File:PNG transparency demonstration 1.png

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PNG_transparency_demonstration_1.png(800 × 600 pixels, file size: 375 KB, MIME type: image/png)

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English: PNG transparency demonstration
24bit PNG with 8bit alpha layer
Source Own work: Rendered in POV-Ray by user:ed_g2s.
Author POV-Ray source code
Other versions

See also: Image:PNG transparency demonstration 2.png, Image:PNG transparency demonstration 3.png


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A demonstration of a PNG-Image.

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File history

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(newest | oldest) View (newer 10 | ) (10 | 20 | 50 | 100 | 250 | 500)
current23:01, 7 January 2019Thumbnail for version as of 23:01, 7 January 2019800 × 600 (375 KB)CyberShadowRe-render and calculate proper transparency. POV-Ray seems to ignore the effects of transparency for translucent objects when calculating the output image alpha channel. Even though the dice are semi-transparent, this is not represented in the resulting PNG image. Rectify this by performing two renders (with a fully-black and fully-white background), then calculate the correct alpha value with a separate tool, so that the dice appear properly translucent depending on the background the imag...
03:11, 6 January 2019Thumbnail for version as of 03:11, 6 January 2019800 × 600 (213 KB)CyberShadowReverted to version as of 17:40, 16 January 2016 (UTC) - the "compression" was destructive and overwrote some of the alpha channel (try viewing on a black background, e.g. in Chromium!)
19:49, 25 February 2017Thumbnail for version as of 19:49, 25 February 2017800 × 600 (175 KB)GnashOptimized
12:27, 22 November 2016Thumbnail for version as of 12:27, 22 November 2016800 × 600 (197 KB)PoyekhaliMore filesize reduction using IrfanView, with compression level at maximum (9) and transparency saved in alpha channel. No PNGOUT used.
17:40, 16 January 2016Thumbnail for version as of 17:40, 16 January 2016800 × 600 (213 KB)MB298Reverted to version as of 10:15, 24 December 2014 (UTC) (oops!!)
17:39, 16 January 2016Thumbnail for version as of 17:39, 16 January 2016800 × 600 (216 KB)MB298Reverted to version as of 05:42, 6 December 2012 (UTC)
10:15, 24 December 2014Thumbnail for version as of 10:15, 24 December 2014800 × 600 (213 KB)Rhapsody Scarletpngout good, zopflipng better.
05:42, 6 December 2012Thumbnail for version as of 05:42, 6 December 2012800 × 600 (216 KB)JeffyPpngout always wins.
23:25, 30 January 2010Thumbnail for version as of 23:25, 30 January 2010800 × 600 (216 KB)AtomCrusherSqueeze!
12:16, 22 April 2009Thumbnail for version as of 12:16, 22 April 2009800 × 600 (238 KB)Ed g2sNew version
(newest | oldest) View (newer 10 | ) (10 | 20 | 50 | 100 | 250 | 500)

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