Moho Forum

I have been playing around with 3D objects in AS and got freaked out by the level of 3D perspective distortion (see [2] below).

My aim is to have normal perspective, and not 'tower block' style. I am trying to retain perspective, but without the gross distortion along the z-axis.

To demonstrate we have the same 1 by 1 cube (courtesy of the 3D -> Cube menu), which looks & behaves OK when centred [1]. However when moved off centre the perspective is too distorted [2]. I tried making them immune to camera [3], but that just makes them flat unless rotated. And when manually rotated [4], there is no depth.

I only see the correct perspective view - if I also use the orbit tool [5]. But this is not what gets rendered.

Is there a way to alter the perspective depth to match the Orbit view [5] ?



[1] 3D Cube (45,45,0 deg rotation)
[2] 3D Cube (0,0,0 deg rotation + placed Up, Dn, Lt, Rt)
[3] 3D Cube ([2] + camera immune + uniform scale)
[4] 3D Cube ([3] + 30 deg rotations towards 0,0,0)
[5] 3D Cube ([2] + Orbit view)

Thanks

As far as I know, there is no method to change how the view camera perceives 3d objects aside from making it perspective or orthographic. I'm really hoping that they'll upgrade the viewer to make it exist in full 3d space (like a 3d program would) instead of the wacky setup they're currently using. If you really want to see something crazy, take the camera and try to put it inside of a 3d object.

"Distortion" is a result of lens focal length and distance from object. Change focal length (default 60, make it smaller) and distance (higher value = further away) to get the view you want.

slowtiger wrote:"Distortion" is a result of lens focal length and distance from object. Change focal length (default 60, make it smaller) and distance (higher value = further away) to get the view you want.

I stand corrected, wow! I've been using Blender, so I got used to zoom actually moving my camera forward in space. I didn't even consider that they were actually changing the focal length. Good stuff!

dkwroot wrote:

slowtiger wrote:"Distortion" is a result of lens focal length and distance from object. ...

I stand corrected, wow! ... Good stuff!

Good stuff indeed. This has resolved my quandary, although I am still thinking that the default settings are not ideal. But I will have to go and do some learning before I set my guns-a-blazing on that ticket.

Many thanks

The default camera setup exists to get decent parallax in a traditional 2D rostrum camera setup. It couldn't hurt if AS had an option for rostrum or 3D camera setup, so users didn't have to guess at the right settings.

synthsin75 wrote:... a traditional 2D rostrum camera setup ...

Now -there's something else I just learnt. Interesting stuff.

FWIW, you might find these of use too:

viewtopic.php?f=13&t=22835&p=125958 and

viewtopic.php?f=5&t=21113