[mythtv] New mythgallery gl transition patch (zooming blend)

[Mark Dobossy]

On Oct 19, 2005, at 8:52 PM, Stephen Boddy wrote:

> On Wednesday 19 October 2005 21:23, Colin Guthrie wrote:
>
>> Mark Dobossy wrote:
>>
>>> If any mythgallery users out there could please give my patch a   
>>> whirl,
>>> and give some feedback, I'd appreciate it.  It is simply a  modified
>>> version of the blend (gl) transition, that zooms/fades out  the  
>>> previous
>>> picture, as the new picture fades in.  The patch file  adds the new
>>> transition- it will be in the mythgallery settings, and  is  
>>> called "zoom
>>> blend (gl)".  The patch is attached to ticket #490:
>>> http://cvs.mythtv.org/trac/ticket/490 .  Any feedback would be  
>>> great!
>>>
>>
>> Not currently up-to-date with mythgallery or myth generally with the
>> latest svn versions so can't give feedback but this is the best blend
>> ever invented.
>>
>> If you want to give it it's proper name, I think it is called the  
>> "Ken
>> Burns Effect"...
>>
>> http://en.wikipedia.org/wiki/Ken_Burns#Ken_Burns_Effect
>>
>> Probably worth editing the wiki to say MythTV will have it by v  
>> 0.19 :)
>>
>> Col.
>>
>
> Slightly OT, but has anyone else noticed the slightly ugly step  
> change in the
> background colour with glblend? If your pictures aspect ratio  
> doesn't match
> your display (i.e. a 4:3 image on a 16:9 display) as the images  
> cross fade,
> the background fades - in my case - from black to a mid-grey. Then it
> suddenly snaps back to black. Rather spoils the effect...
> -- 
> Steve Boddy

Steve-

Yes I had noticed this.  I'm not sure why, but the blend routine puts  
a 20% grey quad behind the fading image.  Attached is a diff that  
changes this to black, so you dont see the grey flash at all.  Hope  
this helps. :)

-Mark
-------------- next part --------------
A non-text attachment was scrubbed...
Name: mythgallery_blendfix.diff
Type: application/octet-stream
Size: 465 bytes
Desc: not available
Url : http://mythtv.org/pipermail/mythtv-dev/attachments/20051019/b89adc68/mythgallery_blendfix.obj