2x ZOOM on a 'Corioscan Select' scanconverter .... pfttt :( **READ WHY**

[dreamteck]

Hey everyone.

Today i tested a corionscan select scanconverter at digital planet (hi Dave) and just wanted to say that the 2x Zoom isn't good enough to output fullscreen, even when you set your desktop to 640 X 480 with overscan on.

I feel the zoom feature in scanconverters is pointless if it's not going to give a proper FULLSCREEN display !

Maybe theres scanconverters that give 4X or even 8X, am i being rediculous ?


:confused:



P.S (its a cheap scanconverter at just under 500.00 Australian Dollars but still ..... :rolleyes: )

[sleepytom]

i've allways found the zoom on the corrioscan to be ok, if a little fiddley to setup
the output size is fullscreen all the time regardless of the zoom setting is it not?

[dreamteck]

really? hmmm


i couldnt get mine fullscreen, at 640x480. I was close, but then i couldnt stretch the pic Vertically enough to lose the blue borders of my app ARkaos :(


what would be ideal is being able to zoom as much as you like on a desktop res of 1024 X 768 without quality loss of course...

would be nice if you could have a rectangular marquee selection tool (similar to photoshop) and being able to select the exsact crop you'd like automatically fitted to the output screen without no borders. ie; an exsact fit.

wonder if im making sense to any1 out there ? :rolleyes:


:)

[sleepytom]

ahh i think i see

this isn't a problem with the scanconverter, its down to arkoas not displaying its output at a suitable size.

See if there are any controls in arkaos for the output window size - if you make it a bit bigger than 1/4 of the screen size then you should be able to zoom in to it perfectly with no borders

*****
this is an important thing to note for anyone who wishes to make good vj software - its vital to be able to adjust the output screen size so that people can get your software to work with there scanconverter - you should also provide a black safe area round the output screen so that people who have problems setting up there scanconverter can have a slightly underscaned image with a black border rather than getting the edge of your GUI in the picture

*****
matrox dual head users can use the dualhead zoom option to crop the exact area they wish to display - this creates blackborders if you use the matrox tvout cable but you can get it fullscreen by sending the secondmonitor vga out to a scanconverter than use the strech/ overscan funtion of the scanconverter to remove the border and output a video signal - you get quite a noticable delay on the video output using this method though so its not really recomended unless you don't care about latency

[wellREDman]

the marquee selectable zooming is exactly what you get with a matrox dual head card,
and it looks like with the g550 thayve got rid of the slight black borders too

[dreamteck]

Originally posted by sleepytom
ahh i think i see

this isn't a problem with the scanconverter, its down to arkoas not displaying its output at a suitable size.




ah yes of course !! that's right mate. It's the silly Arkaos non-scalable output window that's at fault here :( doh !



:)

[dreamteck]

Originally posted by wellREDman
the marquee selectable zooming is exactly what you get with a matrox dual head card,
and it looks like with the g550 thayve got rid of the slight black borders too


nice :)

Now i wonder if the Geforce 4 cards also have this ?

[wellREDman]

i wonder too, but Ive not heard about it on anyone else's cards
prolly cos geforce etc are mainly aimed at gamers wheras matrox
are meant for edit suites, so u can zoom into the preview window
cant think of a gaming application where u need to zoom in on a portion of the screen

[DogBoy]

Sadly my Gainwaard Geforce 4 does not :(

I wondered if it was a software feature... the GeF4 does have a zoom, but it is more like an app, and doesn't send it to the tv-out, just magnifies to a different window (sort of like ms magnifying glass).

it SHOULD be able to do it though.

[dreamteck]

darn DogBoy :(

They say the new Matrox Parhelia Card will be ideal for VJing BUT it will be way too expensive :(



P.S (if anyone gets a Geforce4 to zoom to TV-OUT let us know please)

:)

[wellREDman]

posted on eyecandy:


>I mentioned this briefly on VJC/VJF and here but
I'm currently working
>on a software scan converter than would do just
that, dumping the output
>onto a second monitor/TV out. At present that
part of the program is
>completed (I tested it by zooming from 10,10 to
300,200 and outputted
>via a dual-head card onto a TV screen. We have
a final project merge in
>a couple of weeks, at which point I'll have a
fairly concrete timeline
>for release, but I would say right no that we're
looking at nothing past
>the middle of July.

[MoRpH]

Originally posted by wellREDman
posted on eyecandy:


>I mentioned this briefly on VJC/VJF and here but
I'm currently working
>on a software scan converter than would do just
that, dumping the output
>onto a second monitor/TV out. At present that
part of the program is
>completed (I tested it by zooming from 10,10 to
300,200 and outputted
>via a dual-head card onto a TV screen. We have
a final project merge in
>a couple of weeks, at which point I'll have a
fairly concrete timeline
>for release, but I would say right no that we're
looking at nothing past
>the middle of July.

RED this was posted by infopoc mate, this app has been posted about multiple times on the VJCforums.......

Dtek.... try checking the other threads b4 you post mate

[infopocalypse]

Yeah we know it works with GeForce 2 we'll also find out about GeForce 4 in the next few.

Pricing will probably be about $40-$50 USD, which I think is overwhelmingly fair as it will also support AVI capture (DivX compression did a sucessful test this morning), and irregular zooming (i.e zooming of an irregular aspect ratio). Since area AVI capture programs are normally about $20-$30 and irregular area scan converters are normally around $500-$600 (or more), I'd say that's a nice deal. As we've written such software we might also pursue the option of making an image processor, which would be the biggest part of making a video wall. At current ElectroSonic makes those and charges an arm and a leg for them (I think about $2000-$3000 per). As all an image processeor does is split an image into multiple outputs, creating a dedicated unit to perform this function with out existing software should not be much of a problem, nor should it have the associated expense of something like an ElectronSonic ImageMag2)

No timetable on that yet though.

James

[MoRpH]

Originally posted by infopocalypse
At current ElectroSonic makes those and charges an arm and a leg for them (I think about $2000-$3000 per).

I have to say I am VERY IMPRESSED by the fact that with the great multiskilled ppl we have here on this forum that we can get so many great hardware and software projects going.... not only things that have been created specificly for VJs but also stuff that will replace currently overpriced products, putting them into the reach of more VJs...... here here!!! Excellent work ppl :D

MoRpH = VERY proud to be a part of it all :)