Equivalent of Heightfield from Image in GH?

Hi all,

I've looked at David's webcast and know how to sample an image for brightness using a grid of points to obtain what could be used as Z data, however I'm not sure what function I should feed that Z data into to yield something like Rhino's heightfield.

I'm guessing GH can produce something more contralable, but I'm new to this and am not sure which function to look for. Does anyone have any ideas or sample GHX files?

Thanks

RMM

Replies to This Discussion

Permalink Reply by to] on March 14, 2011 at 1:03pm

what about move component ;)

Permalink Reply by Andrew Heumann on March 14, 2011 at 1:10pm

give this setup a try

Attachments:

displace_based_on_image.ghx, 359 KB

Permalink Reply by RMM on March 14, 2011 at 1:21pm

Thanks Andrew this works nicely!

Permalink Reply by Paolo Bartoli on November 21, 2013 at 9:51am

Hi Andrew,

I'm intrigued by your GH definition, but still haven't found what I'm looking for.

Both your GH and Rhino's Heightfield function are too weak / slow for my job, since I need to transform a very high resolution image into a 3d mapping texture into Rhino.

Probably Rhino is not the right tool for the job ?

What software is being use - for example - to produce these:

http://www.mutina.it/img/gallerycollection/basrelief/basrelief-10.jpg

http://www.mutina.it/img/gallerycollection/basrelief/basrelief-14.jpg

I have tried with Heightfield, but my PC crashes... too high resolution is needed for this details

Permalink Reply by David Rutten on November 21, 2013 at 9:59am

Rhino doesn't support voxel geometry so if you really want to have shapes (as opposed to just bump/displacement textures) then meshes are your only choice in Rhino. Meshes with several million faces are do-able, but there will be a limit.

Are you using 64-bit or 32-bit Rhino? You could consider switching to 64-bits before you start looking at other software packages.

David Rutten

david@mcneel.com

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