How prevent Camera Roll, Tilt or Twist after move from initial to final position

[Anonymous]

I have an assembly that represents a Process Plant and would like make a small video like walk through the plant.
There is no issue on setting all I need, but, if move camera to left or right it twist/roll.
As an example think you driving a car and fix your eye on a house on street, as soon you get closer your car rotate to sky like 100 degrees....
Is there a way to prevent such rotation?

Working with Inventor 2018

[kelly.young · Accepted solution]

Hello @Anonymous here is a previous thread with a screencast I made to animate a camera linked between views.

Inventor studio. Camera along path?

Please select the Accept as Solution button if a post solves your issue or answers your question.

[Anonymous]

kelly.young,

Thanks for video, yes using multiple cameras and moving view seems to work and give some visual control of results.

I spend all afternoon looking for some info about, and nothing, but right after make this thread I found this one

https://forums.autodesk.com/t5/inventor-forum/inventor-studio-camera-animation-camera-rolling-on-sel...

Seems there is trick with planes, they alert about XZ or ZX plane.
Then I made a very simple attempt. Created a rectangular piece of steel on XZ plane with tickness on Y axe, then put a camera parallel to same plane and just move camera on X or Z, and bingo, no twist.

By the way what I´m trying do is put a single camera, 1 spline for target, 1 spline for camera then follow spline. But as is, camera is twisting along path.

Ok, I can use multiple cameras like video, but, is there a way to lock twist when using path mode (spline)?

[Anonymous]

After some more tests, here an update.
If you place camera parallel to any plane (XY, XZ or YZ) and move Camera or Target in any plane direction to set start and finish view there is no twist.
On the other hand, if you reposition Camera or Target in 3nd direction (to set your starting view), them move in any plane direction (to set your finish view) there will be a twist and it can be up to 180 degrees.

By 3nd direction I mean Z axis if I´m in plane XY.

So if there is no way to lock twist/rool, I can´t use a spline path for Camera and Target.

[Cris-Ideas]

Hi,

yes that's how inventor studio works,

I have found it totally useless for animating camera.

I have been sending Support Cases with documentation of this behaviour since AI 2014. I also had very long and extensive exchange of e-mails with developers working on Inventor studio.

They obviously understood what the problem is but also obviously nothing was fixed.

That's how it is with Autodesk. Even if most basic things do not work you should not expect them to be fixed.

What will be fixed does not depend on whether it would be useful for the user but  if it is useful for Autodesk.

Cris.

[Anonymous]

Chris,

I started with Acad R 2.1, so I know what you talking about.
Thanks, now I know it is by design.
So alternative is to use Kelly suggestion.

[Anonymous]

kelly,
Seems I have better movements control with options of SteeringWheels (Full Navigation Wheel & Basic Tour Building Wheel).

I´m doing like your video (in segments and checking Link to View), but using SteeringWheels for movements.
But in rendered video looks camera is closer than it should be, I was expecting a result like yours, I mean wysiwyg.
By the way Walk works fine, but Forward does nothing in rendered video.

So how can I get it as I see on display?

[kelly.young]

@Anonymous Had to lookup the wysiwyg - what you see is what you get! If I remember correctly the view will zoom depending on the overall output size of the recorder. For example if the camera is set and the screen resolution is 1200x900 (for example) and the output is 800x600 it will crop/zoom. Not the best explanation, but haven't really found an exact method to control the camera zooming.

The studio environment is a bit of trial and error setup in my experience. Each animation is custom and I always test a small segment and get that looking as I want and then move forward.

It helps to use set view to camera to continue linking.

Get your zoom dialed in on the first few seconds and then move to the next, repeat. The setup is the most tedious but once you get it looking acceptable, incrementally moving forward gets easier.

Please select the Accept as Solution button if a post solves your issue or answers your question.