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Changelog for Patch 964-Ansel / GOG-4 (added 07 November 2016):

- We have now updated The Witness with support for NVIDIA's Ansel imaging tool.

- We did this because Ansel adds a lot of interesting ways to take images from the game; because The Witness is highly visual, this should be some good fun.

Capabilities include:

- Super-resolution screenshots (waaaay higher than your monitor resolution)
- 360-degree panoramic screenshots
- Image tweaks for brightness, contrast, color control
- Postprocessing filters

- To use this stuff, make sure The Witness is updated, that you are running a supported NVIDIA GPU (GeForce GTX 600-series or later; for a list of compatible GPUs, see ), and that you have recent drivers for your NVIDIA GPU, then press alt-F2 during gameplay. The Ansel control panel should appear.

- When in Ansel mode, you get a bit of control to fly a free-floating camera around. So as not to break the game, if you are in the entry castle at the very beginning, you can't fly very high; but once you turn off the force field and exit the courtyard, you can go much higher.

- Here's the announcement on NVIDIA's site:
I downloaded all 3 installation files. Files 2 and 3 (3.9GB and 153MB) can not pass integrity check. I redownloaded them twice but still they fail.
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Changelog for update 964-Ansel(A) (added 22 March 2017):

- Added support for Cloud Saves in GOG Galaxy 1.2 and newer
Post edited March 22, 2017 by DeMignon
Mac version? it is out on steam
high rated
Changelog for Update (added 24 March 2017):

- Added the Mac version of The Witness to everyone's accounts.
- Added support for Cloud Saves for the Mac version of The Witness in GOG Galaxy 1.2 or newer.
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Changelog for Patch 21.12.2017 (added 06 March 2018):

** The Mac version of the game will be updated as soon as possible **

- Added alternative "Click-to-Move" control scheme: Pause Menu -> Controls -> Mouse Control
- Mimics the touch controls from the iOS version with the mouse
- Left click to walk
- Left double-click to run
- Left click and drag to look around
- Right click to toggle in/out of focus mode
- Hold middle mouse or alt to strafe
- Remappable keys: Pause Menu -> Controls -> Customize Keys
- Remappable gamepad: Pause Menu -> Controls -> Customize Pad
- Ability to swap gamepad analogue sticks: Pause Menu -> Controls -> Pad Sticks Layout
- Fix to prevent players getting stuck after the rotating platform in the marsh
- Allow supersampling in fullscreen in High profile
- Improved early game control-hint UI
- Many small bug-fixes to art, gameplay, and performance
- Savegames are now compatible between Mac and Windows versions.

Windows only:
- Make sure Xbox gamepads work on a vanilla install of Windows 8/8.1/10 without needing to install the Windows 7 pad driver
- Fixed incorrect default language selection on Windows PCs set to Portuguese or Brazilian Portuguese

MacOS only:
- Made default quality settings levels (High, Medium, Low) more in-line with other platforms on equivalent hardware
- Fixed some performance bugs
- These greatly improve performance on Macbook (including Air, Pro) especially older models