Controls how much of the allocated display texture should be used for rendering.
Valid range is 0.0 to 1.0. This value can be changed at runtime without reallocating textures. Therefore it is useful for dynamically adjusting render resolution. Changes to this value take affect the next time the scene begins rendering (after LateUpdate).
Some display providers may ignore this value or clamp it.
This value is not supported with the legacy deferred renderer. Attempts to change the value in the presence of a camera using deferred rendering will be ignored and an error will be logged.