Looking for a filter to start and end cartoons

[ChrO]

I'm looking for a filter that can add this effect that looks like a closing of a camera, cartoons sometimes starts and ends with this.

I don't know if it is called a "lense closing" in english?

I am adding captured Disney shorts on DVD, and really wants this effect in between them.

Can anyone point me to, where i can finde a filter for virtualDub, that can do that?
Thanks a lot !
Chr

[makntraks]

I'm looking for a filter that can add this effect that looks like a closing of a camera, cartoons sometimes starts and ends with this.

I don't know if it is called a "lense closing" in english?

I am adding captured Disney shorts on DVD, and really wants this effect in between them.

Can anyone point me to, where i can finde a filter for virtualDub, that can do that?
Thanks a lot !
Chr

I've used several capture programs but when I "assemble" them I use Pinnacle Studio and use the "transitions" that are come with software to do what you are asking... I drop in my caps and put these "transitions" between them. When I convert they are already into final video output...
Not sure if VDub has anything like that... maybe but I doubt it due to the type of software VDub is...

Just my $0.02
makntraks

[FOO]

I know how to do it with a rectangular hole , but not
circular. You also want the spiral lens iris line too , no doubt .


Dunno I'll look . Maybe Ulead MS7 has that

[ChrO]

Thanks a lot for the replys, i am sorry to say it, but Pinnacle Studio doesn't fit in my budget for this month
I hope that there are some free alternatives for this kind of transition.
Maybe i could try to write a new filter for virtualDub, but i am not so much in to C

Chr

[FOO]

I found one in MS7. Also not cheap , but you could do your
project with the Demo .

[ChrO]

Thanks!
I will try out the demo! And get the job done before it expires
I will reply to this post if i find some way to do transitions between clips, for a low budget user... 8)
Thanks again.
Chr

[dphirschler]

I believe it can be done using AVIsynth. Here is my theory:

1. Create a white circle on a black background in your favorite photo editor. Make it large enough that at 1:1 will fill the entire screen with white.

2. In AVIsynth, create a script that resizes smaller and crops, which will creat a zoom effect.

3. Use the resulting clip as a mask over your video.

4. You may also decide to shrink your video slightly as the circle gets smaller.


OR, you could create the animation frame by frame in your favorite photo editor and use it in AVIsynth.


Darryl

[FOO]

Don't you mean resizes smaller and add borders ?

[FOO]

OKay here's part 1 in Avisynth.
Now we have to mask the video with it

# Generate a shrinking circle for use as a video mask 

ImageReader("circle.bmp", 0 , 99 )	# black with a white circle 

v1 = last 

Animate(  0 , 99 ,"shrink", v1 , 1.0 , v1 , 0.02 )

return last




Function shrink( clip c , float f ) # If f gets too small , resize crashes 
{
	W = c.width
	H = c.height

	NEW_W = int( W * f )
	NEW_H = int( H * f )

	BL = (W - NEW_W) / 2 
	BT = (H - NEW_H) / 2
	BR = W - ( NEW_W + BL )
	BB = H - ( NEW_H + BT )

	v = pointResize(c, NEW_W , NEW_H )

	v = AddBorders(v, BL, BT , BR, BB)

	return( v )
}

more later

[ChrO]

Thank you for all your help and interest in this subject
I think that can do the trick, shrinking the white circle and adding black borders 8)
I will see if i can get Avisynth to do it, and get back.
Chr

[FOO]

Here's a way to apply the circle to a movie.
Generate avi with the above script, and use it in the following:

m = avisource( "circle.avi").converttorgb32
v = avisource( "movie.avi" ).converttorgb32

Layer(m, v, "mul", 255  )