Oops, I just realized that the video fade actually controls the opacity,
(alpha) and isn't really a gain as such. When the alpha goes to 101, it
wraps around and perfectly explains what the Raffaella saw (and I can
replicate). I have just applied a patch to fix this.
Pierre.
Pierre Marc Dumuid wrote:
Huh,
depends on how you look at it. I personally like to be able to gain
above 100% (which results in the user needing to be wary of
wrap-around), but at the same time, I don't want it to saturate
because I know that for saturation, the following code:
value = value > 255 ? 255 : value;
needs to be executed on every pixel on every frame, which I thought
may slow things (not sure how much though). Wrap-around can results
in some wierd effects as well.. (which some people might call
"artistic" :) )
Pierre
Herman Robak wrote:
On Sat, 30 Sep 2006 01:07:28 +0200, Pierre Marc Dumuid
<[EMAIL PROTECTED]> wrote:
Which version of cinelerra are you using (community or HV, and if
community, which SVN revision number).
In the latest version of cinelerra-CV, the automation ranges have
recently been fixed (within the last few weeks)
if you are using an older version of cinelerra-CV ensure that your
automation range, (the textbox to the left of the "Selection Start"
box) is 0-100 when editing video.
if it is say 0-700, the fade curve could possibly be cycling through
7 times,
Just getting this straight: Wraparound is a bug, not a feature, right?
If Cinelerra does a wraparound on brightness or colour values, that
behaviour should always be filed as a bug. Cinelerra should saturate,
not wrap around.
--Herman Robak
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