


New aov_write_vector shader: This enables the writing of vector values into a vector typed AOV, for example for recording positional values.

Physical_sky now goes below horizon: The physical sky shader will now extend the sky color at the horizon all the way down to the bottom pole.Flush Caches menu moved under Utilities.Add Details and Project tabs to Arnold Sky: Light filters, user options, and light linking settings are moved to these new tabs to be consistent with other lights.These would previously have been clamped when using RGB typed AOVs. This should remove the black band under the horizon when not using an infinite ground plane.
