Hi Martin,

> To be able to create an image plane in a perspective view only, which can then
> be rotated so as to be able to match up to straight lines and angles, enabling
> the end-user to be able to better approximate how far certain details protrude
> that are obscured from the normal flat 2d views

I don't really follow the rotation part of what you're describing here.

Normally that kind of perspective matching mechanism is a function in rendering or animation programs to make the virtual 3D camera line up with the position that the actual camera was at when taking a particular photo or video - that's so that newly rendered content can be added to the image.

It's a pretty involved process - there's a solver mechanism involved which may involve you drawing reference lines or picking reference points within the model and then the result of that is a camera position for where to put the camera for the 3D view which should then be locked in place and not free to rotate around anymore.

In order to implement that in MoI would require quite a lot of new systems to be implemented - a new system for applying an image onto the viewport that stayed as a kind of billboard always flat to the view, some UI mechanisms for managing those bitmaps, some UI for managing the perspective match process, some mechanism for locking the 3D view in place and UI for that, etc...

Really the biggest problem with all of that stuff is all the various chunks of UI that would be required - UI development tends to be very time consuming for me because I try to manage it in such a way to avoid things getting bloated or too complex. So usually I'm quite conservative about things that would require a lot of new UI to control it.

So anyway because of all that various stuff it's not too likely to be something added to MoI soon anyway.

- Michael