Hello everyone,
I’m having difficulty achieving crisp edges and side surfaces on this displacement texture. The original PNG is high contrast black/white, but the displacement is still coming through jagged. Is there an issue with Rhino reading some other color within the image? Are there other settings I can adjust to achieve a smoother look before extruding a mesh?
Thanks!
Sorry to bump this topic, but does anyone have suggestions? Thanks
The jaggedness is typical with a heightfield (ie displacement), a higher resolution will make the jaggies smaller, but they will not go away.
You would have to trace the bitmap with curves and extrude it you want the sides to be smooth without any jaggies.
Thanks for the input. It seems as though in this example video, he’s able to use image displacement to achieve fairly smooth edges with the gravel texture. Do you know why it’s better in this case?
The gravel texture is not just black and white, there is a gradient from black to white with grey pixels in between, which results in a slope rather than a 90 degree edge. If you look at the hexagon texture later in the video, its it just black and white at the start (similar to your image) and produces 90 degree sides with noticeable jaggies. It is resampled and smoothed later in the video, resulting in sloped edges.
For tracing general images, you can try:
Inkscape (Google it) → Copy and paste image into canvas-> “Path” → “Trace Bitmap”
You can then copy the vectors (delete the underlying image first), paste directly to Rhino (as they are SVG), and then use DupBorder to extract the borders. As you are using Rhino 8, you can just extrude them on the gumball!
Good luck!
That makes sense, thanks again.
Thanks David - Inkscape seems like an awesome program to sync up with Rhino. I’ll give it a try!
Or if want to stay in Rhino, give Dale’s Vectorize a shot. It’s works well and is super handy!
HTH, Jakob
