[Paraview] Incorrect shading results in ParaViewWeb Local(VGL) mode

Junjie Xue bitxue at foxmail.com
Mon Jan 18 11:29:48 EST 2016


Managed to display the data file in 'deprecated' mode. the black area 
now display as transparency, looks like holes on the model.

在 2016/1/19 0:11, Sebastien Jourdain 写道:
> From the source tree it will be in
>
> {VTK-src}/Web/JavaScript/Lib/vtkweb.viewport.webgl.js
>
> Which will be gathered inside
>
> {www}/lib/core/vtk-web-all.js
>
> On Mon, Jan 18, 2016 at 9:01 AM, Junjie Xue <bitxue at foxmail.com 
> <mailto:bitxue at foxmail.com>> wrote:
>
>     Hi, Sebastien,
>
>     Thanks for your quick reply!
>
>     I need to modify the frustum parameter(modify the 'far' value from
>     1e4 t 1e5) to test the model in 'deprecated' mode. The code of
>     'local(cgl)' mode is located in '/.../ext/core/vgl.min.js'. Do you
>     know where is the WebGL code of 'deprecated' mode?
>
>     Best,
>     Junjie
>
>     在 2016/1/18 23:36, Sebastien Jourdain 写道:
>>     Did you try the other WebGL option that is marked 'deprecated' ?
>>
>>     On Mon, Jan 18, 2016 at 1:12 AM, Xue Junjie <bitxue at foxmail.com
>>     <mailto:bitxue at foxmail.com>> wrote:
>>
>>         It seems the Local(VGL) rendering mode in ParaViewWeb has
>>         issues with some model files.
>>
>>         How to reproduce the issue:
>>         open the visualiser, selecte the data file: 'can.ext2'.
>>         Under 'Remote mode': all is ok, no issue
>>         Under 'Local(VGL) mode': if the model is zoomed out to a
>>         certain distance, some faces on the model is shaded black.
>>
>>         I guees this is caused by the rendering mechanism differences
>>         between Paraview and ParaViewWeb . This issue exists in both
>>         paraview4.3 & 4.4, anyone knows how to solve it? or any other
>>         solutions the get correct rendering results in Local(VGL)
>>         mode? Thanks in advance!
>>
>>         Junjie Xue
>>         Beihang University
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