Which components can model such a texture?

Which components can model such a wavy texture on top of these Zaha Hadid vases?

Replies to This Discussion

Permalink Reply by peter fotiadis on May 26, 2015 at 12:42am

Hmm ... it's the second time that I've seen a "similar" puzzle.

In general - and roughly speaking - I would suggest to "distort" a nurbs via control points ... a task NOT for a novice by any means, nor something that it can been described by "listing" components (BTW: you can divide in U/V the distorted nurbs if "segments" are in demand).

I have code to do that but it's a quite complex script in C# (no GH components at all) for internal use:

It works (a) by rebuilding a nurbs by a user controllable amount of U/V points then (b) creates any imaginable SUBSET of control points ("shifting" them in U/V and/or "culling" them and/or ... whatever) and then (c) it modifies (using the nurbs normals) these VS any collection of attractors (in push/pull mode) and/or using a "global" distortion mode and/or random stuff and/or ... some other options.

Then it "combines" the modified points with the rest and does the new nurbs.

see 2 possible variations (out of a zillion) as regards "shifting" in U/V (using VERY LOW U/V "resolution" for speed).

Attachments:

Nurbs_control_Pts_test_34R.wmv, 644 KB
Nurbs_control_Pts_Test_12B.wmv, 730 KB

Permalink Reply by Elisei Kulikovsky on May 26, 2015 at 11:24am

Thank you.

But is it possible to rebuild your algorithm using regular GH components (or may be add-ons)?

Permalink Reply by peter fotiadis on May 26, 2015 at 12:26pm

Theoretically maybe but it could require a lot of work and a rather very big collection of components (and it's not "algorithm" ... it's about 550 lines of code that do the job).

Permalink Reply by Shridhar Mamidalaa on May 26, 2015 at 2:42am

Here is some Direction .

Attachments:

zaha.gh, 18 KB

Permalink Reply by Elisei Kulikovsky on May 26, 2015 at 11:17am

Thank you!

Permalink Reply by Kim hauer on May 26, 2015 at 12:21pm

Hi Shridhar:

Cool, Interesting script!. I have 2 questions.

1. How could you or I randomize the "wave pattern"
so that the pattern would look like randomized waves, such as a water pool surface?

2. The Script does not behave well on a curved surface or cylinder, how can I improve that?

TIA!

Permalink Reply by Shridhar Mamidalaa on May 26, 2015 at 1:03pm

If its random waves u r trying to do then u should use "Perlin noise" plugin or generate through Graph mapper and moving points u should use Vector not as "z" but as "surface normals" which is output from "surface divide" component.

Permalink Reply by Shridhar Mamidalaa on May 26, 2015 at 1:43pm

I m guess ur talking about something like this.

I have set move point direction to surface normals which should be applicable to Double curvature surfaces too..

Attachments:

srfdef.gh, 10 KB

Permalink Reply by Kim hauer on May 26, 2015 at 8:25pm

Thanks! Shridhar, I was unaware "purlin" was a noise mapper

with respect to my 2nd question. I get some odd results wrapping your formula around a Brep instead of your original Surface. Are the UV segments somehow interfering?

Attachments: