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Inversed faces with an .obj mesh
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Posts: 5


Wed, Feb 13 2013


I try to import an .obj file quite complicated (790.000 faces). Their faces are triangles. But some faces are not visible whereas they are in Blender. In NinevehGL, the orientation of the faces seems inversed. They are visible if we look at the opposite angle where they are supposed to be. I'm not sure to be very clear


Is the problem come from the mesh, the export in obj or NivevehGL? Any idea to resolve this?

Thanks a lot for your answers.
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Posts: 571


Wed, Feb 13 2013

In response to: @syfonseq


This is what you need:

nglGlobalFrontAndCullFace(NGLFrontFaceCW, NGLCullFaceNone);

or this:

nglGlobalFrontAndCullFace(NGLFrontFaceCW, NGLCullFaceFront);

Depends on your goal.
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Posts: 5


Fri, Feb 15 2013

In response to: @dineybomfim

Thank you for your answer Diney.

I tried several combinations of the values for nglGlobalFrontAndCullFace() and the best I had is this:

The faces are black now. With the others values, the faces are still "inversed". Why some faces works well but not these ones?
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Posts: 5


Mon, Feb 25 2013

In response to: @dineybomfim


I'm still stuck with this problem... Can you give me some hints on how to prepare mesh better to be well parsed in Nineveh.gl?

Thank you for your work and your answer
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