<div dir="ltr">I have known how to render a hollow cube,but have no idea about solid cube. <br clear="all"><div><br></div>-- <br><font face="arial, helvetica, sans-serif" size="6" color="#33ff33"><a href="mailto:pangqingyuan1991@gmail.com" target="_blank">ΕΣΗμΤ΄<span></span><span></span></a></font>
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