File:PNG transparency demonstration 2.png

Size of this preview: 800 × 599 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 997 × 747 pixels.

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

This free media file is from Wikimedia Commons. Its description page is included below.

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

I, the copyright holder of this work, hereby publish it under the following licenses:

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

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.

You may select the license of your choice.

This image was created with POV-Ray.

File history

Click on a date/time to view the file as it appeared at that time.

	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}}