Use reference instead of pointer for SetSingleTarget()
Should not be used from gameDialog, so it can be private.
Draw extra stereo frame when computing shadow map
Move viewport settings out of gameDialog::UpdateProjection
Simplify SetViewport()
Remove common.OvrDistortion from shaders where it wasn't used
Move barrel distortion from SimpleTexture to its own class

Take it away from common.glsl, as it is not used commonly.
Prepare the barrel distortion shader for using local uniforms

Instead of the parameters in the UBO.
Move distortion control from common uniform buffer to barreldistortion
Add extra drawing of screen after left eye render

An old texture is used, making the display flitter
Best yet, but doesn't look good when looking downwards.
Using quaternion delta

This helps for the problem looking up or down, where the Gimbal lock
made it impossible to compute proper yaw and pitch delta based on
Euler angles.
Update the TODO
Clean up some remaining euler angles
Move shadow map computation first

Update FPS to use longest drawing time when stereo mode
Remove debug messages for temporal reprojection
Missing picture for weapons was drawing black square on right
Merge branch 'TemporalReprojection'