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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[2.0.0] - 2020-09-05

Added

  • Support for skinning
  • Instantiation can now be customized via injection

Changed

  • Complete refactor to allow more optimization by using Unity's new Mesh API (introduced in 2019.1)
  • Required Unity version was raised to 2019.1 or newer

[1.2.0] - 2020-09-05

Added

  • Material generator (IMaterialGenerator) is now properly exposed and can be injected ( thanks @p-skakun for #80 )

Changed

  • Reduced memory usage by uploading mesh data instantly and make it no longer readable

[1.1.1] - 2020-05-28

Fixed

  • Unlit shader now works with vertex colors

[1.1.0] - 2020-05-25

Added

  • GltFast.LoadingDone state property indicates if loading routine has finished
  • GltfAssetBase, a minimum asset component for manual loading via script
  • GetMaterial interface, to retrieved imported materials by index.

Changed

  • Added loading state sanity checks to instantiation

Fixed

  • Loading glTFs with materials only (no scene/geometry)
  • Normal texture scale is applied correctly now

[1.0.1] - 2020-04-29

Added

  • Abstract interface IDownloadProvider let's users implement custom download behavior (useful for authentification or caching)
  • Added CustomHeaderDownloadProvider, a reference implementation that downloads glTF's files with custom HTTP headers

Changed

  • Removed support for obsolete draft extensions KHR_texture_cttf and KHR_image_ktx2

Fixed

  • Correct (brighter) colors due to color-space conversion (conversion from linear to gamma before applying to material)
  • Correct shading in linear color space projects due to correct (linear) sampling of normal, occlusion and metallic-roughness maps
  • Memory leak: free up volatile array imageFormats

[1.0.0] - 2020-03-13

Changed

  • Support for Draco mesh compression is now optional (install DracoUnity package to enable it)
  • Support for KTX2/Basis Universal textures is now optional (install KtxUnity package to enable it)
  • Faster mesh creation due to using the advanced Mesh API on Unity 2019.3 and newer.

[0.11.0] - 2020-03-07

Added

  • Support for texture samplers' wrapping mode
  • Support for texture samplers' filter modes (partial; see issue)

Changed

  • Increased performance due to more balanced threading by making all C# Jobs parallel
  • Refactored loading behavior
    • Main loading class does not interfere with it's IDeferAgent anymore. It just follows its order.
    • GltfAsset now has a loadOnStartup flat to disable automatic loading
    • GltfAsset.onLoadComplete now also returns its GltfAsset instance for convenience

Fixed

  • Redundant Load calls when using UninterruptedDeferAgent

[0.10.2] - 2020-02-26

Changed

  • Normals and tangents (if not present) are only calculated if the assigned material actually requires them.

[0.10.1] - 2020-02-24

Added

  • Experimental KTX / Basis Universal support was merged (off by default)

Fixed

  • Proper error handling invalid URL/path
  • Improved glTF-binary URL extension detection
  • Correct index order for line strip primitives (#59)

[0.10.0] - 2020-02-22

Added

  • Support for Universal Windows Platform (not verified/tested myself)

Changed

  • Refactored GltFast class to control loading coroutine in an effort to make usage and future port to async easier.
  • Optimization: Data loading is now based on accessors (rather than primitives). This reduces redundant loading jobs wherever accessors are used across primitives.
  • Optimization: Primitives of a mesh, that share vertex attributes now become sub-meshes of one Unity Mesh. This reduces memory usage and creates less Renderers/GameObjects.
  • glTF type (JSON or binary) is now auto-detected based on file name extension. Removed obsolete GlbAsset. This was done so GltfAsset can be derived off more flexible.

[0.9.0] - 2020-02-02

Added

  • Support for quantized mesh data via KHR_mesh_quantization extension

Changed

  • UV space conversion now happens per UV coordinate (not negatively scaled via texture tiling anymore). This helped to fix tangent calculation.
  • glTF standard shaders now have a cull mode, allowing them to be double-sided. The now obsolete Double variants were removed (thanks to Ben Golus for support)

Fixed

  • Certified correct normal mapping by making normals, UVs and tangents consistent
  • Double sided material fixes

[0.8.1] - 2019-12-05

Fixed

  • Shader compilation error on Vulkan/GLES3

[0.8.0] - 2019-12-05

Added

  • Support for texture transform (extension KHR_texture_transform)
  • Support for double sided materials
  • Support for data URI / embedded buffers and images
  • Support for vertex colors in materials
  • Support for implicit/undefined primitive indices
  • Experimental support for primitive modes points, lines, line strip and line loop

Changed

  • Using custom glTF shaders instead of Unity Standard shaders. This speeds up occlusion and roughness/metallic texture loading since they don't have to be converted at runtime anymore.

Fixed

  • Factor and texture (for metallic-roughness and specular-glossiness) are now multiplied as defined in spec.
  • Unlit materials now support baseColorTexture and texture transforms

[0.7.1] - 2019-11-29

Fixed

  • glTF binary with Draco compression (decoding error due to invalid buffer view access)
  • Legacy .NET speed regression

[0.7.0] - 2019-11-22

Added

  • Unity backwards compatibility (tested with 2018.2 with .NET 3.5)

Changed

  • Removed job-less support
  • The node or primitive GameObjects now have their mesh's name, if there is no node name provided

Fixed

  • Correct transforms and coordinate space. The glTF scene's root node is not scaled negative in any axis anymore
  • Texture default wrap mode is repeat (not set to clamp anymore)

[0.6.0] - 2019-11-15

Added

  • Support for unlit materials (KHR_materials_unlit extension)
  • Support for specular-glossiness type materials (KHR_materials_pbrSpecularGlossiness extension)

Fixed

  • Fixed broken assembly references by switching to non-GUID refs (thanks Stephen Gower for pointing it out)
  • Metallic-Roughness texture not working. Now they are created only after their source was properly loaded.

[0.5.0] - 2019-09-14

Added

  • Draco mesh compression support

Fixed

  • Report unsupported glTF extensions and gracefully fail if a required extension is not supported.

[0.4.0] - 2019-07-24

Changed

  • Tranformed Project into a Unity Package, which can easily be installed via Package Manager

0.3.0 - 2019-06-30

Added

  • Threaded glTF loading via Unity Job System

Changed

  • Update to Unity 2019.1.7f1
  • Formatted ChangeLog markdown file

0.2.0 - 2019-02-22

Added

  • Support for regular JSON glTFs (non-binary)

[0.1.0] - 2018-11-27

Added

  • First pre-release

[0.0.5] - 2018-09-02

Fixed

  • Support for meshes with more than 65k vertices.

[0.0.4] - 2018-06-20

Fixed

  • free up memory when destroying content

[0.0.3] - 2018-05-29

Added

  • Added support for interleaved vertex data

[0.0.2] - 2018-05-20

Added

  • added support for 3 component vertex colors (rgb without alpha)
  • added support for uint16 vertex colors

Fixed

  • fixed metallic roughness texture usage (workaround)
  • fixed occlusion texture usage (workaround)

[0.0.1] - 2018-05-12

Added

  • initial version