How much does the“auto vertical tilt correction”plugin cost?

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How much does a plug-in for a camera cost like in 3D max “auto vertical tilt correction”? Has anyone ordered plugins for Houdini?
Edited by iskan - Nov. 3, 2019 08:57:26

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You can offset the camera using “screen window X/Y” in the camera settings.
https://procegen.konstantinmagnus.de/ [procegen.konstantinmagnus.de]
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Konstantin Magnus
You can offset the camera using “screen window X/Y” in the camera settings.
Shift “screen window X / Y” only for the frame, and if animation, you need “auto vertical tilt correction” for architectural animation-visualization.
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You can derive the shift amount from the tilt angle if you know it. An expression can be used using the tangent of the angle to set the screen Y shift:
ch('resx')/ch('resy')*ch('focal')/ch('aperture')*tan(ch("tiltx"))

The hard part, if you already have a camera animation, is to remove the tilt and put it back on the camera.

If you are animating your own camera, you can simply animate the tilt angle channel instead of the rx channel. It gets complicated if you are using lookat or other constraints.
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jsmack
You can derive the shift amount from the tilt angle if you know it. An expression can be used using the tangent of the angle to set the screen Y shift:
ch('resx')/ch('resy')*ch('focal')/ch('aperture')*tan(ch("tiltx"))

The hard part, if you already have a camera animation, is to remove the tilt and put it back on the camera.

If you are animating your own camera, you can simply animate the tilt angle channel instead of the rx channel. It gets complicated if you are using lookat or other constraints.
Can you give an example of how you do this in hiplc?
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This is a very simple example. No automatic transform cracking.

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jsmack
This is a very simple example. No automatic transform cracking.
Thank you, super everything, you're the best
Edited by iskan - Nov. 3, 2019 13:16:53
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This is exactly what I'm looking for as I do archviz and motion graphics this is a must for me. Thanks!

Is there any way in houdini to have a custom camera with this functionality?
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jsmack
This is a very simple example. No automatic transform cracking.

Where did you get that formula? I've been struggling to find exactly that for quite some time, pretty clever sir!
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