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What's the most efficient way to draw edges for an object?
By efficient I mean quick in drawing and efficient in rendering.

Example:
Adding red edges to a box. enter image description here

Omar
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    https://blender.stackexchange.com/questions/8300/how-to-solidify-edges and https://blender.stackexchange.com/questions/33871/is-there-really-a-way-to-make-a-true-toon-shader-material-in-cycles/ and https://blender.stackexchange.com/questions/562/how-to-get-silhouette-with-contour-rendering-in-cycles and https://blender.stackexchange.com/questions/3149/how-can-i-render-an-edge-only-mesh-as-solid-lines and https://blender.stackexchange.com/questions/7/how-can-i-start-using-freestyle/20#20 – Duarte Farrajota Ramos Apr 23 '19 at 09:24

1 Answers1

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A possible way to do this is to use the Wireframe modifier. To get the result you want, add 2 materials to your object (the first for the faces and the second for the wire edges). Set the Pass Index of the second material to 1 (or any other number different from 0, which is the default value for any new material):

material

Add the Wireframe modifier to your object, and make sure to unchek Replace Original and to set the correct material index in the Material Offset input:

modifier

The final render will be something like this:

render

Giuseppe G.
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