displacement map (height map) / heightfield from image without good results...

hallo!! i have a problem with a height map - black and white image - that i want to use through grasshopper in exactly the same way as the "heightfield from image" command in rhino works. the reason why i want to use it through grasshopper is to manipulate the z-translation while working in the file. i have attached a screenshot of the rhino result and what i have in grasshopper. i tried many different mesh sizes, grid density and z-multiplication but cant find the mistake? any help would be great!! thanks so much!!!

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Permalink Reply by Mateusz Zwierzycki on April 21, 2011 at 8:48am

you have to open image sampler dialog box. than change intervals - you'll change texture mapping that way

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Permalink Reply by responsive design studio on April 21, 2011 at 12:30pm

thanks but i cant find the intervals. i am using vs 0.8.0004. do you think this is the problem?

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Permalink Reply by Mateusz Zwierzycki on April 21, 2011 at 1:43pm

no it shouldn't be a problem.

just double click the image sampler window, than a popup window will open. There are two intervals to manage with.

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Permalink Reply by responsive design studio on April 25, 2011 at 8:19am

hi mateusz, finally!!! it is working, the problem was that i was connecting points from the mesh to the image sampler, once i used a surface and surface divide to get the uv-points everything was fine. but after trying a new image i got a new problem - a series of surfaces offset in z-direction instead of one surface. dont know if you have any experience with that, but would be very helpful if you could help me out with that??

thanks again!!

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