SPIRV-Cross

Author SHA1 Message Date

Author	SHA1	Message	Date
Chip Davis	2a9091ce53	MSL: Use `rint()` instead of `round()` to round array coordinates. Vulkan specifies round-to-nearest-even mode to round array coordinates. But we were using `round()`, which is round-to-nearest-away-from-zero. Instead, use `rint()`, which is specified to perform nearest-even rounding in MSL.	2023-01-18 19:34:29 -08:00
Chip Davis	547c29f7bb	MSL: Allow Bias and Grad arguments with comparison on Mac in MSL 2.3. I kept the code to replace constant zero arguments, because `Bias` and `Grad` still have some problems on desktop GPUs. `Bias` works on AMD GPUs. `Grad` does not. Both work on Intel. Still needs testing on NV. It will definitely work with Apple GPUs.	2020-10-30 11:14:59 -05:00

Chip Davis

2a9091ce53

MSL: Use rint() instead of round() to round array coordinates.

Vulkan specifies round-to-nearest-even mode to round array coordinates.
But we were using `round()`, which is round-to-nearest-away-from-zero.
Instead, use `rint()`, which is specified to perform nearest-even
rounding in MSL.

2023-01-18 19:34:29 -08:00

Chip Davis

547c29f7bb

MSL: Allow Bias and Grad arguments with comparison on Mac in MSL 2.3.

I kept the code to replace constant zero arguments, because `Bias` and
`Grad` still have some problems on desktop GPUs.

`Bias` works on AMD GPUs. `Grad` does not. Both work on Intel. Still
needs testing on NV. It will definitely work with Apple GPUs.

2020-10-30 11:14:59 -05:00

2 Commits