3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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About the Stereoscopic 3D Support in the Daum Potplayer

September 10th, 2012 · 7 Comments · Other S3D Tech


Potplayer is yet another free software video player coming from Korea, much like the GOM Player or the KMPlayer, in fact Potplayer is very similar to KMPlayer in many aspects including the fact that the player comes with built-in codecs to support all of the most common video and audio codecs out of the box. And much like the other two Korean players mentioned above, Daum Potplayer also has some stereoscopic 3D support built-in and that is what interests me the most…



The Potplayer has built-in support for displaying 2D subtitles properly when playing back stereoscopic 3D videos with it, however this only works for 3D videos in Side by Side or Top & Bottom format. The options is available in the right-click quick menu as well as in the player options. Of course you get the 2D subtitles properly displayed on top of 3D video, but the subtitles are put at screen depth level and you cannot adjust their position in 3D space. For more flexibility you will need to go for something like the ffdshow subtitles filter for the playback of 2D subtitles over 3D video files.



What is more interesting in the Potplayer is the ability to use a predefined set of pixels shaders to convert 3D videos from Side by Side or Top & Bottom to anaglyph 3D format (Green-Magenta or Red-Cyan) and to watch a 3D version of 3D videos. This and the 2D subtitles support for 3D videos is intended to be used for 3D video playback on 3D HDTVs and the only thing in that aspect that is kind of missing here is the support for Row Interleaved output for passive 3D HDTVs. Another thing that is missing and might be useful in terms of stereoscopic 3D support is a software pageflipping mode that could be useful for people with 3D DLP projectors. So there is more to be desired in terms of stereoscopic 3D support from the Portplayer, though with the use of pixel shaders (if you know how to write the needed code) it is possible to extend the functionality of the player. Nevertheless Daum Potplayer could be useful for some people willing to play not only stereo 3D videos, but various 2D videos as well, so if you still haven’t tried it you might check it out.

To download and try an English version of the Daum Potplayer free video player…

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Using GOM Player for 3D Video Playback with Subtitles on 3D HDTVs

February 11th, 2012 · 1 Comment · Other S3D Tech


One of the common complaints by the new to 3D users from the usual 3D video players such as the 3D Vision Video Player and the Stereoscopic Player is that they lack some features that have been common for quite a while on other 2D video players like Media Player Classic, KMPlayer, GOM Player, VLC etc. Unfortunately none of these few very popular and widely used media players does have full stereoscopic 3D video support, but some of them do have some useful features for people watching 3D videos as well. I’m going to be talking about the GOM Player here, as it is one of the first to implement some stereo 3D-related features in its official version and more specifically 3D subtitle support. This means that when playing back 3D video sin Side by Side or Over/Under format you would be easily properly overlay 2D text subtitles over the video in a proper format, so that you would get 3D subtitles displayed at screen depth. An easy to use functionality built into the GOM Player that everyone can use without having to go through adding additional filters and configuring them as is the case with using the ffdshow subtitles filter for example, but also not as flexible and as functional as the external ffdshow filter for subtitles.



To activate the 3D subtitles support in the GOM Player you need to right click on the video player, select the Subtitles menu, 3D Subtitles Mode and choose Disabled for 2D subtitles, Left/Right Mode for Side by Side and or Top/Bottom Mode for Above/Below videos. Have in mind that the choice you’ve selected remains until you close the player or select something else, so even if you play a 2D video after watching a 3D video with activated 3D subtitles support, the subtitles will still be shown “doubled” in the 2D video, so you would have to switch to 2D mode. Closing the player and then running it again however resets the 3D Subtitles mode to the default Disabled state, meaning the normal 2D video support.



When switching the subtitles to a different mode for 3D videos the on-screen messages overlayed on the video from the player also change correspondingly to reflect the 3D format of the video being used. What is left however is to also do the same with the playback controls of the player at the bottom of the screen that still render in 2D. So a job well done for the authors of GOM Player, but there is more to be desired in terms of stereoscopic 3D support that can be added in the software. Have in mind also that the 3D Subtitles functionality of the GOM Player is only useable for playing back 3D videos with subtitles on 3D HDTVs with manually activating Side by Side or Above/Below input mode. GOM Player does not support HDMI 1.4 frame packaging or frame sequential output for 3D content and is not compatible with stereoscopic 3D solutions such as the 3D Vision, so it is not a complete replacement for the 3D Vision Video Player or the Stereoscopic Player, just an alternative that you may use in some cases.

To download and try the latest version of the free GOM Player with 3D Subtitle support…

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