Surprisingly I have not been able to reproduce the issue with ParaView
5.2rc2/OpenGL2.
For the Slice filter, the "Triangulate the slice" option is turned ON by
default.
Then ParaView polygonal data representation has a "Triangulate" advanced
option that is turned OFF by default but you could need i
Basically it is OpenGL, in that OpenGL doesn't automatically tessellate
concave polygons. Making VTK always examine every polygon to determine if
it is concave would be a performance hit for everyone, so we leave it up
to developers to use a triangle filter if they need it.
Thanks
Ken
On Tue, Oc
Hi Martin,
i tried the triangle filter in all cases - and yes - i works in all
three cases.
So is this "problem" of concave polygons inside VTK or in OpenGL?
Best regards,
Stefan
I'm not sure if this is your issue, but you might try using a triangle
filter on your data. For OpenGL we
I'm not sure if this is your issue, but you might try using a triangle
filter on your data. For OpenGL we do not guarantee correct rendering of
concave polygons. The triangle filter will convert a concave polygon into
convex triangles which should render correctly.
On Tue, Oct 18, 2016 at 2:20 AM,
Hi,
i found a rendering problem with cuts through polyhedral cells depending
on which rendering backend is used. For example in PV 5.1.2 compiled with
VTK_RENDERING_BACKEND = OpenGL
a cut looks like error.opengl.v5_1_2.png - there is a wrong shading and
some facets coming from the wrong star
