_ptr</code> and <code>*maximum_ptr</code> to the minimum and maximum values in the given channel. </p>
<p>If all faces have size 0 x 0 (in which case the cube surface <a class="el" href="structnvtt_1_1_cube_surface.html#acdf0f2e1e156b6d184e886f13b8f9061" title="Returns if this CubeSurface is null (i.e. has no underlying data, or all faces have size 0x0)...">isNull()</a>), this will set <code>*minimum_ptr</code> to <code>FLT_MAX</code> and <code>*maximum_ptr</code> to 0.0f. </p>

</div>
</div>
<a class="anch