Powerful Computer Required! [Urgent]
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EDIT: COMPLETED, THANKS TO EVERYONE WHO HAS HELPED
Hi everyone,
I need to ask a really big favour of anyone who has a really powerful computer as mines from 2008 and I am being quoted 9 hours to generate a detailed terrain in which I can use to create a 3D CNC Milled wood model (around 1200mm diameter). The deadline is coming up and I really can't wait for so long.
If you have one and are willing to help please post here or PM me, I can email over the image files required.
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I have a png image of a landscape which I have made into a displacement map, this image should be 1200mm square.
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Using ThomThom's plugin "Bitmap to Mesh" available in the extension warehouse, (forum http://sketchucation.com/forums/viewtopic.php?t=31339.
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Select the image, right click and select "Mesh from heightmap".
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This should now be generating the flat terrain and provide an eta in the bottom left of your screen.
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You could then run Cleanup3 and set it to merge faces (UNCHECK ignore materials), and then enable erase stray edges. then zip the file to send to me.
1360 x 1360 pixels (High Definition)
Is anyone available to help me with this please?
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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?
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Once CleanUp has been run on the flat mesh, merging faces and erasing stray edges, the model should be rather small, its just getting there first!
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Amazing idea! Sadly no power pc for you here...
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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
INTEL CORE I7 4790 3.6GHZ LGA1150 CPU
KINGSTON 16GB (2 X 8GB) DDR3 1600 MEMORY
MSI B85M-G42 MOTHERBOARD
KINGSTON 120GB SSD SOLID STATE HARD DRIVE
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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.
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