Mesh Builder working on preview, but not phone

  • Hi 19nsandiso,

    Hmm how are you converting your screen position to the vertex position?

    Are you drawing in screen space or in world space?

    Can you also try logging your touch and/or vertex input on device using: 

    https://lensstudio.snapchat.com/guides/scripting/debugging/

    and seeing if they're the same as what you see in the Preview panel?

    Thanks in advance!

    Jon

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  • I was messing around with it and found out that it has something to due with using multiple mesh builders on the same mesh. I can now get it to show the final shape, but it still isn't showing the line strip on my phone.

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  • Glad to hear you figured out the first part!

    Ah, we are currently fixing an issue related to this. In the meantime, you can use MeshTopology.Lines as a substitute. The only difference is that we have to append an extra index which will be the starting point of the next line. In the case of LineStrip, after the first index you can just add every index twice. E.g.

    builder.topology = MeshTopology.LineStrip;
    builder.appendIndices([
    0,1,2,3
    ]);

    builder.topology = MeshTopology.Lines;
    builder.appendIndices([
    0,1,1,2,2,3
    ]);
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