NVIDIA Extends Fragment Shading Rate Extension In Vulkan 1.2.160

Written by Michael Larabel in Vulkan on 9 November 2020 at 06:12 AM EST. Add A Comment
Vulkan 1.2.160 is out this morning as the newest revision to the Vulkan graphics/compute API.

Besides the usual assortment of fixes/clarifications to the specification, Vulkan 1.2.160 brings one new extension. That new extension this week is NVIDIA's VK_NV_fragment_shading_rate_enums.

Last month saw the release of Vulkan 1.2.158 with the fragment shading rate extension added. That extension is for altering the rate at whcih fragments are shaded on a per-draw, per-primitive, or per-region basis. It's part of the recent cross-vendor trend of allowing games to be shaded at different rates depending upon the level of detail needed in particular scenes or spending less resources rendering areas that aren't of much importance to the gameplay.

Less than one month after VK_KHR_fragment_shading_rate was introduced, NVIDIA engineers are extending it with VK_NV_fragment_shading_rate_enums. This new extension allows the fragment shading rate extension to use a "supersample" rate to trigger multiple fragment shader invocations per pixel. There is also a "no invocations" rate to discard any portions of a primitive that would use that shading rate. At this stage the only new enums for the fragment shading rate are indeed the supersample and no invocations.

The full list of Vulkan 1.2.160 changes can be found via this Git commit.
Related News
About The Author
Michael Larabel

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

Popular News This Week