Phoronix tagged news

Shader Conductor is one of several open-source projects for going from one shading language to another. With Microsoft's Shader Conductor the focus is on converting HLSL to GLSL or SPIR-V (OpenGL/Vulkan), ESSL (OpenGL ES), MSL (Apple Metal), and older HLSL shader models. Shader Conductor can handle all shader stages, including geometry and compute shaders. Learn more about this new Open Source project from Microsoft.

A libre-licensed software implementation of Vulkan has started up again. Originally started in c++ in 2017, for a reimplementation Rust has been chosen for its concurrency and memory-safety features, and Rust's LLVM support makes it highly portable. With OpenGL having both llvmpipe and MesaGL for fallback and testing purposes, it seems strange that there does not exist a corresponding Reference Implementation for Vulkan: the only implementations available are in hardware, making it extremely challenging for anyone considering entering the market. Kazan helps fill that gap. Sponsorship of this entirely libre-licensed project welcomed.

MoltenVK 1.0.20 is out as the latest feature update to this Vulkan-over-Metal layer. With the MoltenVK 1.0.20 release there is support for several new extensions including VK_KHR_maintenance1, VK_KHR_shader_draw_parameters, VK_KHR_get_physical_device_properties2, and VK_KHR_push_descriptor. MoltenVK 1.0.20 also adds the ability to track and access supported/enabled extensions and has re-based its SPIRV-Cross code against upstream.

The X-Plane cross-platform flight simulator has been depending upon OpenGL for nearly two decades since the program first came into existence, but a port of its rendering engine to use the Vulkan API has been a work-in-progress. It looks like their Vulkan support is getting squared away as the company has tweeted this weekend they will be talking about Vulkan integration this weekend at the Flight Sim Expo in Las Vegas.

While current generation Linux games with current Linux GPU drivers using the Vulkan API rather than OpenGL may not be significantly faster with higher-end hardware right, the impact of this newer Khronos graphics API tends to be more profound on lower-end hardware, especially when it comes to lightening the load on the CPU. Following recent Pentium vs. Ryzen 3 Linux gaming tests, Phoronix carried out some fresh benchmarks looking at OpenGL vs. Vulkan on the Ryzen 3 1200 quad-core CPU with NVIDIA and Radeon graphics.