Dear Community,
i used to shrinkwrap a ring and it seems the surface is not smooth. I dont remember to see this effect in former times when i used shrinkwrap. Is there a way to fix this?
you would have to post a file for other to understand
Sorry, the rhino file is too big to upload
shrinkwrap is calculated off the rendermesh not the actual surfaces.
crank up your rendermesh settings in tools>options>mesh and run it again
I talk about this issue in this video-
and also in this one-
Thank you very much. It worked!
if you want to deep dive on mesh settings, here is an older video on the advanced mesh settings and what they do. It’s targeted at actual meshes for printing, but the info is the same for render meshes.
Thank you, i ll check
Trying to change the ``minimum initial grid quads´´ did not affect the smoothness
maximum edge length is the biggest factor that determines the rendermesh quality.
I sent only two settings when I do meshes for my own stuff.
maximum edge to surface distance- set this to the same value as your file absolute tolerance.
maximum edge length- use this to determine how many triangles are in the mesh. Smaller values = more triangles= smoother parts, but will perform slower if that is a consideration.
use the preview button to check your changes and make sure you re not setting it something that takes you to crazy town. (like 2mm polys…)
for what you are doing, 500k polys should be more than plenty to get a good shrinkwrap.
Thank you! Now its really smooth. I set the maximum-edge-length to the same value like my target-edge-length for shrink wrap. Then i used reduce-mesh to bring it down to 300k. Supersmooth!
If i close and open Rhino8 again, the render-mesh-quality-preset is set to jagged and faster. Is there a way to have my saved preset loaded automatically whenever i open Rhino?
setting the render-mesh-parameters might conflict with display-performance as it is global / per file setting. (based on the used template)
I recommend (an alternative workflow) to explicit generate a Mesh - only for the objects you want to shrinkwrap:
_meshthe polysurface(s) → parameters are important - see below.- move the mesh(es) to their own layer - so you can turn it on /off and avoid snapping or display issues. (the meshes will interfere with the rendermeshes of the polysurfaces)
- now shrinkwrap (best - on a new layer)
meshing - Parameters
are the key to solve your problem and prepare nice data for shrinkwrap
for the parameters see detailed info in help and below
Maximum distance, edge to surface
will define the overall precision - and i would claim this is the most important parameter.
note that some paramters have quadratic influence on the data.
changing maximum edge length from 1 to 0.1 will give you factor 100 of points / faces / File size.
minimum edge length
is nice to limit the resolution and avoid super dense areas.
Maximum aspect ratio is quite nice to avoid super narrow triangles
set all parameters to 0 will turn their influence of - and will allow you to see the effects of each parameter - playing around with it.
kind regards - tom
(did Some EDITS above, adding the correct link and hint for working with layers, thanks for the :
: @theoutside and @Holo )
that is a good process. ^^
keeps everything file specific