generative modeling for Rhino
I'm just learning to use grasshopper (recently watched the webinar), and I'd like to know how to change the origin of a bitmap sampler that is reading points from a Square Grid component. I am able to change the plane of the Square Grid, however the Image sampler seems to stay at (0,0,0) World.
What I'm hoping to accomplish is a perforated skin on a building using a black and white bit map to vary the perforations. Even when I set the C-plane to the face of my building and orient the Square Grid to it, the image seems to stay put (ie: and no longer influence the circle output)
What is the best way to accomplish this?
Not sure where or why you're going astray, so here is an example. (and some tips)
2) Reparameterise the Surface/Face you want to divide up
3) Use the UV of the SDivide component. That way it doesn't matter where the object is in the world it will always reference the image in relative terms.
4) use the default 0 to 1 domain of the image sample (hence reparameterising the Original Surface)
Note: If you are not going to reparameterise the referenced surface then make sure your image sampler domain is the same as the surface's.
I always seem to have a problem with the image sampler. I use surface frames instead of divide, then i set circles to each frame to get the circles to follow the surface, then i project the circles to the surface to make sure they are definitely warped onto he surface. then when i want to remove the circles from the surface all my intersection tools seem to always output me still a solid surface. Do you know why?
p.s. i use grey scale images to determine circle radius's, unlike your example where you literally have circles as the image.But you just taught me a new way to use image sample to remove list items. Awesome. Thanks.
Im trying to get this effect
i try to do something similiar.
however, i would like to know how to get an image from geometry color?
Incidentally, where is danny?