<br><div>Dear All,</div><div><br></div><div>I am a postgraduate student and I am developing a software for the laparoscopic surgery. I make a 3D image and then <span style="line-height:19px;text-align:justify;color:rgb(34,34,34);font-family:palatino,georgia,verdana,arial,sans-serif">I need to put a mask which is black everywhere but in the center for a radious of about 500 pixels....through which I want to see my 3D model behind.</span></div>
<div style="text-align:justify"><font color="#222222" face="palatino, georgia, verdana, arial, sans-serif"><span style="line-height:19px">I tried to change vtkCamera - SetViewAngle, vtkWarpLens, but failed. If anyone knows how to do it, please let me know. Thank you.</span></font></div>
<div style="text-align:justify"><font color="#222222" face="palatino, georgia, verdana, arial, sans-serif"><span style="line-height:19px"><br></span></font></div><div style="text-align:justify"><font color="#222222" face="palatino, georgia, verdana, arial, sans-serif"><span style="line-height:19px">Regards,</span></font></div>
<div style="text-align:justify"><font color="#222222" face="palatino, georgia, verdana, arial, sans-serif"><span style="line-height:19px">Sahan</span></font></div>