<p>Go to the writer properties and change the "Frame Range" value from "Project frame range" (or less probably "Manual") to "Union of input ranges".</p>

<p>This, as the name indicates, determines the frame range as the union of inputs you pass to the writer.</p>

<p><a href="https://i.sstatic.net/boWYU.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/boWYU.jpg" alt="Project frame range"></a></p>

<p><a href="https://i.sstatic.net/2fhM3.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/2fhM3.jpg" alt="Union of input ranges"></a></p>

CC BY-SA 3.0
2017-11-26T13:19:05.973Z
2017-11-26T13:19:05.973Z
quaeched
<p>How do I set the frame range to automatically adjust to current video input?</p>

<hr>

<p>Explanation:</p>

<p>I did some color correcting in Natron and I wanted to reuse the project for other video files so I changed the reader input destination. However, the second video was rendered with the frame range of the previous video. This resulted in, in this case, wastefully long render process as the original video was longer, flow of errors and practically useless output.</p>

<video><video-editor><render>
Natron - automatically adjust render frame range
quaeched
# Natron - automatically adjust render frame range

(Asked by: username_0 on 2017-11-26)

How do I set the frame range to automatically adjust to current video input?

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Explanation:

I did some color correcting in Natron and I wanted to reuse the project for other video files so I changed the reader input destination. However, the second video was rendered with the frame range of the previous video. This resulted in, in this case, wastefully long render process as the original video was longer, flow of errors and practically useless output.

**Tags:** video, video-editor, render


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## 1 answers

### Answer by username_0 on 2017-11-26. Score: 1 | Accepted answer

Go to the writer properties and change the "Frame Range" value from "Project frame range" (or less probably "Manual") to "Union of input ranges".

This, as the name indicates, determines the frame range as the union of inputs you pass to the writer.

[![Project frame range](https://i.sstatic.net/boWYU.jpg)](https://i.sstatic.net/boWYU.jpg)

[![Union of input ranges](https://i.sstatic.net/2fhM3.jpg)](https://i.sstatic.net/2fhM3.jpg)


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