Creation of a video animation in cfx-post

falke126 · July 20, 2012, 13:49

Hi to all,

has anyone created a video animation like this in CFX-Post:

I would like to create a video of a particle flowing to a pipe.
The view point should be from the particle itselves, in direction of the flow.

In other words, I would like to "swim/fly through the pipe".

Best regards,
Hannes

cfdnewbie · July 20, 2012, 13:52

I have created something similar, though its a flow an duct over an object, with the camera following the flow over the object into the wake...

falke126 · July 20, 2012, 14:19

Hi, can you describe the steps, how you did it?

Did you create the frames manually by a script?

This was my first intention.
But there is the problem, that i can´t set the view from the inside of the pipe...

ghorrocks · July 20, 2012, 18:11

You can do this using a key frame animation. It then flies along the reference key frames to generate the animation.

Niru · November 10, 2012, 13:45

I have a transient simulation of 500 s . It is a smoke coming out of a source. I followed the tutorial to do a video.
I want to do a full length animation of the solution for 500s. I choose my full time in time step selector and did a key frame animation for 100 frames. The output video is very fast (2s) and I dont see the full animation.
Also I have output files of every 50s ,even if i choose these intermediate intervals , I dont see the smoke development.
How many frames should I choose? How can a full length animation be done?

evcelica · November 10, 2012, 19:53

If you want to do a real animation of the 500 second simulation in real time, you would have had to output your results files 24 times per second, then you could use quick animation. Each frame would be a results file, which would be played back at 24 frames per second. If you only have results files every 50 seconds, you are not going to get a very good animation. Though that many results files is going to take up a ton of storage, and would take hours to actually make the animation. I usually do time lapse videos where it will play back much faster than real time. Also, I would only output the transient results for what you care to animate, that way the files won't be huge.

July 20, 2012, 13:49	Creation of a video animation in cfx-post	#1
falke126 New Member Hannes Join Date: Oct 2011 Posts: 19 Rep Power: 14	Hi to all, has anyone created a video animation like this in CFX-Post: I would like to create a video of a particle flowing to a pipe. The view point should be from the particle itselves, in direction of the flow. In other words, I would like to "swim/fly through the pipe". Best regards, Hannes

November 10, 2012, 13:45	regarding animation	#5
Niru Member niru Join Date: Apr 2012 Posts: 55 Rep Power: 14	I have a transient simulation of 500 s . It is a smoke coming out of a source. I followed the tutorial to do a video. I want to do a full length animation of the solution for 500s. I choose my full time in time step selector and did a key frame animation for 100 frames. The output video is very fast (2s) and I dont see the full animation. Also I have output files of every 50s ,even if i choose these intermediate intervals , I dont see the smoke development. How many frames should I choose? How can a full length animation be done?

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July 20, 2012, 13:52		#2
cfdnewbie Senior Member cfdnewbie Join Date: Mar 2010 Posts: 557 Rep Power: 20	I have created something similar, though its a flow an duct over an object, with the camera following the flow over the object into the wake...

July 20, 2012, 14:19		#3
falke126 New Member Hannes Join Date: Oct 2011 Posts: 19 Rep Power: 14	Hi, can you describe the steps, how you did it? Did you create the frames manually by a script? This was my first intention. But there is the problem, that i can´t set the view from the inside of the pipe...

July 20, 2012, 18:11		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	You can do this using a key frame animation. It then flies along the reference key frames to generate the animation.

November 10, 2012, 19:53		#6
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	If you want to do a real animation of the 500 second simulation in real time, you would have had to output your results files 24 times per second, then you could use quick animation. Each frame would be a results file, which would be played back at 24 frames per second. If you only have results files every 50 seconds, you are not going to get a very good animation. Though that many results files is going to take up a ton of storage, and would take hours to actually make the animation. I usually do time lapse videos where it will play back much faster than real time. Also, I would only output the transient results for what you care to animate, that way the files won't be huge.