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I'm trying to get a background material (flag) to move with the wind and whenever I render a specific frame, it's OK. But if I render as a video (xvid), it stays completely still. Any idea why this might be? Attached is the .blend file.

Thanks

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  • $\begingroup$ When rendering an animation you need to press Animation instead of Render of pressing F12. (found here i.imgur.com/P7Yaitg.png) Did you press Animation or something else? $\endgroup$ – Luka ash Jan 3 '17 at 21:17
  • $\begingroup$ Yes I pressed Animation. Good point though. $\endgroup$ – lakerice Jan 3 '17 at 21:29
  • $\begingroup$ Is this what it's supposed to look like? sendvid.com/6nid80fq $\endgroup$ – Luka ash Jan 3 '17 at 23:41
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Sorry for the misunderstanding - you meant that the flag does not move. I thought you meant the image. It is good habit to cache all physics simulation before rendering, so the renderer has all the data needed to render the animation. Go to the Physics pane with the flag selected check 'Disk Cache' and after that hit 'Bake' in the Cloth Cache tab. After completing the caching process you can render and everything works just fine. It should look similar to the image below before rendering

enter image description here

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  • $\begingroup$ It worked! I never knew that about physics...man what a lifesaver! $\endgroup$ – lakerice Jan 4 '17 at 0:31
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I did select RGB as an output color format. Not sure why it is not selected by default, but it solved the problem for me. I can open it in the movie clip editor in Blender just fine. What software did you use to watch the rendered clip?

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  • $\begingroup$ Thanks for checking it out. I used VLC media player. It definitely played properly but the flag didn't render with the wind effect (just stayed as a plane). Are you saying when you selected RGB as an output, it allowed the flag to have motion? $\endgroup$ – lakerice Jan 3 '17 at 19:50
  • $\begingroup$ Could you send me a screenshot? $\endgroup$ – lakerice Jan 3 '17 at 19:59
  • $\begingroup$ misunderstanding - I posted the solution below $\endgroup$ – adegner Jan 3 '17 at 23:33

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