SItoA 7.2.5.0

Be sure to read the Arnold core release notes from version 7.2.2.1 to 7.2.5.0 to see all the performance improvements and other changes that comes "for free" with the updated core.

SItoA specific improvements

• Support for multi-output shaders in the automatic shader building.
• Support alpha in the PNG driver (new in v7.2.4 core)
• Added skip_alpha setting to the TIFF driver.
• Small UI enhancements in Render Settings.

Incompatible / Behavior changes

• The unpremult_alpha parameter in the TIFF settings has been renamed to output_tiff_unpremult_alpha.
• The state_float, state_int, state_vector and distance shader now have multiple outputs, and the main output of those shaders have been renamed. This means that they will be disconnected when opening old scenes. Just connect the first port of them to get the old look back.

Bugfixes

• None

Build system fixes / changes:

• Updated several tests that used the above multi output shaders.

Passes testsuite.