* Add GTAO options into the struct
* Add gtao mat and shader
* Set type specific parameters in ppm
* Fix inconsistent name
* Fix incorrect param type
* Add bent normal calculation
* Fix the gui
* Adjust precision
* Use mix
* Add some comments
* Refactoring
* Update comments
* Add comments for aoOptions
* Update
* Update
* Address the comments
* Split .mat into bent and non-bent
* Update
* Update
* Use sqrt on mobile
* Omit default case
* Commit beamsplitter generated changes
* Use built-in acosFast
* Remove unused function
* Fix the mismatched parameter type
* Some optimizations
* Commit beamsplitter results
* Update the comment
* Update default value
* Commit beamsplitter changes
* Extract common parameters out
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