RE: resize node in FX tree

["Michael Klein" <forum(at)virtualrepublic.org>]

I tried to connect a secound resize node to the first one and it seems to force the correct Y output then. But is this the right result we expect?

 

Michael

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Luc-Eric Rousseau
Sent: Friday, September 30, 2005 9:55 PM
To: XSI(at)Softimage.COM
Subject: RE: resize node in FX tree

Things should always work the way users expect, but sometimes implementation gets in the way.

 

The output side of the operator is calculated by the algorithm, it is the true size that the effect will produce given its input parameters.  The Resize node is just a different UI on the transform 3D, so when you put an exact pixel value what it does is in fact figure out the right numbers to poke in a transform matrix to produce the output.  The image size produced is the result of that matrix transform, not the number you entered you entered in the PPG.  It must work this way because I need to stamp out any time that the results are not correct, and not hide the bugs by forcing the output to exact pixel.  Which would give an image the right size, but with some aliasing garbage or missing lines. 

 

I'd like to have clear repro steps on how to have it not work right, so we can address any remain issue.

 

Note that you need to try this with a scene created at least in XSI 4.2, because the resize node checks the scene version and emulates old bugs in order to maintain compatibility.  If you worked around a bug, for example by adding 1 to the desired size, I must maintain that behaviour in existing scenes.  Cuz I'm that nice of a guy.

 

 

------------------
Luc-Eric Rousseau
Team Leader, User Interface
Softimage|XSI

 

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Robert Moodie
Posted At: Friday, September 30, 2005 2:51 PM
Posted To: xsi
Conversation: resize node in FX tree
Subject: Re: resize node in FX tree

There was that old one - where absolute pixel sizes were 1 pixel wrong, but I haven't seen it recently.

 

In fact, I always wondered how you got rounding errors on pixels. Aren't they always integers?

 

 

----- Original Message -----

From: Luc-Eric Rousseau

To: XSI(at)Softimage.COM

Sent: Friday, September 30, 2005 2:31 PM

Subject: RE: resize node in FX tree

I have a code defect logged by Kris Rivel against the Resize node, but we couldn't reproduce it. No doubt this would be a simple math rounding error, so it must be specific to some source image size. 

 

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Luc-Eric Rousseau
Team Leader, User Interface
Softimage|XSI

 

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Michael Klein
Posted At: Friday, September 30, 2005 2:29 PM
Posted To: xsi
Conversation: resize node in FX tree
Subject: RE: resize node in FX tree

Did you also checked Apply Crop in Output Crop [720 486]?

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Kris Rivel
Sent: Friday, September 30, 2005 7:52 PM
To: XSI(at)Softimage.COM
Subject: Re: resize node in FX tree

Transform3d doesn't work I don't think.  How do you set it to 720x486?  I tried adjusting the y scale to a value of .8 which it says is 720x486 but clearly its now too squashed.

Kris

Michael Klein wrote:

So what is the result at the end when you go through Resize or Transform3D?
Do you get visual problems, fragments or is the color depth of the original
input messed up?

When I try here I don't see any problems I know from Tint here ...

-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
Kris Rivel
Sent: Friday, September 30, 2005 6:25 PM
To: XSI(at)Softimage.COM
Subject: Re: resize node in FX tree


No floating support unfortunately.

Kris

Oscar Juárez wrote:

  

Talking about that... it doesnt handle floating point images right?
i loaded an hdr image resized it and boom i had an ldr.

am i right or im missing something.

sorry to hijack the thread. v 4.2 btw

Oscar


Michael Klein wrote:

    

Tried to use Transform3D instead?
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On 
Behalf Of Kris Rivel
Sent: Friday, September 30, 2005 3:22 PM
To: XSI(at)Softimage.COM
Subject: resize node in FX tree


Any chance the resize node in the FX Tree could be fixed!!!  That 
thing is
driving us nuts for the past few versions of XSI.

Kris


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