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    $\begingroup$ No, you don't need the lines - you could do all this with shader nodes. But you still want a "just" geometry nodes solution? if yes, one way would be to use a dense grid and use raycast with a specific length and convert that to a curve $\endgroup$
    – Chris
    Commented Oct 25, 2023 at 6:11
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    $\begingroup$ Does this answer your question? How to add golden line to my maps? Maybe the question shouldn't be closed or should be reopened when you clarify why the geometry-nodes tag. $\endgroup$
    – Markus von Broady
    Commented Oct 25, 2023 at 9:50
  • $\begingroup$ Thanks for the suggestions. I want a geonodes only solutions since I need a fully procedural setup for a sliding landscape video. The idea was to set the materials as a last step. I know about the shader setup. With both of your answers I will have a look at the raycast nodes and also see if some math (modular) node on the z-axis will create the same effect as the shader nodes. The golden line is a really nice one! $\endgroup$
    – fonz55
    Commented Oct 25, 2023 at 21:58
  • $\begingroup$ The raycast node is to calculate if rays are casted onto an object and then specify a method. I only have one object (a plane) that I edit, so I do not understand yet how I could use that specific geometry node. I'm now delving into how to get shader/material nodes in a geonodes setup. Help is appreciated. $\endgroup$
    – fonz55
    Commented Oct 26, 2023 at 19:51
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    $\begingroup$ Does this answer your question? blender.stackexchange.com/questions/279201/… $\endgroup$
    – quellenform ♦
    Commented Oct 28, 2023 at 16:10