0% Opacity... Isn't !!!

[Dry Biscuit]

Hi, had a search on the forum but couldn't find any reference to this at all.

Has anyone else noticed or suffered from this....

Place a 1920 x 1080 HQ clip on any track. Put a short black colour matte in front of it (say a couple of second). Take the clip opacity (not the matte) down to 0% at the first frame of the clip and then up to 100% 50 frames in or so (in other words a bulk standard fade in).

Now in theory you should get a couple of seconds of black video (the matte) and then a fade into your clip. However if you go to the first frame of the clip and sit in a dark and depressing room like I do so I can guage brightness and contrast levels better you will see that on the first frame you can actually see the clip (albeit very low opacity but it's still there).

I would have expected 0% to be just that - i.e Nothing or black video??

Am I missing something? - Oh I should point out I'm referring to the output monitor via the HD Spark not the Edius interface player window.

There are numerous work arounds for this but I'm curious if anyone else has spotted it or has caused them problems?

I haven't tried it yet on DV footage so I can't confirm or deny if it's there on an SD project.

Thanks

Mark

[GrassValley_BH]

If you have...
[black matte][clip with ramped transparency]
then yes, you should get black for the matte's duration, then you'll play a few seconds of black, then fade into the clip.

However, if you position the play cursor at the beginning of the clip (and not the matte), you're going to see the clip fading in, because it's already fading in unless you add more opacity nodes and "hold" the 0 down at the beginning of the clip.

[Dry Biscuit]

You're not wrong !!! - Thanks Brandon