Function axiolid_v0_4_visible_faces 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn axiolid_v0_4_visible_faces(
    context: AxiolidContextHandle,
    meshes: *const AxiolidViewMesh,
    mesh_count: usize,
    view: *const AxiolidView,
    region: *const AxiolidImageBox,
    limits: *const AxiolidVisibleFaceLimits,
    tolerance_value: AxiolidTolerance,
    out_result: *mut AxiolidResultHandle,
) -> AxiolidStatus

Find the regions where each face group is frontmost and return an owned result handle (read it with the visible_faces_* functions).

meshes and every groups array are borrowed for this call. A null region is no crop. The context’s max_meshes bounds mesh_count.

Safety

Every non-null pointer must be aligned and valid for the documented read or write extent.