Mathias Agopian e657921b5a Camera API improvements ...

- Add a "shift" parameter to Camera. This has the effect of translating
  the viewport, without changing its size. 
  This is an effect similar to using a shift lens.

- Camera::setScaling() now takes a double2 instead of double4, this is
  because scaling the result of the projection in the Z direction 
  can lead to very confusing problems -- it will essentially move the
  near/far planes, and we don't want to expose that as a public API.

- setCustomProjection() now allows to set a different projection for
  rendering and culling (useful for e.g. for using an infinite far 
  rendering projection matrix).

2021-03-10 16:01:29 -08:00

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