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Old 03-07-2018, 01:41 PM   #31
gameguy
 
Join Date: Mar 2018
Default Re: Interest in 3d printable track pieces for 'classic'?

Nice initiative!

I took a look on github and I see many empty png files( like 2x2-4x4Turn90Part2.png ). What is the purpose of those files?

It would be nice if you could add a rendered preview for each tile and push it in github repository.
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Old 03-08-2018, 11:22 AM   #32
Melkhior
 
Join Date: Mar 2006
Location: France
Default Re: Interest in 3d printable track pieces for 'classic'?

Quote:
Originally Posted by gameguy View Post
I took a look on github and I see many empty png files( like 2x2-4x4Turn90Part2.png ). What is the purpose of those files?
They're not empty - but it seems PNG with a zero-ed Alpha channel looks empty in GitHub and most other viewing tools :-( You can see the content if you open the file in an editor.

They are mostly procedurally generated height-map - used in OpenSCAD to generate the 3D surface of the tiles.

Quote:
It would be nice if you could add a rendered preview for each tile and push it in github repository.
They should be in a subdirectory "previews/" now :-)

Last edited by Melkhior; 03-08-2018 at 11:25 AM.
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Old 03-08-2018, 12:00 PM   #33
Parody
 
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Default Re: Interest in 3d printable track pieces for 'classic'?

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Originally Posted by Melkhior View Post
They're not empty - but it seems PNG with a zero-ed Alpha channel looks empty in GitHub and most other viewing tools :-(
They should; the PNG is telling the viewer that the pixels are completely transparent. If the tool(s) involved don't use the alpha channel they shouldn't write one; if a particular file doesn't need transparency the tool should write "fully opaque". (Sounds like a minor bug in the tool. :(

On the plus side, now I know a way to get rid of alpha channels in PNGs.
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Old 04-04-2018, 11:30 AM   #34
Melkhior
 
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Default Re: Interest in 3d printable track pieces for 'classic'?

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Originally Posted by Parody View Post
They should; the PNG is telling the viewer that the pixels are completely transparent.
I would have thought 0 meant "fully opaque" ?

Anyway - they are intermediate files, not really meant to be looked at. Still, I should fix those home-brewed tools at some point :-/

In the meantime, Another picture of a few pieces, including a Start/Finish banner and a brick wall on the side.
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Old 04-04-2018, 07:45 PM   #35
Parody
 
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Default Re: Interest in 3d printable track pieces for 'classic'?

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Originally Posted by Melkhior View Post
I would have thought 0 meant "fully opaque"?
When in doubt, read the spec: RFC 2083, Section 2.4. :)
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Old 04-07-2018, 03:27 AM   #36
Melkhior
 
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Default Re: Interest in 3d printable track pieces for 'classic'?

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When in doubt, read the spec: RFC 2083, Section 2.4. :)
As they say - "assumptions are the mother of all f*ck-ups" :-/

Anyway, it seems fixed now. I've regenerated the files with an opaque channel in the heightmap, so one can see the heightmap in github.

And now I can even use a 3D printed turnkey.

Still need the 3D-printable vehicles at classic size though.
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Old 04-08-2018, 03:09 PM   #37
ammulder
 
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Default Re: Interest in 3d printable track pieces for 'classic'?

I've added more track tiles to DungeonPrint. Still plenty to go, but a better selection in any case.

http://studio.dungeonprint.com/automotive
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