I am struggling with the displacement mapping on a complex geometry.
As you can see in the screenshot there is this pulling of the texture to one point.
Can someone please show me the way how to get displacement texture evenly on this geometry?
I want to place a leather texture on this design. It should look like this:
Here is the geometry:
geometry-for-displacement-mapping.3dm (5.4 MB)
PLEASE HELP!
Greets
Lukas
That mainly depends on the mapping type you selected.
For this shape is hard to find a single simple mapping, maybe a rotate cube mapping it may hide the seam lines.
The best would be to use the UV Editor and “unwrap” the shape to control how it’s mapped.
Another good option is to use a Custom Map
Thank you very much for your reply!
Using “Unwrapping” and the UV Editor, I’m actually getting pretty good mapping results. See here:
My problem, however, is that the displacement mapping doesn’t seem to use my UV mapping results. So i always end up with the issue that the Displacment Map is pulling to one point on the geometry. Like this:
What am I doing wrong?
Here’s my version with UnWrap:
It works pretty well (apart for the map that’s not tileless).
This are my unwrapping seams:
and this my file:
20261013_geometry-for-displacement-mapping_RG.3dm (8.6 MB)
Disaplcement should use the mapping channel 1 so if the Unwarp was made on the channel 1 it should works.
…but on my computer it doesn’t make the preview.
MAybe @BrianJ could help here?
@skysurfer thank you very much for your support!
I’ve now tried it with your file, but the same problem is happening again. The mapping, which is referenced on Channel 1, looks exactly like it does in your image, but the Displacement (Channel 1) tool isn’t using it. And once again, it’s pulling the texture toward a single point. No matter what I do, the displacement result is always the same. Take a look here:
@BrianJ I really need help please!
Hi @Lukas_Kerschbaum ,
Displacement will use the render mesh of the object and with the topology here your mesh at any settings will always converge to those points. Your options are to remodel perhaps using QuadRemesh > to a SubD or use a bump map instead if you don’t need the actual displaced geometry for fabrication. I gave the model a simpler render mesh setting so it behaves quicker. Then, the file at the top of this post didn’t have custom UVs so I made them with these seams…
geometry-for-displacement-mapping_bj.3dm (10.6 MB)
I hope that helps.
Hi Lukas,
highest quality and yet easiest way is exporting that mesh as STL and bring to bumpmesh.com.
I’m using their ‘fIne leather’ texture here. You need a tilable texture, yours here isn’t. The realtime controls for scale, depth, etc. are awesome.
I hope this helps,
G
if it is visualisation-data only give a try to Rhino 9 / WIP new _patch command.
@gustojunk … bumpmesh.com - nice link - thanks.
kind regards - tom
You are welcome. I know this is the Rhino forum, but Rhino’s tools and workflow for doing this iare just dumb, poorly designed, and even more poorly implemented. So for Rhino users to succeed, they need to know what they should NOT do in Rhino, and instead use a tool that’s actually good and makes their work easier.
Here’s a good explanation of how Bumpmesh works:
G
I also forgot to mention that you can use Bumpmesh’s modern approach to displacement inside Rhino/Grasshopper (but to might require a bit more technical ability (knowing your way aroudn Grasshopper).
More info here:
Thank you guys so much for your help!
I’ll give it a try as soon as I can.
