[Plugin] Bitmap To Mesh

thomthom

Version 0.2.0b

Made into a tool so the user can easily position the mesh
Moved menu to Draw > Mesh From Bitmap
Keeps aspect ratio of image or Image element
Right click and Image element to generate a mesh. (Does not need to be BMP image - but Draw > Mesh From Bitmap still require BMP imput)
Colour BMP images will convert the RGB value to optical greyscale.
VCB support

thomthom

Test using sample maps from: http://www.mtgrafix.com/programs/terrain.html

Also tried this: http://www.twisteddirt.com/TutorialStuff/dem_02.php Nice terrain shape - but the diffuse texture wasn't so good.

dedmin

thomthom

308px × 1 047px - that would make the mesh ~500-600K faces?

And the issue with that bitmap is that despite it being a greyscale, it's still not a height map - which is why the mesh doesn't come out looking as what the image illustrate.

dedmin

Yes, true. I just wanted to test it - the file is 105 MB

thomthom

Yea - the last texture I tested was 512x512 - heavy mesh. And I'd forgotten that Autosave was on - every 5 mins. x_X

dedmin

dedmin

shura

Why don't I get the Curve Simplification to work?

thomthom

hm... possibly you have a version where it failed on closed loops. I might not have uploaded a corrected version...

david_h

So I notice these wonderful meshes created. How is one controlling the height of the extrusion?

pichuneke

The pieces on the roof (above the pediment) are made with your plugin

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Reconstrucción del Templo de Artemis Agrotera 4 by Egocentrico, on Flickr

Click here to see it in bigger size (1024 px):

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(www.flickr.com)

Ghalko

So I read the posts and then thought nothing of trying a 2048x2048 heightmap produced by L3DT (terrain generating program.) Maybe I should try a bit smaller at first. Then I won't just freeze sketchup and make my patience run out...

I will try with a smaller (much smaller) one first and post the results.

Bryan

solo

@unknownuser said:

So I notice these wonderful meshes created. How is one controlling the height of the extrusion?

Color, the darker the black and brighter the white will produce the greatest crests and troughs.

Ghalko

After letting a 384x384 (meters) heightmap simmer:
Yey!

david_h

@solo said:

Color, the darker the black and brighter the white will produce the greatest crests and troughs.

I get that easy enough. its all based on contrast. . .so One must go into PhoShop and manipulate and lessen those contrasts before putting it into the plugin? Because when I down loaded the scrolly motif lintel thing, I got all kinds of mess. I just couldn't get my model to look like others were doing. . .

I'll keep playing with it.

jeff hammond

David,
Use the scale tool to compress it vertically.

david_h

oh well. . . there's one for the duh thread.

Thx

thomthom

With version 0.2.0 you specify the height your self - either by using the cursor or entering a length in the VCB.

spence

thomthom, this is very cool. I can hardly believe you got this to work. I use this in Eon-Software's Vue and love it, now that it can be done on SU is incredible. VERY NICELY DONE!