<font><font face="verdana,sans-serif">As I said, I am no VTK expert. I was merely trying to point you in the right direction, until one of the experts gives a better advice.<br></font></font><br><div class="gmail_quote">On Mon, Jul 30, 2012 at 6:05 PM, Jana Sefcikova <span dir="ltr"><<a href="mailto:neollie@gmail.com" target="_blank">neollie@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Dzenan, I think that OpenGl uses Phong reflectance model.<div>I experimented with VTK and my implementation and I did not obtain same result:</div>
<div><a href="http://vtk.1045678.n5.nabble.com/What-illumination-formula-use-VTK-it-does-not-look-as-pure-Phong-tc5714982.html" target="_blank">http://vtk.1045678.n5.nabble.com/What-illumination-formula-use-VTK-it-does-not-look-as-pure-Phong-tc5714982.html</a></div>
<div>I never comared in such way Opengl and my code, but currently I need it for VTK.</div><div>I am looking for some method, or shader, where it is computed ... </div><div><br></div><div>Thanks, </div><span class="HOEnZb"><font color="#888888"><div>
Jana</div>
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