Nov 17

Rotopaint

Posted in: NUKE from The Foundry
Hello, someone can explain me how do i subtract a mask from other, like Flame or smoke compositing? Is there how i with a mask delete part of other? This is very important for a hard rotoscoping!!!

thank you

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Nov 17

Zdepth

Posted in: NUKE from The Foundry
I have a sequence ranging from 120-240. I’m not receiving an error with the copy channel but I am not seeing the object in the focus plane setup.

I made sure that the diffuse layer had Zdepth on for render so it’s not that. Never had this problem before. Also I’m trying to figure out how to get my plate to not be affected when I do use zblur.

Attached Thumbnails

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Nov 16

S-log lut in Nuke

Posted in: NUKE from The Foundry
Hi, I’m about to receive some s-log footage, from a f35, it was captured with a blackmagic via sdi dual link from the recorder, as far as I know not the best way to do it if you’re going to do a filmout, it’s contained in blackmagic codec 444 10 bit uncompressed .mov, and it’s supposed to have all the sensor’s data as s-log footage. Has someone used this kind of footage in nuke, I know I need to get an s-log to lin conversion, I’ve been searching the web but there is not too much info about it, what would be a good workflow? does any body have the s-log lut, or any advices, I’ve read the s-log white paper but I can’t figure out how do I apply those formulas.

thanks in advanced for any help.

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Nov 16

Moving from Inferno to Nuke?

Posted in: NUKE from The Foundry
Hey everyone,
What is the transition like to Nuke from Inferno? I’ve dabbled in Nuke as of late and I have a solid understanding of how things work/where to access in Inferno and I’ve found that it’s pretty similar in some respects, and very different in others. I’m just wondering if anyone else here has made the transition before and what did you find was easy/hard about the transition?

Thanks!

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Nov 16

Move knob position with python?

Posted in: NUKE from The Foundry
Hi,

Maybe it’s really easy but I can’t find the good way.

I’m doing an interactive gizmo and I need to manage a lot of knobs.

When I create different knobs (on a group) directly with python by default the new knob is directly positionned as the last one. (why not…)

I would want to know if it’s possible to move this knob? (as the second position in a list of 10 knobs for example)

I really need to find how can I do… So if you have any Idea ?
(except remove all knobs and recreate them in the good order ;))

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Nov 16

roto shapes linked to 3d objects

Posted in: NUKE from The Foundry
Lets say I have an animated object that was rendered from the 3d dept. moving around the frame, X & Y only. I want a pass that I can hook a roto shape to, so that my roto shape sticks to the movement of my animated object.

Would a position pass allow me to do this? Some other type of pass?

Thought about linking a 3d tracker object, and rendering that out, then tracking that marker in Nuke, but would like a more integrated workflow, if possible.

Any ideas?

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Nov 15

settin shot size

Posted in: NUKE from The Foundry
for some reason i bring in my hd footage and all is good but when i do some other operation the size goes back to 2kfootage how can i make sure i can set the shot up for hd an not have to worry this 2k bounding area comes up. thanks
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Nov 15

Setting Format or size with python?

Posted in: NUKE from The Foundry
I know I can add a format by doing nuke.addFormat(‘2000 1000 myNewFormat’)
What the correct way of selecting a format from the list?
Is there a way to set width and height directly instead of creating temp format?

Is it possible to set the views to stereo in python (I don’t need the cameras or viewer, I juts want to simulate pushing the Set up views for Stereo button)? I can set the Use Colours in UI button but the pushbutton setlr doesn’t seem to work.

Thanks.

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Nov 15

NukeX Opening Scripts in Nuke

Posted in: NUKE from The Foundry
Hey there,
So I’m using NukeX 6.1v2 on Mac OS X 10.6.4, and when I go File:Open…, the script I open opens in a new instance of regular Nuke (not NukeX). What’s the deal? I feel like this just started today, but I can’t imagine why.
Also, is there any way to open the new script in the same window (or at the very least close the existing window and open a new one)? It’s annoying to have to manually quit the old Nuke.

Cheers!

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Nov 15

Color Expression Node, replace pixels value

Posted in: NUKE from The Foundry
Hi everyone,

I have read some topic about this subject but don’t find the solution about my problem (this one : http://www.vfxtalk.com/forum/nuke-cr…de-t17068.html )
I know we can add an "if" condition into the expression node with this syntax : if ? then : else and i would like to use it to replace some pixels value.

For example in the red channel i’ve tried that :

r>=1 ? 0 : r so i just want to replace the burned value by 0

The result is all pixels to 1 in the red channel

Here a copy/paste of the node :

Code:

Expression {
 expr0 "r>=1 ? 0 : 1"
 name Expression1
 selected true
}

I know in Fusion, we can use the Custom tool with this expression :
if(r1>=1,0,r1).

If you have the solution… thanks a lot !

Nuke version 6.1 v2 64bits

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