[Bf-committers] Blurred Edge for Sweep Effect

Johnny Matthews bf-committers@blender.org
Sat, 26 Jun 2004 13:01:50 -0500


Yeah, There is the problem you mentioned. I hope to come up with a
solution to it soon.

On Sat, 26 Jun 2004 15:56:07 +1000, Matt Ebb <matt@mke3.net> wrote:
> 
> 
> On 26 Jun 2004, at 2:58 PM, Johnny Matthews wrote:
> 
> > Here is the latest movie from my work with the new sweep code
> >
> > http://www.gvc.net/~jmatthews/blender/sequence/sweeps_2.mov
> 
> Looks pretty cool so far!
> 
> > Feedback Please!!
> 
> I've found that in your example video, some of the soft-edged wipes are
> 'jumpy' - they seem to appear part way across the screen at the start
> of the transition, instead of smoothly fading in from the side. Better
> than this verbal explanation is a picture:
> 
> http://mke3.net/blender/etc/wipe_soft_jumpy.jpg
> 
> Frame T is the start frame of the transition. In T, T+1, T+2, the
> distance travelled by the blurred part is relatively small - the inner
> edge of the blur travels by only a few pixels each frame. However from
> T-1 to T, the there's a large distance between the edge of the frame
> (T-1) and the edge of the blur (T), which makes it seem to jump out
> from the side at the start of the transition. Ideally, the edge of the
> blurred area should begin at the edge of the frame, and smoothly travel
> across from that position.
> 
> As has been mentioned on the forums, I also recommend calling it 'Wipe'
> rather than 'Sweep', as Wipe has been the industry standard term for
> this for decades.
> 
> Cheers,
> 
> Matt
> 
> 
> smime.p7s - 2K
>