Flash Video in 3D - The TutorialApril 2nd, 2007
Adobe launched my Flash Video in 3D tutorial today. The tutorial, geared towards intermediate developers, walks you through mapping video to a 3D mesh using Papervision 3D and includes source code.
April 2nd, 2007 at 8:40 pm
Paul….awesome!
April 16th, 2007 at 9:40 pm
Have you ever had a problem with video freezing (On2 codec failing to produce new frames) yet the render event keeps firing and rendering the now static video bitmap on the 3D surface? I’m trying to figure out why my video-on-3d freezes. Is there a place where one can look for exceptions? I don’t get anything out of the debug standalone viewer when the video freezes.
April 18th, 2007 at 10:22 am
Are you streaming the FLV? Security restrictions in the Flash Player won’t allow you to grab a bitmap capture of RTMP content. See the note about it in the live docs, http://tinyurl.com/38rsoe. There are some work arounds but I wouldn’t count on them to work in the future. Unfortunately, the best you can do is embed the FLV into a SWF for now and hope Adobe changes its security policy on the matter.
If that’s not the cause of the issue… Not sure what is. I’ve never had any problems beyond the security restrictions.
July 5th, 2007 at 1:50 pm
Hi Paul,
I’ve tried compiling your project with the latest version of PV (as of 7/5/07), and the video disappears; presumably, the BitmapData doesn’t update properly. Is there an obvious change that I need to make to the code? I haven’t been able to find it.
Thanks!
David
July 6th, 2007 at 9:54 am
Hi David,
There have indeed been changes in some of the newer revisions of the PV3D library that cause issues with the Video 3D code. I had a look and there is a pretty simple fix that should get things up and running again.
In Video3DScene add the following line above line 78…
BitmapMaterial.AUTO_MIP_MAPPING = false;
and change the following…
screen.addCollada(”screen.dae”, materials);
to
screen.addChild(new Collada(”screen.dae”, materials));
Hope that helps.
July 26th, 2007 at 8:59 am
Thanks, that fixes it!
September 17th, 2007 at 7:24 am
Hi,
My flv contains an alpha channel and is encoded with On2 VP6 and I’ve got 2 issues;
1. I’ve set the bitmapData transparency switch to true and color to 0×00FFFFFF,
The video and transparency do work, but each frames “stays” on the surface as
if it were painted on (Lets say “a dot passing by would draw a line”)
I need to know if there’s a workaround for this
2. Also the video and sound are completely off-sync. Obviously the video is slowed
down but the sound plays to its correct speed. Any idea to fix this? I suppose
the video resolution is for something (1080×608) but when used “normally”
without PV3D, it plays well.
Is using a plain instead of a collada mesh would help?
Thanks,
Olivier Clément
October 3rd, 2007 at 8:31 am
I haven’t tried using a video with an alpha channel. I would guess that you just need to make sure the Bitmap object and Papervision are allowing (setup properly) the transparency.
Unfortunately I’ve had problems with audio syncing too. I’ve had a better experience with streaming the video. There are security restrictions around capturing RTMP content so you have to hack around these. I did this by using a Flash 8 SWF which loads and streams the FLV and then loading this SWF into my FP9 / Papervision app. However, this may not work in the latest versions of the player.
January 23rd, 2008 at 8:50 pm
I had same problem as david but even after following instructions…
In Video3DScene add the following line above line 78…
BitmapMaterial.AUTO_MIP_MAPPING = false;
and change the following…
screen.addCollada(â€screen.daeâ€, materials);
to
screen.addChild(new Collada(â€screen.daeâ€, materials));
…it i still video on my mesh
pls help
January 23rd, 2008 at 8:52 pm
Sorry I meant I still have no video showing on my mesh I can here it and move the dae around but I cant see video