 | | | Using the FXtree for dirt fixes. | Using the FXtree for dirt fixes. 2004-06-11 - By Luc-Eric Rousseau
Back
Obey matte either takes the alpha from the source, if the image is RGBA, or the
luminance if it isn't. So yes, it can be a gray scale image. If you raster
paint, you could be painting a gray scale image.
Obey matte may be working in the reverse way that you think, make sure to try
the 'invert' button 'output' tab, next to obey matte. It looks like a black
&white square.
To composite two image with an external matte, the Composite With Matte
operator is also available (make sure to set the 'premultiply' setting
correctly.
All of this works, but you may have some workflow nuissance with this presently
if you paint a grayscale matte while looking at another operator in V4.0.
Making a copy of the sequence and working on that is pretty much the simplest
thing to do.
-- --Original Message-- --
From: owner-xsi@(protected) [mailto:owner-xsi@(protected)]On Behalf Of Jean
-Paul LeDoux
Posted At: Friday, June 11, 2004 5:51 PM
Posted To: xsi
Conversation: Using the FXtree for dirt fixes.
Subject: Re: Using the FXtree for dirt fixes.
Thanks a lot for the reply, Luc-Eric, I appreciate the step by step. In light
of your warning, and in the general interest of working non-destructively for
as long as possible, what would be the best method for just painting a black
and white mask and using that in a comp node(Over?).
Sorry for the basic questions, but I've never been certain how exactly the obey
matte inputs work... does it just look at the alpha of the input, or could a
black on white, raster painted clip be piped in? Or is that even the best way?
I keep wanting to plug a weight map into the blending parameter of the Over
node. :)
Thanks again,
Jean-Paul LeDoux
Northwest Imaging & FX
jp@(protected)
-- -- Original Message -- --
From: Luc-Eric <mailto:lucer@(protected)> Rousseau
To: XSI@(protected)
Sent: Friday, June 11, 2004 12:26 PM
Subject: RE: Using the FXtree for dirt fixes.
First you need to ask if you want to use vector paint or raster paint.
Since this is scratch removal, then raster paint is best because all the paint
strokes will be only one frame long.
So you create a 'paint clip' (aka raster paint clip) with the source images.
Then you create a file input for the 'clean plate'. If this clean plate is the
same, but with a different offset, simply do as you did, load it a second time
set an offset.
Double-click that Paint Clip to start painting.
Now select a brush such as the 'Merge' brush. The Merge brush paints with the
pixels from the Merge Source. The clone brush woud paint with pixel from the
same image. Other brushes paint solid colors. You can use the 'brush' tool,
or the 'line' tool to paint.
Right-click on the File Input with the clean plate. In the menu, choose 'Merge
Source'
Now paint on the paint clip : you should now be painting with the pixels from
your clean plate.
You can use the 'bg/fg' button in the FxViewer to see a blend of the merge
source and the paint destination. Right Click on the viewer to start picking a
different merge offset if you need one.
Word of warning : Raster Paint will save the modifications directly on top of
the orginal image, either when you click 'save' on the PPG, or CTRL+S to save
your scene. You may want to back up the original frames if you do not want to
loose them! You would normally use that back up as you clean plate.
-- --Original Message-- --
From: owner-xsi@(protected) [mailto:owner-xsi@(protected)]On Behalf Of Jean
-Paul LeDoux
Posted At: Friday, June 11, 2004 3:05 PM
Posted To: xsi
Conversation: Using the FXtree for dirt fixes.
Subject: Using the FXtree for dirt fixes.
Hey List,
Can someone describe a good workflow for using the fxtree to fix up some
scratches? Essentially, I want to be able to clone from a different frame.
What I've tried so far is to basically load the sequence in twice, with a one
frame offset on one input node. Then combine the two in an Over node. But at
that point, I'm kind of lost on where to go.
I'm thinking I could somehow either paint on the alpha of the offset input, or
create a new paint clip and pipe that into the Obey matte input of the Over
node?
I will be RTFMing, but any ideas would be appreciated.
Thanks,
Jean-Paul LeDoux
Northwest Imaging & FX
jp@(protected)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859 (See http://iso-8859.ora-code.com)-1">
<META content="MSHTML 6.00.2800.1400" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000 size=2>Obey
matte either takes the alpha from the source, if the image is RGBA,
</FONT></SPAN><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2>or the luminance if it isn't. So yes, it can be a gray scale image
.
</FONT></SPAN><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2>If you raster paint, </FONT></SPAN><SPAN class=895145521-11062004><FONT
face=Arial color=#800000 size=2>you could be painting a gray scale
image.</FONT></SPAN></DIV>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000 size=2>Obey
matte may be working in the reverse way that you think, make sure to try the
'invert' button 'output' tab, next to obey matte. It looks like a
black&white square.</FONT></SPAN></DIV>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000 size=2>To
composite two image with an external matte, the Composite With Matte
</FONT></SPAN><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2>operator is also available (make sure to set the 'premultiply' setting
correctly.</FONT></SPAN></DIV>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000 size=2>All
of
this works, but you may have some workflow nuissance with this presently
</FONT></SPAN><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2>if you paint a grayscale matte while looking at another operator
</FONT></SPAN><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2>in V4.0. </FONT></SPAN><SPAN class=895145521-11062004><FONT
face=Arial color=#800000 size=2>Making a copy of the sequence and working on
that is pretty much the simplest </FONT></SPAN><SPAN
class=895145521-11062004><FONT face=Arial color=#800000 size=2>thing to do.
</FONT></SPAN></DIV>
<DIV><SPAN class=895145521-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-- --Original Message-- --<BR><B>From:</B> owner-xsi@(protected)
[mailto:owner-xsi@(protected)]<B>On Behalf Of </B>Jean-Paul
LeDoux<BR><B>Posted At:</B> Friday, June 11, 2004 5:51 PM<BR><B>Posted To:</B>
xsi<BR><B>Conversation:</B> Using the FXtree for dirt fixes.<BR><B>Subject:</B>
Re: Using the FXtree for dirt fixes.<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Thanks a lot for the reply, Luc-Eric, I appreciate
the step by step. In light of your warning, and in the general interest
of
working non-destructively for as long as possible, what would be the best
method
for just painting a black and white mask and using that in a comp
node(Over?). </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Sorry for the basic questions, but I've never been
certain how exactly the obey matte inputs work... does it just look at the
alpha
of the input, or could a black on white, raster painted clip be piped in?
Or is that even the best way? I keep wanting to plug a weight map into
the
blending parameter of the Over node. :)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks again,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>Jean-Paul LeDoux<BR>Northwest Imaging & FX<BR><A
href="mailto:jp@(protected)">jp@(protected)</A></DIV>
<DIV> </DIV>
<DIV><BR> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT:
#000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">-- -- Original Message -- -- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=lucer@(protected) href="mailto:lucer@(protected)">Luc-Eric
Rousseau</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=XSI@(protected)
href="mailto:XSI@(protected)">XSI@(protected)</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, June 11, 2004 12:26
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Using the FXtree for dirt
fixes.</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2>First you need to ask if you want to use vector paint or raster
paint.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2>Since this is scratch removal, then raster paint is best because all
the paint strokes will be only one frame long.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000 size=2>So
you create a 'paint clip' (aka raster paint clip) with the source
images.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000 size=2
>Then
you create a file input for the 'clean plate'. If this clean plate is
the same, but with a different offset, simply do as you did, load it a second
time set an offset.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2>Double-click that Paint Clip to start painting.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000 size=2>Now
select a brush such as the 'Merge' brush. The Merge brush paints with
the pixels from the Merge Source. The clone brush woud paint with pixel
from the same image. Other brushes paint solid colors. You
can use the 'brush' tool, or the 'line' tool to paint.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2>Right-click on the File Input with the clean plate. In the menu,
choose 'Merge Source' </FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000 size=2>Now
paint on the paint clip : you should now be painting with the pixels from
your
clean plate.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000 size=2>You
can use the 'bg/fg' button in the FxViewer to see a blend of the merge
source and the paint destination. Right Click on the viewer to start
picking a different merge offset if you need one.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2><STRONG>Word of warning</STRONG> : Raster Paint will save the
modifications directly on top of the orginal image, either when you click
'save' on the PPG, or CTRL+S to save your scene. You may want to back
up
the original frames if you do not want to loose them! You would
normally
use that back up as you clean plate.</FONT></SPAN></DIV>
<DIV><SPAN class=613301819-11062004></SPAN><SPAN
class=613301819-11062004></SPAN><SPAN class=613301819-11062004></SPAN><SPAN
class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=613301819-11062004><FONT face=Arial color=#800000
size=2></FONT></SPAN> </DIV>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-- --Original Message-- --<BR><B>From:</B> owner-xsi@(protected)
[mailto:owner-xsi@(protected)]<B>On Behalf Of </B>Jean-Paul
LeDoux<BR><B>Posted At:</B> Friday, June 11, 2004 3:05 PM<BR><B>Posted To:</B
>
xsi<BR><B>Conversation:</B> Using the FXtree for dirt
fixes.<BR><B>Subject:</B> Using the FXtree for dirt
fixes.<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Hey List,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Can someone describe a good workflow for using
the fxtree to fix up some scratches? Essentially, I want to be able to
clone from a different frame. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>What I've tried so far is to basically load the
sequence in twice, with a one frame offset on one input node. Then
combine the two in an Over node. But at that point, I'm kind of lost on
where to go.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm thinking I could somehow either paint on the
alpha of the offset input, or create a new paint clip and pipe that into the
Obey matte input of the Over node?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I will be RTFMing, but any ideas would be
appreciated.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV><FONT face=Arial size=2>
<DIV><BR>Jean-Paul LeDoux<BR>Northwest Imaging & FX<BR><A
href="mailto:jp@(protected)">jp@(protected)</A></DIV>
<DIV> </DIV>
<DIV><BR></FONT> </DIV></BLOCKQUOTE></BODY></HTML>
|
|
|