[Papervision3D] Y-Up or Z-Up (Re: Positive Y up or down?)

[Francois Balmelle]

I think the convention is more like this:

Y  Z
| /
|/__ X

F

On 1/8/07 1:02 PM, "Carlos Ulloa" <c4rl054321 at gmail.com> wrote:

> Thats a good one,
> 
> When I open a new scene in maya, I get Y-Up. Not sure if this is just a
> default on my machine or it's the way maya users work.
> 
>   Y 
>   |
>  / \ 
> Z   X
> 
> It's not exactly what I like most but I could live with it. This is Y up, X
> right and Z depth out.
> 
> In max I get Z-Up, and as with many other things in max, I don't like it very
> much:
> 
>   Z
>   | Y
>   |/
>    \
>     X
> 
> This should look like Z up, X right and Y depth in.
> 
> Both are right handed systems, IMO the former is more intuitive, and the later
> is more standard in the 3d world.
> 
> But the most intuitive of them all seems to be Y-Up left handed (X right, Y
> up, Z depth in). 
> 
> C4RL05
> // noventaynueve.com <http://noventaynueve.com>
> // papervision3d.org <http://papervision3d.org>
> 
> 
> 
> On 08/01/07, John Grden <neoriley at gmail.com  <mailto:neoriley at gmail.com> >
> wrote:
>> yeah, i was just thinking about that this weekend, I agree.  I think once you
>> get into the world of PV3D, you walk into 3D rules
>> 
>> So, then that begs the discussion of x/y/z - should z be what y is right now?
>> 
>> I'm not a big fan of that personally, but thought hey, why not chat about it
>> 
>> 
>> On 1/8/07, Yaakov Albietz < yalbietz at gmail.com <mailto:yalbietz at gmail.com> >
>> wrote:
>>> making things logical is good. 3d is already hard enough to conceptualize
>>> without messed up conventions.
>>> 
>>> 
>>> On 1/8/07, Ralph Hauwert < r.hauwert at gmail.com <mailto:r.hauwert at gmail.com>
>>> > wrote:
>>>> That'd be great. Although flash has y down, y up is the standard.... r.
>>>> 
>>>> On 1/8/07, Carlos Ulloa <c4rl054321 at gmail.com> wrote:
>>>>> > Hi,
>>>>> >
>>>>> > Currently, Papervision3D treats the X and Y axes in the same way as
>>>>> flash. 
>>>>> > Positive X is right, and positive Y is down.
>>>>> >
>>>>> > I've been thinking about making positive Y up, as it makes more sense
>>>>> > regardless of what flash thinks.
>>>>> >
>>>>> > Any thoughts on this?
>>>>> >
>>>>> > C4RL05
>>>>> > // noventaynueve.com <http://noventaynueve.com>
>>>>> > // papervision3d.org <http://papervision3d.org>
>>>>> >
>>>>> > _______________________________________________
>>>>> > Papervision3D mailing list
>>>>> > Papervision3D at osflash.org
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>>>>> <http://osflash.org/mailman/listinfo/papervision3d_osflash.org>
>>>>> >
>>>>> >
>>>>> >
>>>> 
>>>> 
>>>> --
>>>> Ralph Hauwert 
>>>> FlashCoder
>>>> 
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>>> 
>>> 
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>> 
>> 


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