Function build_line_pattern_batch 

pub fn build_line_pattern_batch(
    device: &Device,
    queue: &Queue,
    mesh: &VectorMeshData,
    camera_origin: DVec3,
    uniform_buffer: &Buffer,
    uniform_bgl: &BindGroupLayout,
    texture_bgl: &BindGroupLayout,
    pattern_sampler: &Sampler,
) -> Option<LinePatternBatchEntry>

Build a line-pattern batch entry from engine mesh data.

Returns None if the mesh has no indices, no pattern UVs, or no pattern image.