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The flying keyring image on http://www.povray.org
is currrently is in jpg format and therefore has non-transparent background,
and it's frame doesn't look nice when flying.
Isn't it better to use gif with transparent bg?
Gleb
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Gleb <gk1### [at] soton acuk> wrote:
> Isn't it better to use gif with transparent bg?
Better PNG with alpha channel. This way you get nice antialiasing to the
background.
--
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -
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> Better PNG with alpha channel. This way you get nice antialiasing to the
> background.
Well, theoretically at least. IE wouldn't like it, it'd end up looking
uglier to most people.
Plus, despite PNG's great compression, it would probably be slower than a
JPG. A gif would certainly be slower. I always figured it wasn't that
important.
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
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Slime wrote:
>> Better PNG with alpha channel. This way you get nice antialiasing to the
>>background.
>>
>
>
> Well, theoretically at least. IE wouldn't like it, it'd end up looking
> uglier to most people.
Use Netscape. It doesn't do the animation. Problem solved! :-)
/Ib
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> Plus, despite PNG's great compression, it would probably be slower than a
> JPG. A gif would certainly be slower.
Do you mean bigger?
Gleb
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Both. In most cases, bigger file size means slower download ;-}
"Gleb" <gk1### [at] sotonacuk> wrote in message news:3c932070@news.povray.org...
> > Plus, despite PNG's great compression, it would probably be slower than
a
> > JPG. A gif would certainly be slower.
> Do you mean bigger?
>
> Gleb
>
>
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Gleb wrote:
> > Plus, despite PNG's great compression, it would probably be slower
> > than a JPG. A gif would certainly be slower.
> Do you mean bigger?
Actually, a gif can be smaller than a JPG. If you have, say, a line-
art image, or one which uses few colours in large areas, a gif will
be smaller.
- Tim Cook
http://empyrean.scifi-fantasy.com
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"Mahalis" <don### [at] fakeycom> wrote in message
news:3c935cbf$1@news.povray.org...
> Both. In most cases, bigger file size means slower download ;-}
An example gif with transparent bg posted to p.b.i
This draft has 32 colours only, but is 8.5K vs 14K in original jpg
If one consider that quality is poor than it's possible to increase colours,
etc.
Gleb
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Timothy R. Cook <tim### [at] scifi-fantasycom> wrote:
> Actually, a gif can be smaller than a JPG. If you have, say, a line-
> art image, or one which uses few colours in large areas, a gif will
> be smaller.
But a PNG will be generally slightly smaller than the equivalent GIF
(because PNG has a better compression algorithm).
--
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}// - Warp -
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> But a PNG will be generally slightly smaller than the equivalent GIF
> (because PNG has a better compression algorithm).
Ouch ...
You know, there does not exists something like the "best" compression ...
There can't be an algorithm that compresses better in ALL cases than any other
algorithm you choose ...
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