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I have rotate the uv as well in the mapping. enter image description here

I want to have a straight line following the arrow shape

enter image description here

Any extra node or how can i rotate to fix. Any suggestion. Thanks

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  • $\begingroup$ Can't you add in another plane on top of the arrow and give it a shrinkwrap modifier to it and then you can extrude it to follow the arrow ?You can then give the material to it $\endgroup$
    – Nxdhin2005
    Jul 19 '20 at 5:07
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Unfortunately the rim of a Solidified mesh doesn't exist in time to be UV mapped. It has no UV map at all; any texture can only be projected through the solid from the faces that are UV mapped before solidifying, which gives no opportunity to change the colour on the way through.

You have some options:

  1. Apply the Solidify modifier, and UV unwrap the whole arrow, with its (now real) rim.
  2. Solidify the other way, so the wide sides are now the Solidify-created rim. Then you could UV map the thin sides of the rectangular profile, before solidifying.
  3. Create a copy of the arrow after solidifying, but before any other modifier, unwrap the copy, and use a Data Transfer modifier to pick up the UV's from the copy, on the way down the original arrow's stack.

That's the option that's illustrated here (the copy is not rendered):

enter image description here

It would all depend on how non-destructive you need to be.. which modifiers you might need to leave yourself free to adjust.

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