Reduce and scan operations are core building blocks in the world of parallel computing, and now Nabla has a new release with those operations made even faster for Vulkan at the subgroup and workgroup levels.

This article takes a brief look at the Nabla implementation for reduce and scan on the GPU in Vulkan.

Then, I discuss a missing execution dependency expected for a subgroup shuffle operation, which was only a problem on Nvidia devices in some test cases.

Real time rendering performance is often limited by 3D assets as much as it's limited by code. Good low poly assets inevitably rely on baking, the process of transferring details from a high poly mesh with a complex material to a low poly one with a much simpler material. Unfortunately, however, there seems to be a lack of info regarding baking around. Especially in Blender, things can sometimes be a bit unintuitive regarding baking. In the process of working on my game, A Short Odyssey (ASO), I came up with a workflow that works quite well for me, so I will share it with you today.

For this tutorial we are going to use this wooden bowl model from the fantastic website Polyhaven.

Described as "the most important numerical algorithm of our lifetime", the FFT has applications in a plethora of domains.

In this article I show how to run an FFT in Nabla, talk about different optimizations and showcase one application in graphics: FFT Bloom.

In computer graphics, Mie theory describes the interactions between light and large (relative to the wavelength of light) particles in a medium. Simulating it is crucial in rendering convincing volumetric effects like fog, clouds, and smoke.

This article is primarily aimed at graphics programmers who already have a volume renderer that has a pluggable phase function. In other words, this is a tutorial about producing phase functions that you can easily use in a volume renderer.

While a common way to use GLSL, editing bare text files or embedded strings is not a scalable way to write programs.

This article will show how to make programming in GLSL more tolerable with linting and various means of code reuse.

January 2022

Best of 2021 Community Creation Showcase

December 2021