The image below shows the video sequence in the sequence editor, it has nothing to do with the nodes. In order to show the output image you need to connect the Color Balance-node to a Viewer-node. Then split one of the editors, enable the UV/image editor and - in the bottom field - switch to Preview node.
Can’t it be something with your video sequence, considering the line is present in the input?
This is one of the most frustrating parts of Blender’s sequence editor. It won’t be able to do a proper playback if the resolution of the sequence is too high. However, you can render a smaller version of the sequence and use it as a proxy. That way the playback will be much faster.
Your image resolution is small (640x360) which is reflected in the viewer node. I guess that adding a distort–>scale–>render size node would improve this.
I’ve adjusted the color balance of the movie and it is showing the color changes in the compositor node, but not in the movie below. Any ideas why?
Yeah, because what you see as an image preview in the VSE does not use the same input as the compositor viewer node. If you want to see this then render out a frame as a still (or a movie if you wish) and then add it as a strip into the VSE.
Another possibility would be to add the scene directly from the compositor to the VSE. You need to have two different scenes though.
I’ve checked to see if my movie was the correct aspect ration and it is, so I’m wondering why there is a white strip below my movie?
input/outupt mismatch maybe?
The movie was animated at 24 fps but it is playing really slow when I preview it. Any ideas why and how to fix this?
Render it out as stills, import the stills in the VSE, render out a movie and try playing that back. If you have a slow pc or a very complex scene realtime playback might not be smooth enough.
Thanks to the both of you. I have made a lot of changes and seem to be making progress. Couple of more questions though.
Blender Crashing When Rendering Animation
Just to be clear, I have imported a .mov file and that is what I am compositing. It’s not a 3D scene in Blender. I set up the render to render a QT movie and the appropriate settings. I then went to the top of the node editor and selected (Render > Animation) and Blender crashed. I have a lot of ram (12 GB) so I am wondering if there is something I am missing or if you need to render some other way?
Playback with Compositing Changes?
2. I did as you said and split the view and opened the UV Image Editor and selected the “Node Editor”. I then could see my color changes, but not in real time. Is there no way to play the .mov and be able to preview the node color changes?
Sounds like it could be a problem with your QT codecs. Assuming you’re running Windows or Mac, have you installed the Quicktime player? If so, what architecture are you running, 32 or 64? Because currently the QT codec is not fully supported for 64-bit systems, at least not on Windows/Mac. You could try another format, AVI or H.246 for instance.
I did as you said and split the view and opened the UV Image Editor and selected the “Node Editor”. I then could see my color changes, but not in real time. Is there no way to play the .mov and be able to preview the node color changes?
Unfortunately that’s not possible at the moment. There’s currently a project under way to implement OpenCL into the Node Editor. Once that is done, real-time previewing will/should be possible.
Actually you see the changes you make in the compositor in real time in the UV image editor provided that you set the viewer node output as the UV image editor input. It might take a few seconds if you don’t have a very long noodle but it’s pretty much doable.
You can also activate the backdrop in the compositor window for previewing purposes (that’s my personal preference).
So the preview works with stills but real time playback straight out from the compositor is currently out of the question.
