Polysurface Displacement Issue

  1. How can I model the displacement texture to run smoothly throughout the polysurface? The texture ends eruptly at the joined edges (poly1.png)
  2. How can I modify the displacement texture to blend smoothly to edge to join surface? (poly2.png)

Hello - you need to blur the edges to white - something like this



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Blurring as Pascal has shown could work, and you could also use feather and erase, or a combination of both.

I don’t know if there are functions to do it completely within Rhino. You could certainly do it in Photoshop or equivalent.