be__ptr.html" class="m-doc">sprite_<wbr />affine_<wbr />mat_<wbr />pa_<wbr />register_<wbr />hbe_<wbr />ptr</a>&gt; bn::<wbr />sprite_affine_mat_pa_register_hbe_ptr::<wbr /></span><span class="m-doc-wrap"><span class="m-doc-wrap-bumper"><a href="#aeecde935797e809676866875fbac0c09" class="m-doc-self">create_optional</a>(</span><span class="m-doc-wrap"><a href="classbn_1_1sprite__affine__mat__ptr.html" class="m-doc">sprite_<wbr />affine_<wbr />mat_<wbr />ptr</a> affine_mat,
              const <a href="classb