<div>Thanks, David. I can refresh this issue time to time. Maybe someone knows can help me.</div>
<div> </div>
<div>Thank you for your kindly help.</div>
<div> </div>
<div>Wenlong<br><br></div>
<div class="gmail_quote">2011/8/31 David Doria <span dir="ltr"><<a href="mailto:daviddoria@gmail.com">daviddoria@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div class="im">>> The intensity I mentioned is light intensity on particular point on my<br>>> model. My model is composed by 5090 3D points. I put all these points into a<br>>> vtkPolyData object and bind it to an vtkActor. I haven't set any lighting<br>
>> sources but ambient light.<br>>><br>>> Yes, I want to know how much light in the scene is reflecting from a<br>>> particular point at the surface of my model.<br></div>
<div class="im">> And yes, the model is a mesh.<br><br></div>
<div class="im">>> Thank you very much.<br>>><br>>> Wenlong<br><br></div>Please keep your replies on the mailing list so everyone can help and learn.<br><br>How do you want to specify the point at which to get the intensity? As<br>
a 3D point? Do you want the intensities only at points that exist in<br>your model? Or also at points inside the model triangles?<br><br>Unfortunately I've never done this, but this information will<br>certainly help you get an answer from someone who has.<br>
<font color="#888888"><br>David<br></font></blockquote></div><br>