Function raycast_many 

pub fn raycast_many(
    mesh: &Mesh,
    bvh: &Bvh,
    origins: &[[f32; 3]],
    dirs: &[[f32; 3]],
    opts: &RayOptions,
    out: &mut [Option<RayHit>],
) -> Result<()>

raycast for many rays: out[i] gets the nearest hit of the ray origins[i] + t * dirs[i].

Errors

QueryError::InvalidInput when the three slices differ in length or any ray is invalid, and otherwise as for raycast. Every ray is validated before anything is written, so on error out is unchanged.