Aliasing

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The most interesting side of Nvidia's new RTX 50 series is not the GPUs themselves, not even close, it's DLSS 4 upscaling that steals the spotlight with a new AI model and much improved image quality.

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Frequency-domain blue noise generator

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Since 2008, I am using almost exclusively a digital camera. But I am always missing the black and white darkroom prints. From time to time, I order paper prints of my pictures using online services…

RBDOOM-3-BFG 1.5.0 replaces OpenGL with DX12 and Vulkan using Nvidia's NVRHI API and adds support for glTF 2 models and animations.

I've heard that when sampling in 1D, such as $latex x \in [0,1]$, you should keep your samples away from the edges of the sampling domain (0 and 1). I've also heard that when sampling i…

A new musical instrument celebrating the expressive possibilities of redundant magnetic media

The expectation that the behaviour for image resizing is the same among the libraries can cause unforeseen problems...

I've been digging into the low level behaviour of high throughput packet classification and pushing for my job. The initial suggestions from everyone was "use netmap!" Which was cool, but it only seems to to fast packet work if you're only ever really flipping packets between receive and transmit rings. Once you start actually looking into the payload, you start having to take memory misses and things can slow down…

I'm sure everyone remembers the Nokia 3310 – whether it's because of its legendary status as being so durable that it is often depicted as being indestructible in numerous interne…

Article URL: https://en.wikipedia.org/wiki/Supersampling Comments URL: https://news.ycombinator.com/item?id=33412753 Points: 1 # Comments: 0

Been a bit, huh? It's been 10 months since the last minor release, and over a year and a half since the last major release, but progress definitely has not stopped in the meantime. Although a lot of the changes in this version are under the hood, cleaning up a lot of older code, paying down technical debt and fixing bugs, there are still some major new features in this release. Maybe we spent a bit too long on the…

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Synthesizing realistic images involves computing high-dimensional light-transport integrals. In practice, these integrals are numerically estimated via Monte Carlo integration. The error of this estimation manifests itself as conspicuous aliasing or noise. To ameliorate such artifacts and improve image fidelity, we propose a perception-oriented framework to optimize the error of Monte Carlo rendering. We leverage…

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Magnetic resonance imaging (MRI) has long scan times, sometimes close to an hour for an exam. This sucks because long scan times makes MRI exams more expensive, less accessible, and unpleasant.