Powerful Computer Required! [Urgent]
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Use Blender
Subdivide a plane
Use the height map as displacement modifier texture
Apply modifier
Then reduce mesh as needed and export.
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I could try
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@rich o brien said:
Use Blender
Subdivide a plane
Use the height map as displacement modifier texture
Apply modifier
Then reduce mesh as needed and export.
But I don't have blender... And have never used it
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It's free. And the clock is ticking.
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@cotty said:
Maybe Bitmap to mesh is not the route of choice here.
Thomthoms note:
"Note! Generates two triangles per pixel!
250x250 pixel image generates a mesh of ~125K faces! ( 250 * 250 * 2 )"for your first image: 1360x1360x2 = 3.699.200 faces!
Can you share those images here?
It is the only way I can generate the terrain from this and there are only 7 different colours/ levels, so once generated I could reduce the mesh significantly using cleanup3 (merge faces & remove stray edges). I may then smooth it using artisan or similar.
Or perhaps the "Mesh from bitmap" might be better than the height map method, that was I could clean up then select by material and move up or down to create the levels.
(I have tried using illustrator to live trace and then extrude but the edges never align properly, I tried attaching the example as far as I got with that method, but it'll be even more power hungry in the end, and the file is 10mb)
Heres the image anyway.
When milled out I will be layering up 5 different woods with different shades so it will stand out for each layer.
Here's also an example of the outcome - except this was a contour model using plywood (different site).
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based off your displacement map Blender can do this...
...and you can control the density/height
but a collada export of 500k tris result in a 75mb file. importing that into SketchUp you probably need to go make coffee, hoover house, cut lawn etc....
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127 mb
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or maybe run CleanUp first?
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Actually it did it quite fast and it is not that much of a deal. Just an i7 3770, others than processor speed is not important with sketchup. The eaten memory is just 3.5 gb.
I am trying to clean it up by bits to not draw it into the not responding mode.Question: Why don't use the cam program that creates the code for the cnc? Usually these programs have the ability to create mesh from bitmaps.
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@ely862me said:
Actually it did it quite fast and it is not that much of a deal. Just an i7 3770, others than processor speed is not important with sketchup. The eaten memory is just 3.5 gb.
I am trying to clean it up by bits to not draw it into the not responding mode.Question: Why don't use the cam program that creates the code for the cnc? Usually these programs have the ability to create mesh from bitmaps.
Excellent,
Really? I spoke to them any they said they couldn't so been trying all day to do it this way instead.
edit: Plus I need this anyway for the master model for render to be fair.
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https://www.dropbox.com/s/yuqj2r3jer4mej8/bmp%20a.rar?dl=0 still over 70mb
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That looks better because the heights are not as divided as mine.
Anyway, I believe that the image itself is a bit over exaggerated in details for the job requested. Perhaps some smooth transitions, like a wavy terrain would be more like it.
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Many thanks for the help everyone, its looking fantastic, I think ely862me's version has worked the best as it is the healthiest and has the most detail.
I'll be sure to post final photographs up when I can!
ely862me: It would be good if you could explain your workflow? Just that there seems to be a noise where I would expect flat surfaces, I actually quite like it but just wondered if you did it in a more powerful program like the suggested blender? or wether it is in fact from sketchup?
Many thanks again, excellent help from the guru's!
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You're welcome!
Which one are you referring to? The first or this last one ?
The first one is achieved with Bitmap to mesh plugin and cleaned up. Perhaps the height which I chose made it that way. -
attached is a zipped .blend file. you can see in the animated .gif below the setting to change to affect the height...
...when happy click the apply button on all 3 modifiers to make the actual mesh and export to .dae
this will tax your system less than SketchUp will and give you more control.
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Appetizing birthday cake!
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[edg3d:3t8cla6v]SoFlZ8yn4gXn6nB[/edg3d:3t8cla6v]
polycrunching the mesh can get it as low as <3mb...
...an interesting challenge for sure. thanks for sharing it!
looking forward to final output.
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My computer could handle it, but I couldn't. Most of what you guys are talking about is WAY over my head
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