In article <3ac9c404@news.povray.org>, "Rick [Kitty5]" 
<ric### [at] kitty5com> wrote:

> mega pov defiantly does not like shorthand translations and rotations!

I've never had any problem with them, and use them fairly often, but I 
usually reverse things from what you showed:
rotate -z*27
My first thought is that it must be something to do with promoting the 
float value of 27 to a vector before multiplying by z, but the error 
message seems to indicate it messes up before then...and as far as I 
know, that section of the code hasn't been messed with, except for 
adding a ^ operator, and it works in other cases...

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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BTW, what is the ior of oil? And it might be nice to have the light 
coming from the other direction, so the caustics aren't hidden by the 
bottle as much.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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> is rotate z*-27.0 okay? (I've never had a problem with shorthand*)

yes that works fine as far as I know, however

rotate -27.0*z

as outputted by moray is a no no


--
Rick

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> BTW, how long does it take to model such a thing in rhino?

couple of hours, and that's considering I don't know what I am doing :)


--
Rick

Kitty5 WebDesign - http://Kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
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> I like the meniscus on the oil, though maybe the curvature shouldn't stop
so
> suddenly it should gradually become flat.  how about a Povray label on the
> bottle?

it should curve more, but I was banking on the bottles refraction to hide it
:)

label, thought about it, but didn't want to hide the refractions


--
Rick

Kitty5 WebDesign - http://Kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
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> Maybe a version without the thread and a with cork would look more
> adequate for oilve oil, right now it looks a bit like a bottle of medicine

its exactly the same as the 3 year old bottle we have here - don't use it
much, but it was a nice shape to try next after the mug


--
Rick

Kitty5 WebDesign - http://Kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
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> BTW, what is the ior of oil? And it might be nice to have the light
> coming from the other direction, so the caustics aren't hidden by the
> bottle as much.

I have no idea, used 1.33 (water) as it looked nice.

the best caustics are in the bottles shadow, which i think helped to
highligt them, i did quickly try a couple of other lighting arangements, but
liked this best.


--
Rick

Kitty5 WebDesign - http://Kitty5.com
Hi-Impact web site design & database driven e-commerce
TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
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"Rick [Kitty5]" wrote:
> 
> > is rotate z*-27.0 okay? (I've never had a problem with shorthand*)
> 
> yes that works fine as far as I know, however
> 
> rotate -27.0*z
> 
> as outputted by moray is a no no
> 

I tried exactly the same in megapov 0.7 and had no problems, same in 0.6a.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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Christoph Hormann <chr### [at] gmxde> wrote:



> "Rick [Kitty5]" wrote:
>> 
>> > is rotate z*-27.0 okay? (I've never had a problem with shorthand*)
>> 
>> yes that works fine as far as I know, however
>> 
>> rotate -27.0*z
>> 
>> as outputted by moray is a no no
>> 

> I tried exactly the same in megapov 0.7 and had no problems, same in 0.6a.

Hmm, could this be a platform/download thing?  Have you tried redownloading
and installing it?  It could simply be something broke in the transfer.

Geoff

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> > BTW, what is the ior of oil? And it might be nice to have the light
> > coming from the other direction, so the caustics aren't hidden by the
> > bottle as much.
> 
> I have no idea, used 1.33 (water) as it looked nice.

Well, I don't know if this is any help or not, but 1,2,3 Propan-triol 
(also known as Glycerol) has the same IOR at 20 degrees C as borosilicate 
glass.  Unfortunately I don't know any numbers off the top of my head.

OK, scratch that, apparently olive oil has an IOR of 1.47, as according 
to :

http://oldsci.eiu.edu/physics/DDavis/3050/Ch16R&R/Intrnl.html

You know, sometimes I really like Google...

Bye for now,
     Jamie.

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