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Problem with png transparency

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  #1  
Old July 20th, 2001, 06:24 PM
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Question Problem with png transparency
Hey Folks!
Check this out : http://www.kieselkarikaturen.de/2001/png_test.htm

Why does the transparency not work?
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  #2  
Old July 23rd, 2001, 03:59 AM
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What software are you using to create the PNG?
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Old July 26th, 2001, 06:21 PM
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From URL

Non-transparent PNGs are displayed correctly in Netscape 4.04 and later, and in Internet Explorer 4.0b1 and later. Few current browsers support transparent PNGs well, or even at all
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Old July 26th, 2001, 06:29 PM
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i use photoshop 6 to create the pngs (the areas which are meant to be transparent show up as grey)
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Old July 27th, 2001, 09:09 AM
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the only way I could get a transparent PNG to show up properly was by saving it as 8-bit rather than 24-bit and using index transparency.

it seems the alpha channel transparency isn't supported by the browsers. Do you need 24-bit, or are the colours simple enough for 8-bit?
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Old August 1st, 2001, 07:23 PM
kloc kloc is offline
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also, netscape doesn't render pngs too well.
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Old September 4th, 2001, 02:39 AM
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Lightbulb
Hi there,
If your REALLY need to have PNGs with alpha transparency, the only way is using them inside a Flash movie, cuz Macromedia Flash is the only program (as far as I know) who can handle it.
Save as 24-bit + transparency PNG. Import into Flash.

Hope this helps
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Old September 7th, 2001, 01:42 PM
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hi,

just wondering, what is png good for? seems like from the previous poster that the only program that can handle 24bit png with alpha is flash, so is that where png is used the most?

thanks
edwin
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Old September 10th, 2001, 05:53 PM
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Hi Ricochet,

Good news, every one! I'm using Mozilla 0.93 and the corners of that square look perfectly white and smooth!!! Nice little piece of design, anyways!!

There seems to be light at the end of the png tunnel

Look at thread 21979 I posted. Somebody (I put this there for) is requesting for participation on a petition for (proper) png support in Internet Explorer!

It has not been my idea though

Hoping you take part there:

Atrus.
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Last edited by Atrus : September 21st, 2001 at 04:45 PM.
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Old September 21st, 2001, 08:07 AM
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The reason one uses PNGs rather than GIFs is not only because the compression, colour depth and other techy things are better than GIFs, but also for ethical and legal reasons. Unisys hold a patent on the LZW compression algorithm which the GIF uses, and to make software that can use GIFs you have to pay Unisys a great whack of money. Whereas PNGs are public tender, so you can use them at will without any lisencing problems!
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Old July 6th, 2002, 12:11 AM
erronreq erronreq is offline
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PNG's dont show their transparency in explorer without a registry tweak.

They work fine in Netscape 6 and Mozilla 1.0

Stupid Stupid Microsoft...
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  #12  
Old July 6th, 2002, 10:36 AM
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It seems they are deliberately boycotting free software here.

Atrus.
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