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Wireframe Render
Wireframe Render
Eversio, added 2006-05-15 21:26:44 UTC 61,514 views  Rating:
(7 ratings)
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Wireframe Rendering in Maya

This tutorial will show you how to create a shader that will render a wireframe of your model and not render the backfacing wireframes.  Before following the steps below, unwrap your mesh.

1.  Take a snapshot of your UVs.
2.  Create a shader node of your choice (I used a lambert).
3.  Create a Condition node (under General Utilities).
4.  Create a Sampler Info node (under General Utilities).
5.  Create a 2D File Texture node and load your UV snapshot as the file.
6.  Create a Ramp node, and delete all colors but one.
7.  Change the remaining ramp color to either black or white (you may need to change this later).
8.  Connect the outColor attribute of the UV file texture to the colorIfTrue attribute of the Condition node.
9.  Connect the outcolor attribute of the Ramp node to the colorIfFalse attribute of the Condition node.
10.  Connect the flippedNormal attribute of the Sampler Info node to the firstTerm attribute of the Condition node.
11.  Connect the outColor attribute of the Condition node to the transparency attribute of the shader node.

You may need to use a Reverse node between the UV file texture and the Condition node to make it work correctly.  Reverse nodes are pretty simple:  they have an input and an output.  All they do is invert the colors of a color node.  For the same reason, you may need to change the ramp node from white to black, or vice-a-versa.

Also, you may need to attach the outColor of the UV file texture to the colorIfFalse attribute of the Condition node, INSTEAD of the colorIfTrue attribute (in step 8).

You're done!