Motion traking info

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Motion traking info

Postby alverman » Tue Jul 19, 2011 4:55 pm

Hello, is there someone I can 'explain that objects and how to use them to have the effect of the video?

thanks, Alverman

http://cooluxconnect.ning.com/video/motion-tracking-flashlight
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Re: Motion traking info

Postby alverman » Tue Jul 19, 2011 10:15 pm

I've been using motion detectors, but I can not figure out how to use layers and on what parameters to use.
You can create this effect with a pro player and manager lt?
Help please
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Re: Motion traking info

Postby Markus Zeppenfeld » Wed Jul 20, 2011 9:10 am

Hi alverman!

Which part do you exactly mean? There were several effects and objects used...

Markus
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Re: Motion traking info

Postby alverman » Wed Jul 20, 2011 9:14 am

The first, what the image looks with the light beam.
Then I realized that what if the rest comes from ...... at least I think:)

Tnx
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Re: Motion traking info

Postby Markus Zeppenfeld » Wed Jul 20, 2011 9:19 am

Hi!

I think this is just an IR-Camera tracking combined with / as a mask which will become transparent on this exact position.

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Re: Motion traking info

Postby alverman » Wed Jul 20, 2011 9:27 am

Looking like the node motion detection works would seem that it might work with a telecamera normal.
The node leaves the values ​​x and y.
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Re: Motion traking info

Postby Markus Zeppenfeld » Wed Jul 20, 2011 9:32 am

Hi!

Of course, there are always several ways to reach an effect.
I can't tell you how they really solved it, as we haven't been involved in this demo.

Motion detection can be a way as well as the motion mask. The motion mask will provide this typical clouded outlines around the light beam.

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Re: Motion traking info

Postby alverman » Wed Jul 20, 2011 10:37 am

But if I put on layer 1 and put an image on the layer opacity to 255 and 2 put a picture all black with
a circle of transparency and opacity to 255 I only see the image of layer 2.

I thought to see portion of layer 1 in the circle !!
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Re: Motion traking info

Postby ricky » Wed Jul 20, 2011 11:08 am

Hi Alberto,
you don't have to put a black picture on layer 2 but the DVI live input of Widget's motion mask tool. The background of this capture is black and the mask become white when you pass through the cam, so you could use white key or black key to discover the first layer.

Greetings ;)
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Re: Motion traking info

Postby Markus Zeppenfeld » Wed Jul 20, 2011 11:16 am

Alverman,

are you saying that the image with transparency is not showing you the part of the layer behind? Did I got this right?

Which file format did you use? Keep in mind, that neither JPEG nor BMP are supporting transparency within the image. Use PNG or TGA to deal with transparency.
Is your layer composition wrong in any way? Z-Pos or your camera position that you can't see the background?
What are you seeing in total? Is the transparency area white?

Markus
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Re: Motion traking info

Postby alverman » Wed Jul 20, 2011 3:30 pm

The mask I use is a PNG. Before it did not work ..... now ok.
I saw that it would be more suitable to use 'Camera Point Traking' but I can not find how to use the node.
Setting values ​​in tool 'Camera Point Traking' but in the relative node does not see the values ​​change.

Why?

Thanks, Alverman
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Re: Motion traking info

Postby Markus Zeppenfeld » Wed Jul 20, 2011 4:17 pm

Hi!

I combined the "camera point tracker" with the "add relative"-node for the x-Pos of the Tracker. Everything works right at my end.
Are you maybe stuck in the move/edit mode, which will disable the update of the nodes?

Markus
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Re: Motion traking info

Postby alverman » Wed Jul 20, 2011 10:06 pm

Not work for me.
I have connect a dv camera firewire.
White point in Tools Camera Point Traker is the light but in the node not show any value :(
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Re: Motion traking info

Postby Markus Zeppenfeld » Thu Jul 21, 2011 8:22 am

Hi!

You have to set the input-node to ID1 (you are currently using 0 which is not present), referencing your first tracked point. If you want to get the information of point 2, you have to set the node to ID 2.

Markus
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Re: Motion traking info

Postby alverman » Thu Jul 21, 2011 9:38 am

Does not work :(
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