world-space scene bounds in glTF units
glTF cameras, each with its world transform + the glTF camera parameters (perspective for perspective cameras, orthographic otherwise)
the full node graph (every node's TRS/matrix + children), for custom traversal
parsed KHR_lights_punctual lights (type, color, intensity, range, innerConeAngle/outerConeAngle for spots, world-space direction/position, name)
one entry per mesh primitive: accumulated world transform, vertices, normals, uvs, indices, vertexCount, decoded baseColor image (or null), baseColorFactor, per-vertex colors, sampler-derived textureRepeat/textureFilter, alphaCutoff, emissive, unlit (KHR_materials_unlit), doubleSided, and the source node name
parsed node animations (consumed by
GLTFModelplayback)