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I'm creating a 3D-model of a traffic sign for a simulation software. The problem is, that within the simulation I get some strange texture errors:

demo

From the simulation-tool-support I got this response:

Your faces seem to be coplanar and double-sided. Make sure they have proper single-side modeling and that the normals point into the right direction.

In the screenshot you can see, that the normals look right, and the faces are not two sided:

demo2

How can I create a material, which is only visible from one side? The model is exported using the obj format and is then converted to flt using osgconv.

johni07
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    This looks like Z-fighting. Make sure there aren't any mesh faces in the same spot as textured are before exporting. See https://blender.stackexchange.com/questions/5441/cause-of-black-artifacts-in-render – Mr Zak Jul 11 '18 at 10:23
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    Material properties are not exported, this is a modelling issue, the send to be overlapping faces in that area – Duarte Farrajota Ramos Jul 11 '18 at 12:29

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