File:PNG transparency demonstration 2.png

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Original file (997 × 747 pixels, file size: 289 KB, MIME type: image/png)

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Summary

DescriptionPNG transparency demonstration 2.png	English: PNG transparency demonstration 24bit PNG with 8bit alpha layer
Date	12 July 2005, 22 April 2009, 1 February 2022
Source	Own work: Rendered in POV-Ray.
Author	POV-Ray source code. 2005 version by Daniel G.. 2009 version by Ed g2s. 2022 version by Nguyễn Trí Minh Hoàng.
Other versions	See also: Image:PNG transparency demonstration 1.png, Image:PNG transparency demonstration 3.png
Source code InfoField	POV-Ray source code

Licensing

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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.

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File history

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	Date/Time	Dimensions	User	Comment
current	09:10, 1 February 2022	997 × 747 (289 KB)	Nguyễn Trí Minh Hoàng	Re-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 image
	09:02, 1 February 2022	995 × 745 (289 KB)	Nguyễn Trí Minh Hoàng	Reverted to version as of 09:01, 1 February 2022 (UTC)
	09:01, 1 February 2022	800 × 600 (178 KB)	Nguyễn Trí Minh Hoàng	Reverted to version as of 19:51, 25 February 2017 (UTC)
	09:01, 1 February 2022	995 × 745 (289 KB)	Nguyễn Trí Minh Hoàng	Re-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 image
	19:51, 25 February 2017	800 × 600 (178 KB)	Gnash	Optimized
	10:17, 24 December 2014	800 × 600 (178 KB)	Rhapsody Scarlet	zopflipng
	23:24, 30 January 2010	800 × 600 (180 KB)	AtomCrusher	Squeeze!
	12:16, 22 April 2009	800 × 600 (194 KB)	Ed g2s	New version
	08:04, 15 October 2005	320 × 240 (47 KB)	Txuspe	Compressed with PNGOUT.
	00:45, 12 July 2005	320 × 240 (64 KB)	Daniel G.	24bit PNG with 8bit alpha layer Rendered in POV-Ray by user:ed_g2s. See also: Image:PNG transparency demonstration 1.png {{GFDL}}