<div dir="ltr">Try using depth peeling to resolve the transparency. <div><br></div><div><div><br></div><div> //@{</div><div> /**</div><div> * Turn on/off rendering of translucent material with depth peeling</div><div> * technique. The render window must have alpha bits (ie call</div><div> * SetAlphaBitPlanes(1)) and no multisample buffer (ie call</div><div> * SetMultiSamples(0) ) to support depth peeling.</div><div> * If UseDepthPeeling is on and the GPU supports it, depth peeling is used</div><div> * for rendering translucent materials.</div><div> * If UseDepthPeeling is off, alpha blending is used.</div><div> * Initial value is off.</div><div> */</div><div> vtkSetMacro(UseDepthPeeling,int);</div><div> vtkGetMacro(UseDepthPeeling,int);</div><div> vtkBooleanMacro(UseDepthPeeling,int);</div><div> //@}</div></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Nov 8, 2017 at 6:09 AM, marcin.krotkiewski <span dir="ltr"><<a href="mailto:marcin.krotkiewski@gmail.com" target="_blank">marcin.krotkiewski@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear developers,<br>
<br>
I am observing strange rendering artifacts on my triangulated surface when I use transparency. The artifacts are observed at certain angles only. I've attached 3 pictures:<br>
<br>
- opacity_1.png shows the model as it looks without transparency<br>
- opacity_09.png shows the model at an angle chosen such that the artifact on the surface is visible.<br>
- opacity_0.9_behind.png shows the same model with transparency rotated around to a view that does not show the artifact<br>
<br>
I am using vtk 8.0 with the OpenGL 2 rendering backend.<br>
<br>
Is this a bug, or am I doing sth wrong?<br>
<br>
Thanks!<span class="HOEnZb"><font color="#888888"><br>
<br>
Marcin<br>
<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Ken Martin PhD<div>Distinguished Engineer<br><span style="font-size:12.8px">Kitware Inc.</span><br></div><div>28 Corporate Drive<br>Clifton Park NY 12065<br><div><br></div><div><span style="font-size:10pt;font-family:Tahoma,sans-serif">This communication,
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