[Plugin] Bitmap To Mesh
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did something like this some years ago (2005 i think) and used it for quick creation of landscape hills/mountains.
version 2 that was work in progress (and killed) had an openGL viewer to quickly see the output before importing in Sketchup.nice work Thomas
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@unknownuser said:
did something like this some years ago (2005 i think) and used it for quick creation of landscape hills/mountains.
version 2 that was work in progress (and killed) had an openGL viewer to quickly see the output before importing in Sketchup.None of these versions are available anywhere?
OpenGL viewer within SU?
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@unknownuser said:
Yes, it's the beast who makes some crazzy copter and boat
Have you a ratio x*y time elapsed?
No detailed progress indication, no. But I did this very quickly. I'll improve it - with a tool for visually indicating the size of the mesh. Maybe with option to map with the heightmap as a material.
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@unknownuser said:
@tald311 said:
could you generate a DEM with this?
I see now - no you can't. It would be the other way around, you could generate a SketchUp mesh from a DEM. (Though a very large DEM would most likely kill SU.)
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@unknownuser said:
nope. it was on old @Last Sketchup forums and lost.
And v2?@unknownuser said:
yep. in a separate window and it worked pretty well.
C-Extension? How did you generate and interface with this window?
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v2 lost on a hdd crash. yup, via a CExt using http://glew.sourceforge.net/basic.html to create and interact with the openGL window. used only a simple wireframe view for testing but it is possible to create a textured/shader scene as well.
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Genius!
Thomas you have a great fan in me. Many times I thought "glad that I have insisted on paying for our lunch the day we met, dunno when I get the next chance to buy him cookies".
With this release my credit is definitely used up...
...playing for time I extruded a cookie for you, until I get a better ideas
Thanks for this plugin, I bet there are a thousand interesting ways to use it.
cheers
alex
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That's great Alex! 
Btw - you wouldn't happen to be around München next week? The office is going for a trip - Wednesday 'til Sunday... I think.
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@unknownuser said:
v2 lost on a hdd crash. yup, via a CExt using http://glew.sourceforge.net/basic.html to create and interact with the openGL window. used only a simple wireframe view for testing but it is possible to create a textured/shader scene as well.
Sounds like you had all sorts of fun experimental things lost in this HDD crash...
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This is great Thomas.
Do you think it's possible to use the bitmap data to do other things besides generate a point cloud terrain? Could you transfer black lines on a bit map to lines on a face? Could you offset and pushpull based on pixel color data? Just thinking of how to take Silver Shadow's original request to generate a brick wall with depth using a bitmap and make it more polygon friendly. It's great, but using a point cloud terrain to generate several wall textures will bring SU to it's knees.
Could you possibly glean the UVW coordinates of a texture applied to a face and tile the 3D geometry as components over those coordinates?
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@earthmover said:
Could you offset and pushpull based on pixel color data?
It's possible - but not easy - I don't know how.
@earthmover said:
It's great, but using a point cloud terrain to generate several wall textures will bring SU to it's knees.
You could use CleanUp to reduce excess faces/edges for uniform textures.
But in any case - keep the texture files small.@earthmover said:
Could you possibly glean the UVW coordinates of a texture applied to a face and tile the 3D geometry as components over those coordinates?
The texture would have to be BMP - as there is no built in method to get access to the texture data in SU. But it is possible - however, this is also something that turns rather complicated. Though would be an interesting project I can't see myself taking it in this direction - I got at the moment UV Tools, Bezier Surface and Vertex Tools as my main focus (that is not including smaller updates/projects).
I will be updating it with some smaller improvements, but if anyone want to take it further then be my guest. I just threw this together today during a break as I realised that most the code would be reading the image files - which I already had the codes for from Vertex Tool's toolbar system.
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Test with simple displacement map:
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cool stuff! I'm guessing that with some work, you could take a BMP texture applied to an existing mesh and use it to displace the mesh?
Great work Thom!
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you ROCK!!!
where are my old bump maps? time to go play...
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@whaat said:
cool stuff! I'm guessing that with some work, you could take a BMP texture applied to an existing mesh and use it to displace the mesh?
Great work Thom!
I'm looking forward to that...with perhaps a poly count adjustment.
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@whaat said:
cool stuff! I'm guessing that with some work, you could take a BMP texture applied to an existing mesh and use it to displace the mesh?
Possible - but you'd risk an insanely heavy mesh...
@earthmover said:
with perhaps a poly count adjustment.
Well, one could sample less of the image...
If I was better at math I could work out where the contrasts where and use more points from those areas...
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I finally got it to work. I had to the LIB2 thing. It always takes me a little longer. At first i thought it was hanging on me and on some images it did, but I played around with my BMP in phoshop and got the mesh to work. Take a look: see if you can figure it out. Cool plugin. Don't know how I will use it yet but it's cool!
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