I cannot kind find any serious documentation on [camera] object.

The patch below spells out my dilemma:

If I have a sphere @ [TranslateXYZ 0 0 0] and then use the [camera] to go "right" around it, it behaves just as I would expect.

If I wish to create a Ferris Wheel (so to speak): all hell breaks loose.

e.g.

I have instead [TranslateXYZ 0 1 0] - and I use [RotateXYZ] to make the sphere rotate just like it were a carriage in a Ferris Wheel.

Next - I try rotate "right" with the camera. I would expect it to behave as if the camera were on a giant horizontal circle around the 'ferris wheel' and moving around it. A bit like a person literally walking around one, but only higher than ground level.

Instead it seems to go mad and behave in - to me at least - an unintuitive manner.

I can't work out why?

Anyone who can put me out of my misery would be gratefully admired! Thank you for the kind answers to my recent questions, and any possible ones to this one.

http://www.pdpatchrepo.info/hurleur/In_Orbit.pd

Do not use [camera]. Use [view< : have a look at the help file of [gemwin].

Thanks dwan... I haven't had enough time to devote to this.

But to anyone else curious about this topic - this seems to be of help GEM/examples/02.advanced/03.View_OSD

will investigate further... Certainly not the most intuitive aspect of GEM, but perhaps that's my lack of 3D modelling experience coming through.

Thanks for the help.

Has anyone got any more insight to this? Days of looking at code and I still can't get my head around it. The problem is still as stated in my OP.

Here is the code I am playing with at the moment.

Trying to get the view to go around the two spheres.

http://www.pdpatchrepo.info/hurleur/rotate_around.pd

hi

http://www.pdpatchrepo.info/hurleur/rotatearound.pd

You are the man!

thanks - it's taken me ages - think I'm getting my head around it now. Probably will look back soon and this - how could I not understand that?!

Thanks for all your help dwan.