Creating Scutoid cells in Grasshopper- based on voronoi cell diagram

November 8, 2019, 10:21 am

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I just browsed through this paper and it’s highly complex. And by the look of it this will be impossible to recreate with just grasshopper components. It would need to be programmed with proper Object Oriented design and a good technical understanding of the principals of what the paper is explaining.

My first impression is that probably this patterns are not generated geometrically speaking but rather more on a mathematical level, think of a reaction diffusion system ( just google Karl sims reaction diffusion) those patterns are emergent from a set of rules and are not constructed on geometrical manipulations. Now if you would try to Make a reaction diffusion in 3D it would just be a matter of layering the values over time and then visualizing the geometry with a marching cubes algorithm. The Beauty about natural phenomena is how complexity emerges from simple rules of interaction.

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Mesh a Complex Terrain - URGENT

November 8, 2019, 10:24 am

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1 minute calculation on my old workstation:

image.jpg1518×909 458 KB

But there are some issues with the curves though.
I only used the curves on the IN-BOX layer, and it uses Z as up (It uses the cores from MeshPatch)

image.jpg1693×1033 1.09 MB

Finding corners of reference text on Rhino

November 8, 2019, 10:28 am

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I put only a little more effort into trying to interpret rotation angle consistently before realizing that we don’t really need the angle at all, just the minimal bounding box. This simplification, along with checking only ±45 degrees instead of ±90 degrees, might have consequences later such as reversed UV dimensions? Would be helpful for you to post some examples internalized as GH please, rather than R6 .3dm file.

The ‘precision’ slider here has the effect of increasing resolution beyond the default one degree increments. A value of two will be half a degree, three will be 1/3rd degree, ten will be 1/10th degree of precision.

rotate_bbox_2019Nov8a.png1235×436 26.2 KB

rotate_bbox_2019Nov8a.gh (14.5 KB)

It can be clustered this way:

rotate_bbox_2019Nov8b2.png867×204 13.2 KB

rotate_bbox_2019Nov8b.gh (12.5 KB) (DEPRECATED! see below)

P.S. OOPS! Had to fix two issues with the cluster:

1. Don’t assume ‘World XZ’ as the plane of rotation, use Plane Fit (PlFit) instead.
2. Handle multiple ‘G’ inputs by using Shift Paths (PShift) instead of flatten.

rotate_bbox_2019Nov8c2.png947×218 16.3 KB

rotate_bbox_2019Nov8c.png1181×430 34.3 KB

rotate_bbox_2019Nov8c.gh (17.8 KB)

Note that this whole idea assumes a “Flat Box”. With a more generalized 3D geometry, it is likely to fail at finding the minimal bounding box.

Reparametrize Grid or Surface ? (Paneling Tools)

November 8, 2019, 10:29 am

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149 157 227
check out these pages on AAD book. Use the subsrf component with the divide domain.

Enjoy!

Cycles for Rhino: Caustics?

November 8, 2019, 10:34 am

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Currently not, but there are some patches out there that add some sort of caustics.

Ryzen or Intel?

November 8, 2019, 10:36 am

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That said, a processor with as many cores as possible is also an acceptable approach.

I am currently working on bringing in the latest version of Cycles for Raytraced into Rhino - it should give Embree support, meaning you should get better Raytraced performance on the CPU. And the nice part of rendering on the CPU is that you generally have much more RAM to work with than on a GPU.

Further untested still, but CPU+GPU combo should work also better in the future.

SuperSelect Plugin, can't find it anymore

November 8, 2019, 10:37 am

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thanks!

Bongo animation with VRay

November 8, 2019, 10:40 am

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Thanks for the reply, Luc. I am running the latest Rhino 6 and V-Ray, same as what you have.
I am getting black screens whenever I use the normal (non-interactive) renderer, no matter what view I select from the batch render, Bongo animation exporter, or even just rendering from V-ray.

I back-saved to Rhino 5 and installed the latest Bongo and V-Ray on that, and was able to get all of my frames to export correctly through Bongo’s animation exporter and selecting V-Ray as the renderer.

I will try starting from scratch in Rhino 6 to try to determine if I messed up some settings in the document first, or if it’s something else.

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Mesh a Complex Terrain - URGENT

November 8, 2019, 10:41 am

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Wow.

True. The curves do have some errors but yet in some areas the plugin misreads (because of the cores from MeshPatch?). I tried to be very diligent with this and today when programming something in GrassHopper (based on this video[one of many]: https://www.youtube.com/watch?v=aLHT21aERms ) an error came up when executing it (“One point is null.”) so I analised all the countour lines, (+400) and I edited some which I thought it could help these plugins read better and faster.

In one minute thats awesome but not perfect.

Once again sorry for my ignorance:

1. Can a good “workstation” easily edit that object/mesh in the picture you sent? Since its very close to a 10/10 result.
2. Can your plugin read these roads and also extrude them?
3. How? (Optional answer) [amazed]
4. Do you need to separate the contours from the roads by layers? Does it read buildings?

I am also sorry for the questionary. I am just trying to be sure that I don’t miss nothing when i run it.

it looks awesome and impressive for the amount of time you did it.

Thank you for your attention @Holo and for these images. I will for sure try your plugin.

Cheers

Texture icons disappeared after a critical error

November 8, 2019, 10:46 am

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I can not bring to a working state. Reinstalling did not help.

Generating solid volume from 3 enclosing surfaces... fast?

November 8, 2019, 10:48 am

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Hello,

I have something like an open generalized cylinder surface that is intersected near the top and bottom by 2 other approximately perpendicular surfaces. I know I could find the intersection curves, trim each surfaces, join the interesting parts, etc… But my goal is to automate this process and use it in a Python script!

My question is the following:
Does Rhino already have a high level tool/command/script that I could use to get the solid volume enclosed by these 3 surfaces (there is only one such volume in my case).

P.S.: The process would be like the construction of the mouse volume shown in the SMLIB documentation page (just above The Offset Operator section)
http://www.smlib.com/smlib.html

Ring! Help!

November 8, 2019, 10:51 am

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Generating solid volume from 3 enclosing surfaces... fast?

November 8, 2019, 10:56 am

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Hello - see CreateSolid

-Pascal

Rhino3dmIO missing some methods for Quaternion

November 8, 2019, 10:56 am

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Hello,
I am developping some project that was first developped using RhinCommon ant now I try to replace it by Rhino3dmIO. Could these methods be added in Rhino3dmIO ?
‘Quaternion’ does not contain a definition for ‘Unitize’
‘Quaternion’ does not contain a definition for ‘DistanceTo’
‘Quaternion’ does not contain a definition for ‘GetRotation’

Meanwhile thanks for these wonderful libraries. They are very useful for my job and my homework.

Flow mesh along mesh

November 8, 2019, 11:01 am

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Hello - is the attached something like what you want? It is flowed (`FlowAlongSrf’, base and target surfaces are on their own, off, layers). Note, I chose a smoother part of the ‘pomme’ to map to, on the ‘back’ side.

Pomme bouche_PG.3dm (872.4 KB)

-Pascal

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Rhino Rendered View Problem

November 8, 2019, 11:10 am

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Hey Pascal, I tried that and it still doesn’t work

Select surfaces of a plane

November 8, 2019, 11:13 am

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Good idea Rolf! thank you
But I still couldn’t figure out how to make it work

image.png1512×763 96.4 KB

Rhino Rendered View Problem

November 8, 2019, 11:18 am

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Hello - another thing to try is to force the hybrid system to always use the nVidia card - that would be a setting in the nVidia control panel, maybe ‘High performance’ - something like that.

-Pascal

Texture icons disappeared after a critical error

November 8, 2019, 11:25 am

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Hello - can you please run the SystemInfo command in Rhino and post the results?

-Pascal

Rhino6 surface display issue

November 8, 2019, 11:36 am

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Hi Lei - I’m not having problems with the file that you posted with backfaces set to pink:

image.png694×427 45.2 KB

It looks like you are running a cracked version of Rhino and while that probably isn’t what is causing this, you might as well try with a legitimate copy.

You are running Rhino 6.13 - please update to the current 6.19. Also, your display drivers are getting somewhat old - Driver Date: 11-29-2018 - please try updating these as well.
-wim