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Textures on capped faces only displays the color


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I have ran into the issue that capped faces (CAP_START, CAP_END, CAP_ALL) will only display a diffuse color and not a texture http://www.babylonjs-playground.com/#RF9W9#370. The issue seems to persist at least on ExtrudedShapes and Tubes. My theory is that the face UVs aren't properly calculated. Anyone know of a solution or is this a bug?

Kind Regards


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It is all to do with extrusion keeping the number of vertices to a minimum and so shared normals and uvs among vertices. The texture is displayed on the caps however because of the way the uvs are shared you do get a small area (perhaps one pixel worth) shared across the cap. These explain in more detail:




If you are just using cuboids then the MeshBuilder method is preferable to build your box as this creates the boxes with separate faces and hence separate uvs

For example http://www.babylonjs-playground.com/#RF9W9#372

 (Note what is being subtracted from what is swapped in line 28 - can see why this way works in my PG but not why your way round in yours?)

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