Changing Normalized Viewport Rect Coords at Runtime?

I'm curious as to why I'm able to adjust the camera.rect.height value, but camera.rect.top is ready only.

read only`s need to have their value cached in an equivalent type. the read only value can the n be passed to the cache to manipulate it in some way. once the manipulation to the value is achieved, you can pass it back through the specified matching type. The same issues arise when trying to do this with any read only type in C# not only Unity3D. I`m willing to hedge a bet that you may have already come across this with anything based around altering something like a gameObject`s transform.position transform.position.x`s, for example, position is locked inside the read only type, we cant directly access it, so we have to cache "transform.position" to something like a vector3(or exactly like one, if you like, like). Once we have this value in the Vector3 typed cache you can obviously manipulate the positional values of each vector axis (x,y,z) as you are in control of that Vector. Once you have changed the single value you wanted to change this can then be passed back to the read only type in the same way you cached to the vector in the first place , just reversed. Anyway, no doubt I have brought further confusions using the Transform class as an example/metaphor, though the answer is still valid to your Camera class troubles. What Mike 3 has written , does indeed and very simply solve your problem...as whyy would you fell more comfortable controlling the top alone over the entire rectangle?( ...just a thought...)

Take care bud and thanks for reading, hope something in there makes some sense. gruffy