Raytracing tagged news

Ray tracing has become Diligent

Khronos has recently released the final versions of the ray tracing extension specifications. It is latest release, Diligent Engine enabled full support of these extensions to provide easy-to-use yet fully exhaustive cross-platform ray tracing API. The API is the same for Vulkan and Direct3D12 and allows authoring shaders in HLSL for both back-ends. GLSL and SPIRV bytecode are also supported by Vulkan back-end. The API lets developers concentrate on the algorithm essence and leave handling of the implementation-specific details to the engine.
A new tutorial demonstrates how ray tracing API in Diligent Engine can be used to simulate physics-based light transport in a scene to render soft shadows, multiple-bounce reflections and refractions, and dispersion.

Press Release: Vulkan SDK, Tools and Drivers are Ray Tracing Ready

Khronos announces that LunarG has released the Vulkan Software Development Kit (SDK) version 1.2.162.0, with full support for the new Vulkan Ray Tracing extensions, including Validation Layers and integration of upgraded GLSL, HLSL and SPIR-V shader tool chains. The Khronos open source Vulkan Samples and Vulkan Guide have been upgraded to illustrate ray tracing techniques. Finally, with production drivers shipping from both AMD and NVIDIA, developers are now enabled to easily integrate Vulkan Ray Tracing into their applications.

Blog: Holochip Develops Breakthrough Light Field Rendering Using Vulkan Ray Tracing

For the past two years, Holochip has been working on light field technology for the US Navy’s Aegis program. The program calls for a table top light field display that can accommodate horizontal and vertical real-time parallax. In October 2020, the team working on OpenXR™ at Holochip released an open source Vulkan® example projectand started work with light field display technology using the OpenXR API. As a result of both efforts, Holochip has discovered a method of light field real-time rendering that is built upon the Khronos Group’s Vulkan Ray Tracing extensions.

AMD announces new Vulkan ray tracing extension support in latest driver

AMD has announced after a brief spell in their beta driver, support for the following new Vulkan ray tracing extensions are now available in their main Radeon Adrenalin driver 20.11.3 and onwards: VK_KHR_acceleration_structure, VK_KHR_ray_tracing_pipeline, VK_KHR_ray_query, VK_KHR_deferred_host_operations, and VK_KHR_pipeline_library. In addition to the ray tracing extensions, there’s also now support for VK_KHR_shader_terminate_invocation.

The Khronos Group releases the Vulkan Ray Tracing Final Specification

Today, Khronos has released the final versions of the set of Vulkan, GLSL and SPIR-V extension specifications that seamlessly integrate ray tracing into the existing Vulkan framework. This is a significant milestone as it is the industry’s first open, cross-vendor, cross-platform standard for ray tracing acceleration - and can be deployed either using existing GPU compute or dedicated ray tracing cores. Vulkan Ray Tracing will be familiar to anyone who has used DirectX Raytracing (DXR) in DirectX 12, but also introduces advanced functionality such as the ability to load balance ray tracing setup operations onto the host CPU. Although ray tracing will be first deployed on desktop systems, these Vulkan extensions have been designed to enable and encourage ray tracing to also be deployed on mobile. Additionally, Khronos has posted a blog on “Vulkan Ray Tracing Best Practices for Hybrid Rendering” which explores ray tracing techniques in Wolfenstein: Youngblood.

NVIDIA Online GTC Ray Tracing with Vulkan Sessions in October 2020

​NVIDIA is presenting the GPU Technology Conference (GTC) October 5-9, 2020 online. For those developers looking to learn more about Ray Tracing with Vulkan, there will be 2 Vulkan sessions on October 6th. This session is a highlight reel of code migration from DirectX to Vulkan ray tracing - including missteps, obstacles and insights encountered along the way. We will also cover recommendations for tooling setup and techniques to get your ray tracing journey smoothly underway. More information is available here.

Khronos Group Releases Vulkan Ray Tracing

The Khronos Group announces the ratification and public release of the Vulkan Ray Tracing provisional extensions, creating the industry’s first open, cross-vendor, cross-platform standard for ray tracing acceleration. Primarily focused on meeting desktop market demand for both real-time and offline rendering, the release of Vulkan Ray Tracing as provisional extensions enables the developer community to provide feedback before the specifications are finalized. Comments and feedback will be collected through the Vulkan GitHub Issues Tracker and Khronos Developer Slack. Developers are also encouraged to share comments with their preferred hardware vendors. The specifications are available today on the Vulkan Registry. An introductory launch presentation on Vulkan Ray Tracing is here, and further technical details can be found in this blog post.

Today, The Khronos Group announces the ratification and public release of the Vulkan Ray Tracing provisional extensions, creating the industry’s first open, cross-vendor, cross-platform standard for ray tracing acceleration. Primarily focused on meeting desktop market demand for both real-time and offline rendering, the release of Vulkan Ray Tracing as provisional extensions enables the developer community to provide feedback before the specifications are finalized. Comments and feedback will be collected through the Vulkan GitHub Issues Tracker and Khronos Developer Slack. Developers are also encouraged to share comments with their preferred hardware vendors. The specifications are available today on the Vulkan Registry.

The focus of this NVIDIA tutorial and the provided code is to showcase a basic integration of ray tracing within an existing Vulkan sample, using the VK_NV_ray_tracing extension. Note that for educational purposes all the code is contained in a very small set of files. A real integration would require additional levels of abstraction.

NVIDIA VKRay is a set of three extensions that bring ray tracing functionality to the Vulkan. VK_NV_ray_tracing is the stable registered extension for adding ray tracing effects to Vulkan raster applications. Callable shaders provide applications with the means to reuse shading code across many different objects. The new stable extension includes API updates for cleaner code and flexible memory management. Learn more in the NVIDIA Developers News center.

In the latest version of the Nsight Graphics debugger tool, the Pixel History feature now supports the Vulkan API. Pixel History is key to understanding how a particular pixel changed throughout the creation of a frame. This feature gives you the ability to inspect the pixel’s color at each revision, how many samples passed or failed, the failure reason if it failed, and the associated event. You can find out more information about Pixel History in this Pixel History Spotlight!

Also, we have added support for another Vulkan Extension to the list: Vulkan Meshlets (VK_NV_mesh_shader)! You can now profile, debug, and create a C++ Capture of Vulkan applications that utilize mesh shaders and meshlets. A full list of supported Vulkan Extensions can be found in our documentation.

NVIDIA’s new Turing GPU unleashed real-time ray-tracing in a consumer GPU for the first time. Since then, much virtual ink has been spilled discussing ray tracing in DirectX 12. However, many developers want to embrace a more open approach using Vulkan, the low-level API supported by the Khronos Group. Vulkan enables developers to target many different platforms, including Windows and Linux, allowing for broader distribution of 3D-accelerated applications. NVIDIA’s 411.63 driver release now enables an experimental Vulkan extension that exposes NVIDIA’s RTX technology for real-time ray tracing through the Vulkan API. Head over to the NVIDIA blog to read all about this update.

NVIDIA announced Nsight Graphics 2018.4, the first public release of GPU Trace. This release also adds D3D12 Pixel history, supports NVIDIA’s Vulkan ray tracing extension, completes support for the D3D12 RS3 SDK, and improves performance for D3D11 and Vulkan debugging and profiling. Additionally, with this release, the Nsight family of tools is being re-versioned to a year dot release number versioning scheme.

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