Le_Forgeron <jgr### [at] freefr> wrote:
> I made a custom extension to import & export STL (as well as GTS).
> As SDL is only able to handle text (and not binary file), it was not an
I saw some search results regarding hgpovray38, but I didn't really "get" it.
Don't we have the ability to read/write binary files in SDL?
I was searching for a way to write GrADS data, and finally reminded myself that
it was possible.
uint8 - unsigned byte (0..255)
sint8 - signed byte (-128..127)
uint16be, uint16le - unsigned 16-bit word (0..65535)
sint16be, sint16le - signed 16-bit word (-32768..32767)
sint32be, sint32le - signed 32-bit word (-2^31..2^31-1)
> Problem with STL: there is 2 opposite specifications for colour, so I
> just dropped that part too, only load & save the shape.
> OBJ specification is text, but not made only of triangle (you can have 4
> points faces).
Well that's "easy enough" to grapple with - just use corners 1, 2 & 3, and 3, 4,
& 1 to make 2 separate triangles.
> I also made an extension to be able to read back the data of a mesh, it
> could be used to save it as mesh2 (but really, STL is faster if you can
> cope with the constraint of being in the positive corner cube)
I got the impression from the documentation that mesh2 was "better" - so why is
I'm impressed that you coded something up for mesh2 - I was mulling over how to
do that, and it seemed like a lot of record-keeping to know which triangles
were which and what ones shared vertices....
> Whatever, I use *meshlab* to convert between these formats (and perform
> also other operations, including preview).
Yes, I think I stumbled across a link to meshlab. I'll try to install that some
time soon, as it a nice program for viewing and fixing meshes.
> Also, *makehuman* is a nice way to get mesh of human bodies if you
> intend to have a set of Greek statues.
Hmmm. IIRC that project was abandoned some time ago - I'll look and see if I
can find the files for that.
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