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Can you make 3D movies from two 2D video tracks ?
Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
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RE=vn800rider : From my experience, using different cameras without a replicable setup would seem to me to lead to hard work at the editing end.

I agree with what Adrian has written. Wolfgang is also right regarding matching video up. There is a report on the forum where a GoPro editor asked the same question. I tried to assist. I found I could create a side by side but PD would not recognise the footage as 3D, so editing the finish file proved quite difficult. With SbyS the left or right pane is recognised and displayed allowing an editor to carry out Timeline edits. this wasn't the case with the "manufactured" footage. Anaglyph would be the only option.

When I experimented with a two 2d cameras for a 3D set up I noticed the differences two cameras record footage. It made me back away from the effort (wasting my time) as the equipment I had just wouldn't cut the mustard. PD10's 2D to 3D conversion is so much easier ha ha...

The pitfall I found with the 3D camera i have is the lack of zoom - just cant get into that close (2D can) shot.

Dafydd

This message was edited 1 time. Last update was at Mar 19. 2012 07:59

Xerox [Avatar]
Contributor Location: California, USA Joined: Aug 09, 2009 01:36 Messages: 446 Offline
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Doing a side-by-side (half) is a lot easier to do than anaglyph.

After placing the right-eye video on track 1 and the left-eye video on track 2, you need to keyframe the free-form values under "clip attributes."

For track 1 (Right eye):
Freeform Top Left X: 0.500
Freeform Bottom Left X: 0.500

For Track 2 (Left eye):
Freeform TopRight X: 0.500
Freefrom BottomRight X: 0.500

You need a keyframe at the start *and* at the end of each clip with the values.

When entering values, you need to enter a leading zero before the decimal/comma (depending on country).

Then Produce a 2D video. Tip: Produce to one of the formats that PowerDirector supports on the Create tab for a smart-rendered 3D DVD, AVCHD, or Blu-ray.

After producing the side-by-side (half) video, start a new project and put that on the timeline. In the Library or on the timeline, right-click and then designate the 3D Source as "side-by-side."

Finally, Create a 3D disc.

That's all you need to do assuming that the source videos don't need any alignment adjustments.
Gateway DX4380, AMD A8-5500 Quad Core 3.2GHz with ATI Radeon HD 7560D; 16GB RAM; 1 TB SATA 7200 RPM; Windows 8 Pro 64-bit; PDR11, PDVD12.
Michael8511
Contributor Location: U.S.A. Indiana Joined: Jan 14, 2012 16:12 Messages: 374 Offline
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I have 2 Hero GoPro cameras and have though about getting there 3D system. It looks like they mount the 2 cameras side by side with on trun what I woild call upside down. I have not seen any video from it. But here is a link to it to see how they have them mounted.

http://gopro.com/hd-hero-accessories/3d-hero-system/ Intel i7 5960X overclock to 4 Ghz 16 GB of ram.
GoPro 4
Canon VIXIA HF G10
Canon EOS Rebel T3
Canon EOS 70D
My Vimeo Channel http://vimeo.com/user3339631/videos
Julien Pierre [Avatar]
Contributor Joined: Apr 14, 2011 01:34 Messages: 476 Offline
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Xerox,

Thank you very much !

Doesn't this technique end up dividing the resolution in half, however ?
Each video is rendered in half of the screen, side by side. But the resolution is not increased, the width is still 1920 pixels.
I would need to increase the width to 3840 pixels in order to keep all the data using this method.

So, it would seem that there would be a 50% loss in quality with this side-by-side method.
Is there any way to alternate frames from 2 tracks instead, but still keep the full resolution ?

It looks like it's not possible to force "multiview video coding" or "dual view format" when doing the "set 3D source format" step. Those 2 options are greyed out. I guess they only work if you have video files from a 3D camcorder ...

Quote: Doing a side-by-side (half) is a lot easier to do than anaglyph.

After placing the right-eye video on track 1 and the left-eye video on track 2, you need to keyframe the free-form values under "clip attributes."

For track 1 (Right eye):
Freeform Top Left X: 0.500
Freeform Bottom Left X: 0.500

For Track 2 (Left eye):
Freeform TopRight X: 0.500
Freefrom BottomRight X: 0.500

You need a keyframe at the start *and* at the end of each clip with the values.

When entering values, you need to enter a leading zero before the decimal/comma (depending on country).

Then Produce a 2D video. Tip: Produce to one of the formats that PowerDirector supports on the Create tab for a smart-rendered 3D DVD, AVCHD, or Blu-ray.

After producing the side-by-side (half) video, start a new project and put that on the timeline. In the Library or on the timeline, right-click and then designate the 3D Source as "side-by-side."

Finally, Create a 3D disc.

That's all you need to do assuming that the source videos don't need any alignment adjustments.

This message was edited 1 time. Last update was at Mar 20. 2012 03:55

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Julien Pierre [Avatar]
Contributor Joined: Apr 14, 2011 01:34 Messages: 476 Offline
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Google found this post.

http://forum.cyberlink.com/forum/posts/list/20971.page#111263

So looks like full side by side 3840x1080 is possible, if you hack the profile manually. It's just not available in the UI.

But it still requires an intermediate step - you have to create this side-by-side first in one project, and then you have to create a second project and import that video.

It's great that it's possible, but it's less than optimal.
The 2 streams -> full SBS -> 3D involves two lossy compression steps. That's one more than there should need to be. Quality will still suffer. Not to mention of course the processing time.

Then I still have to mix my audio tracks, when should do I add them ? To the first or the second project ?
I suppose the second.

Maybe PD11 will allow all this to be done in one project.
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480 GB Patriot Ignite SSD (boot)
2 x 480 GB Sandisk Ultra II SSD (striped)
6 x 1 TB Samsung 860 SSD (striped)

2 x LG 32UD59-B 32" 4K
Asus PB238 23" HD (portrait)
Julien Pierre [Avatar]
Contributor Joined: Apr 14, 2011 01:34 Messages: 476 Offline
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Xerox,

Quote:
After producing the side-by-side (half) video, start a new project and put that on the timeline. In the Library or on the timeline, right-click and then designate the 3D Source as "side-by-side."

Finally, Create a 3D disc.

That's all you need to do assuming that the source videos don't need any alignment adjustments.


I actually tried your method. The first rendering took 10 minutes, and 2 minutes for the second rendering.
This is for a pair of 2 minute video tracks.

Everything went fine except the last step.

I created a Blu-ray 3D disc, but when I play it with PowerDVD 10 Ultra 3D, it just shows the 2 videos side by side.
It does the same thing even when I play it on my other computer which has a 3D TV attached and plays commercial BD 3D titles just fine.

I also tried to create individual video files as opposed to a BD 3D disc, using the "Produce" option and selecting "3D".
It doesn't matter which file format I target - MPEG-2 or H.264. Windows Media Player can't seem to play the resulting files correctly, anyway, it seems to play them at half speed, at least on my 2D system. The audio is all broken.

Shouldn't the 3D video files still be able to playback on my 2D editing system ?

I am not anticipating any great results given the 2 different camcorder used, different lenses, different sensitvity, and just using a level to try to get the 2 camcorders aligned - they were on 2 separate tripods next to each other, farther than 3 inches apart.
But still I would like to be able to check out the result
I don't have any anaglyph glasses so I have no way to preview the 3D at all on my 2D editing system ... I can only view the 3D on the 3D TV upstairs in the bedroom. Maybe I need to install Powerdirector on that HTPC ... sigh.

I am trying to produce in WMV "double" format in 3D right now. Looks like it will take 15 minutes to produce the file! vs 2 minutes for the H.264 or MPEG-2 . wow..
MSI X99A Raider
Intel i7-5820k @ 4.4 GHz
32GB DDR4 RAM
Gigabyte nVidia GTX 960 4GB
480 GB Patriot Ignite SSD (boot)
2 x 480 GB Sandisk Ultra II SSD (striped)
6 x 1 TB Samsung 860 SSD (striped)

2 x LG 32UD59-B 32" 4K
Asus PB238 23" HD (portrait)
Julien Pierre [Avatar]
Contributor Joined: Apr 14, 2011 01:34 Messages: 476 Offline
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Finally got the video files to play in 3D with PowerDVD .. Had to click the 3D button .. silly me. Then it put the TV in 3D mode.

Then PowerDVD prompted me for the video file type, I selected side by side, and it played.
Closing one eye at a time, I could see each video ... But keeping both eyes open was very much eyestraing inducing and completely unwatchable . Much worse than I thought. One really needs a way to make the spatial adjustments when editing but I don't see how.
Unless I had a pair of anaglyph glasses and used preview in anaglyph. Or a 3D LCD monitor ...

I still would like to know if doing this with 2 identical camcorders and a proper mount to keep them in the right relative spots and obviate the need for any spatial adjustments would make this a viable 3D process or not, as opposed to buying a $1500+ 3D camcorder. 2 x $180 camcorder + mount would be a lot cheaper if it works.
MSI X99A Raider
Intel i7-5820k @ 4.4 GHz
32GB DDR4 RAM
Gigabyte nVidia GTX 960 4GB
480 GB Patriot Ignite SSD (boot)
2 x 480 GB Sandisk Ultra II SSD (striped)
6 x 1 TB Samsung 860 SSD (striped)

2 x LG 32UD59-B 32" 4K
Asus PB238 23" HD (portrait)
Michael8511
Contributor Location: U.S.A. Indiana Joined: Jan 14, 2012 16:12 Messages: 374 Offline
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I was taking a second look at the GoPro 3D setup again. Being I all ready what 2 camera I might just spend $100 and get the 3D system. I have no ideal what a motorcycle ride would look like in 3D.


GoPro 3D HERO System Review http://www.youtube.com/watch?v=Vd8eJ_mJAv0

3D GoPro Whistler Experience http://www.youtube.com/watch?v=gHOuraqk_CQ&feature=channel

They say the inportion part is the synk cable. http://www.youtube.com/watch?v=jhamhC-zhWk&feature=related

This message was edited 1 time. Last update was at Mar 20. 2012 10:32

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Canon VIXIA HF G10
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Canon EOS 70D
My Vimeo Channel http://vimeo.com/user3339631/videos
James Dotson
Senior Contributor Location: Tennessee Joined: Aug 24, 2009 20:40 Messages: 3066 Offline
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Quote: I have 2 Hero GoPro cameras and have though about getting there 3D system. It looks like they mount the 2 cameras side by side with on trun what I woild call upside down. I have not seen any video from it. But here is a link to it to see how they have them mounted.

http://gopro.com/hd-hero-accessories/3d-hero-system/


Here is my YouTube channel. There is nothing mind blowing on there, but all of the 3D was taken with the GoPro 3D System. There is some anaglyph and some side-by-side. I will be adding more in the near future now that warm weather is here.


http://www.youtube.com/playlist?list=PLFCCBC3D7A0C07773 __________________________________
CORNBLOSSOM
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Things to take into account when filming 3d: Objects at infinity need to line up with each other if the left and right images are placed on top of each other.

Your eyes are designed to go from parallel to cross, but not wider than parallel. If the display has infinity set at more than 1.5" of separation your eyes will bleed looking at it.

Also, if the two cameras are separated too far and the object being recorded is close, the amount of cross-eye to align the objects will be painful as well.

Lastly, if the tilt and vertical alignment are not perfectly matched your brain will explode.

A *good* 3d movie player will allow you to adjust the horizontal spacing of the left/right eye. This allows you to move the 3d image into or out of the screen. To calibrate it optimally, find the scene with the "deepest" image, and set it so the images are 1.5" separated, so that the left eye is looking at the left image and right eye on the right image.

There is no way to adjust the amount of 3d effect after filming, you can only adjust how far into or out of the TV it is. It's like pushing a yardstick forward or backward. You can move it, but you can't change how long it is.

It's more pleasing to have a behind-the-screen 3d effect, but the difficulty is ensuring the images are never spaced more than 1.5 inches apart. The cameraman cannot control that, because it depends on how big the screen is.

If I arrange my cameras so that the behind the screen 3d effect creates 1.5" spaced images on my 19" monitor, then on a 60" monitor it would be 4.5"! Your eyes cannot look in opposite-than-cross-eyed directions. In nature you would never have a divergence of parallel (looking at infinity)

So for this reason I don't make assumptions about the size of the screen the 3d video will be watched on. I calibrate my cameras so that infinity is perfectly aligned.

Good software will let the viewer push back infinity behind their screen to their desired effect, which will turn out to be about 1.5" of seperation (left to left / right to right)

All pop-out 3d effects come from your left eye looking at the right image, and vice-versa

Here is an example of a media player that allows you to adjust 3d "placement" on the fly
http://www.tridef.com/user-guide/media-player


Edit: I found the feature for PowerDVD:
3D scenedepth: if required, use the slider to adjust the amount of 3D scene
depth on the video image, until the resulting 3D image is optimized for your
specific setup and your viewing experience. The 3D scene depth slider can be
used to adjust the scene depth on both native 3D and TrueTheater 3D


As I said before, find the "deepest" scene and set it so the images are no more than 1.5" spaced apart.

This message was edited 3 times. Last update was at Mar 21. 2012 02:10

Michael8511
Contributor Location: U.S.A. Indiana Joined: Jan 14, 2012 16:12 Messages: 374 Offline
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Will I think with the GoPro I will stick with 2D. I was watch this video where a motorcycle rider tested it from a motorcycle.
http://www.youtube.com/watch?v=DkS5a9CH2Zw Intel i7 5960X overclock to 4 Ghz 16 GB of ram.
GoPro 4
Canon VIXIA HF G10
Canon EOS Rebel T3
Canon EOS 70D
My Vimeo Channel http://vimeo.com/user3339631/videos
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The thing they forget to mention in that video is that the field of view affects 3d as well as camera separation.

GoPro3D has the worst layout: lenses are right next to each other and the field of view is ultra-wide.

The wider the field of view, the less parallax is visible, which reduces 3d effect.

To shoot robust 3D, you must have a mount that allows you to tweak the distance between the cameras.

The best 3d effect will be for objects in the center of the frame, and close, but at 170 degree fov, object near the edge will almost never be in 3d because both cameras are looking almost sideways from the exact same angle.

There's no way around the lack of 3d at the edges.

Also, the further away an object is, the less parallax is visible, so the more separation you need.

I wanted to try and capture video of thunderstorms in 3d. Clouds are very far away, so I needed a lot of variation in perspective. In this sample I placed the cameras 12 feet apart from each other, and there is still minimal 3d effect in the clouds!

http://www.youtube.com/watch?v=SZxGvXYnyZw

I wonder if their 3d case allows you to reverse the orientation so that the optics are separated instead of next to each other.
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