Blender Git Loki

GPencil: Fix unreported error exporting to PDF/SVG with animated camera

Before, the camera parameters were calculated only for first frame.

If the camera is animated, these values need to be recalculated in order to get the new camera view position and export the strokes as expected.

Also fixed the export of PDF when the view is not in camera view. PDF export, needs to be done in camera view.