a Primitive.
• New glb module, containing functions for parsing .glb (binary glTF) files.
• New is_binary function, which tests for the glTF magic string.
• New 'explicit' validation strategy with the gltf::Unvalidated type.
• New Bounds type describing the minimum and maximum values of accessors.
• New Accessor::position_bounds convenience function.
• Info, NormalTexture, and OcclusionTexture now implement AsRef<Texture>.

Removed

• Removed the Loaded struct in favour of new traits in the gltf-utils crate.

Added

• Implemented ExactSizeIterator for primitive iterators.

Changed

• Fixed incorrect buffer view slicing from accessors.
• Wrapper struct constructors now use pub(crate) instead of #[doc(hidden)].
• Hence the crate now requires rustc version 1.18 or above to build.

Added

• Added the gltf-tree example which displays the node heirarchies of scenes.

Changed

• Fixed mismatched names and extras feature flags.

Removed

• Removed broken link to gltf-importer in the crate documentation.

Changed

• No concrete changes (unsuccessful update to documentation).

Added

• New Loaded type, which provides glTF objects with buffer data.
• New gltf-json crate which replaces the json module. This is intended to improve build times.
• Exported names and extras features from the new gltf-json crate.

Changed

• Redesign of the Source trait so that it no longer performs I/O.

Added

• Image::data now returns a DynamicImage, allowing for post-processing.

Added

• New wrapper interface.
• Source trait, which allows for customizing the import process.
• Reference Source trait implementation, namely FromPath, that can read from the file system and decode embedded base64 data URIs.
• Support for binary glTF.
• Validate trait, which validates glTF JSON metadata.
• Import struct which drives the asynchronous loading of glTF data.
• "Poor man's zero-copy deserialization".

Changed

• Moved all extension data structures into a new extensions module.
• Made the Get trait behave the same as the TryGet trait.

Removed

• Removed the v1 module, as the crate no longer supports glTF 1.0.
• Removed the TryGet trait in favour of the redesigned Get trait.

Added

• New v2 module, containing all glTF 2.0 data structures.
• Initial implementation of the glTF 2.0 data structures.

Changed

• Internal improvements to decrease the crate build time.

Added

• New v1 module, containing all glTF 1.0 data structures.
• glTF objects are now categorised in submodules.
• Complete implementation of the glTF 1.0 data structures.

Removed

• Removed gl crate dependency.

Changed

• Updated links to the official glTF documentation.

Changed

• Allowed the crate to build on the latest stable rustc (1.15) using the new serde frontend, i.e. with the serde proc_macro.

Changed

• Allowed the crate to build on the latest stable rustc (1.14) using the serde_codegen crate.

Added

• Added Technique data structure for glTF 1.0.

Added

• New documentation for glTF 1.0.

Added

• Initial (incomplete) glTF 1.0 implementation.