RoosterDragon a2ed4fd5f9 Avoid redundantly setting viewport parameters in BeginFrame. ...

- Cache the old resolution, scroll and zoom in BeginFrame, and don't bother updating the viewport parameters again until they change.
- Pass around scroll as an int2 to reduce the number of back-and-forth casts.

2014-06-10 17:06:25 +01:00

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