So I linked to a QT and placed it in my timeline and as I scrub
through it does not clip however when I process or park on a frame it
clips off anything over 100. I'm going to follow Victors advice and
create a test image & QT and measure in the values in DS.
jon vargo
On 1/24/06, Benoit Lauzon <blauzon(at)softimage.com> wrote:
>
> Victor's problem was also that the QT ref didn't look like the AVI ref
> for the same levels value (something I could not repro on my side).
>
> Ben
>
> -----Original Message-----
> From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM]On Behalf Of
> Victor Wolansky
> Posted At: Tuesday, January 24, 2006 11:40 AM
> Posted To: ds
> Conversation: importing quicktime melon scratcher
> Subject: RE: importing quicktime melon scratcher
>
>
> I have the same problem; I do not have an answer yet. I've tried to change
> the settings from Video to Graphics when I import, but see no change. My
> problem was related to the export options of the DS, that when you export a
> Quicktime reference there is no option to change that to Graphics if you
> need it. Also, I think when you import, DS do not respect your option of
> Graphic and Video. I had to move on with another stuff so I did not had the
> time to keep investigating this. I can't blame DS in this case because I
> have not finished my tests on this. But I know that something is wrong with
> the import and export settings...
>
> If you see difference on when you import in the DS my suggestion is try to
> create something like color bars where you know the exact value of the
> color, and then import it in to the DS and measure that color to see if has
> changed. If you are importing with "graphics settings" then colors and
> levels should remain the same.
>
> You can always tell to your client that DS is so good that is making an auto
> color correction when you import :-)
>
>
>
> Victor Wolansky
> DS VFX Artist
> e3post
> WEBsite
> Demo Reel
> 815 Slaters Lane
> Alexandria. VA.
> 443-797-3507
>
>
> -----Original Message-----
> From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf Of
> Murphy, Paul
> Sent: Tuesday, January 24, 2006 11:13 AM
> To: DS(at)Softimage.COM
> Subject: RE: importing quicktime melon scratcher
>
> Didn't Victor have a problem like this a week or two ago??? Victor
> Wolansky. I thought he sent it to support - Didn't hear what the
> outcome of the discussion with support was. Perhaps that solution is
> what you need Jon.
>
> Murf
>
> -----Original Message-----
> From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
> Of Benoit Lauzon
> Sent: Tuesday, January 24, 2006 8:49 AM
> To: DS(at)Softimage.COM
> Subject: RE: importing quicktime melon scratcher
>
>
> Hi Jon
>
> Maybe it's a result of a RGB->YUV conversion?
> If it is, you should see the same shift happening "live"
> when processing a linked clip (not captured).
>
> Ben
>
> -----Original Message-----
> From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM]On Behalf Of
> Jon Vargo Posted At: Monday, January 23, 2006 6:51 PM Posted To: ds
> Conversation: importing quicktime melon scratcher
> Subject: importing quicktime melon scratcher
>
>
> hey everyone,
>
> I have melon scratcher of a problem importing quicktime movies into the
> DS and I'm wondering if anyone else has seen this.
>
> So I got this client who took their whole show from FCP to After Effects
> and rendered out the whole 2 hour 720p show in 10gb chunks with the
> Animation codec. Now we are being asked to get their show into the DS
> and color correct.
>
> When we imported the QTs with the "graphics" option selected in the
> capture setting there is a noticable gamma shift and the whites are
> clipped at 100. So we tried capturing a QT with the "video" option
> selected and the result was the black and while levels were stretched
> out of spec. Now we looked a QT in after effect and it looks fine.
>
> its my understanding that "graphics" is considered RGB color space while
> "video" is considered YUV.
>
> So we tried a none codec, Bluefish 4:4:4 BV10 codec, and a tga sequence
> and got the same shift. Then we tried rendering the same QT with the
> Blackmagic 2vuy codec and got a better result with the gamma shift but
> it seems to be compressing the whites to under 100.
>
> Is the DS interpreting the RGB quicktimes funny? Has anyone else noticed
> this? am I missing a setting deeper than the capture settings?
>
> thanks for any ideas,
>
> Jon (scratching my aching melon) Vargo
> Video Arts SF
>
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