write node behaviour – turn on read file parameter

hi i’m confused with the write node.. while i turn on the ‘read file’ , it will load the images from disk instead of its input, but then why can’t i disconnect the input since it doesn’t need its input anymore ? coz in this stage it will load from disk, why i got error (blank) when trying to disconnect it? is there any good reason? can anyone explain it?
Also why that ‘read file’ only works for reading image sequences, what about .mov ?

thanx

Shooting Car-Greenscreen

Hi guys,

I’m planing to shoot a car-scene. we decided to do it on greenscreen as its the easiest and cheapest way for us we think.
Problem is, that I’m not experienced in whats important to make it feel right.

I would thank you so much, if one could share some experiences with us.

The car-drive will be through open landscape as well as through a bunch of trees and forest.

– What’s the best way to create the shadows on top of the actors for the forest scene?
– How are the reflections usually created on the windows? Background-Plate mirrored with a screen-merge-operation?
– What’s the best way to shoot the background plate itself? Filming out of the car while driving? What are common problems? What do we need to prepare? How is this usually done?

I hope these aren’t too many stupid questions and someone is willing to help me with it 🙂

I thank you in advance! I know you guys are awesome 🙂 Thank you.

Monochrome Node in 64bit osx?

Hi all,
I’m working my way through Steve Wright’s ‘Digital Compositing For Film And Video’ and need to use a ‘Monochrome’ node.
As Nuke doesn’t have one built in, I’ve switched back over to Shake for this. Which seems bizarre as Nuke is clearly the way forward, and a monochrome node doesn’t seem overly complex.

I’ve found the NFX plugin pack, but it doesn’t seem to be compatible with the 64bit osx version of Nuke 🙁

Any advice, tips or suggestions?

Thanks in advance guys :fingerscr

Applying lens distortion to 2D trackpoints in Nuke?

Hi there,

Just wondering if anyone has had any experience with applying lens distortion to actual trackpoints in nuke? Basically, we have shots that need tracking, but we don’t have lens grids shot yet, so I was hoping to track the plates without undistorting them and then, once we have grids shot, undistort both the plates and the tracks….

Any help would be appreciated….

Cheers

B

alpha / color / color+alpha

Hi,
Is it possible to suppress the alpha directly from the footage in Nuke ? (I see nothing in the read node.)
in combustion you select the footage and can choose : color or alpha or color+alpha.
Thanks

Changing the “set default value” on a gizmo

Hi to everyone,

this is my first post here and I hope that this hasn’t been anwered already. I searched the forum for quite a while without finding and anwers so if I’ve missed it I’m sorry 🙂

I’m making my first gizmo and I set some starting values on the slider to have a nice effect when you load the gizmo and everything is fine. The problem is when i try to set back to default with the ctrl+click.
The sliders go to 0 while "my" default value is 1.5

What can i do?

thanks

Car Light Streaks

Hi everyone,

Do you have any idea how to create these in post, preferably in plain Nuke without plugins?

Thank you in advance,

Tassos Ringas

how save layout and wireremoval problem

Hi, this is very simple question, but couldn’t find how to do it. I want to save my layout with my current project, how to do this? when i reopen my project , it always back to default layout. Also the framing in my node graph (pan/zoom) always go back to zoom all. How to retain the last setting.

Other question is about wire removal, when connect furnacore wire removal to a Read node (dpx), i have no speed porblem when editing the point control (i turn off the result in the wireremoval node -> output set to SOURCE). But if i connect this wireremoval node to a Write node with ‘read file’ turn on, reading the same dpx sequence (so reading back my pre-rendered images), i found it very very slow when edit the point control . If i checked the write node by scrubbing in viewer, i have no problem with the speed. Anyone has this problem ?

thanx

unwrap environment from track and pan

Hi there, I’m kind of new to nuke, but learning very quickly and really enjoying using the software, but I have a question about a certain production technique.

I was watching the following tutorials, and this one seems great for unwrapping an environment painting changes in photoshop and the re-wrapping onto a sphere within nuke, but the camera is in a fixed position only allowed to pan and not track:

http://www.youtube.com/watch?v=WLkXr…layer_embedded

This one seems great for painting out issues if the camera is a simple track (i.e. rig removal):

http://www.youtube.com/watch?v=7l375…layer_embedded

So my question finally is, how would you unwrap an environment from footage where the camera is both panning and tracking, so that changes can be painted and then re-projected, or am I totally going about this with the wrong method?

Thanks in advance

Arvind!

Cineon and HD DSLR videos

Hi you all!
I’m experiencing Nuke lately for little compositing and color correction works, in the past I used Premiere and AE.

I’ve always found this "cineon" conversion, but I sincerely can’t understand what it is used for… I’ve read this is a format helpful for working with "film" native videos, so why I should use it for videos taken with DSLR (which comes in .avi format)??

And more, I’ve seen videos are more "cinema looking" after I convert them to cineon, but is it wrong to make this conversion for "improve" a color correction .avi/mpeg/mov destination files?

I confide in your experience, thanks in advance for answers!:)