1struct Mesh2d {
2    /// Affine 4x3 matrix transposed to 3x4
3    /// Use bevy_render::maths::affine3_to_square to unpack
4    world_from_local: mat3x4<f32>,
5    /// 3x3 matrix packed in mat2x4 and f32 as:
6    /// [0].xyz, [1].x,
7    /// [1].yz, [2].xy
8    /// [2].z
9    /// Use bevy_render::maths::mat2x4_f32_to_mat3x3_unpack to unpack
10    local_from_world_transpose_a: mat2x4<f32>,
11    local_from_world_transpose_b: f32,
12    /// 'flags' is a bit field indicating various options. u32 is 32 bits so we have up to 32 options.
13    flags: u32,
14    /// Index of the material in the bind group data.
15    material_bind_group_slot: u32,
16    tag: u32,
17    /// The index of the mesh metadata buffer.
18    metadata_index: u32,
19};