C++ glTF 2.0 helper library

A c++ package that allows loading .gltf and .glb (glTF binary format) files according to the glTF 2.0 specification.

Features

• Load .gltf format with external buffers/images.
• Load .gltf format with embedded buffers/images.
• Load .glb format (glTF binary format).
• Dynamic asset info via GLTF::getRuntimeInfo() method

Extensions

Ratified glTF 2.0 extensions:

	Status	Reference
KHR_animation_pointer	Pending	Spec.
KHR_draco_mesh_compression	Pending	Spec.
KHR_lights_punctual	Ok	Spec.
KHR_materials_anisotropy	Pending	Spec.
KHR_materials_clearcoat	Pending	Spec.
KHR_materials_dispersion	Pending	Spec.
KHR_materials_emissive_strength	Pending	Spec.
KHR_materials_ior	Pending	Spec.
KHR_materials_iridescence	Pending	Spec.
KHR_materials_sheen	Pending	Spec.
KHR_materials_specular	Pending	Spec.
KHR_materials_transmission	Pending	Spec.
KHR_materials_unlit	Pending	Spec.
KHR_materials_variants	Pending	Spec.
KHR_materials_volume	Pending	Spec.
KHR_mesh_quantization	Pending	Spec.
KHR_texture_basisu	Pending	Spec.
KHR_texture_transform	Pending	Spec.
KHR_xmp_json_ld	Pending	Spec.
EXT_mesh_gpu_instancing	Ok	Spec.
EXT_meshopt_compression	Pending	Spec.
EXT_texture_webp	Ok.	Spec.

Dependencies

• systems::leal::vector_math C++ vector_math library
• nlohmann/json Json reader/writer library
• cpp-base64 Base64 encode/decode library

Licenses

This library is licensed under MIT license.

gltf library uses the following third party libraries.

• json.hpp : Copyright (c) 2013-2025 Niels Lohmann Link
• base64 : Copyright (C) 2004-2017, 2020-2022 René Nyffenegger Link