Graphics Programming weekly - Issue 216 - January 2, 2022

Temporal AA and the quest for the Holy Trail

  • the article presents a very detailed look at temporal anti-aliasing
  • shows each component of the technique visually and explains how it solves the problem
  • provides alternative solutions and presents a link to the sources of the technique

Reader Question Answered 1 - Learning D3D12

  • the article provides a high-level learning guide for getting started with D3D12
  • providing a starting point for getting started quickly as well as detailed learning articles
  • contains sources for performance advice from the different manufacturers
  • additionally contains information where to find the official D3D12 specification to clarify uncertainties

Finding Your Home in Game Graphics Programming

  • the article presents a high-level view of the graphics programming world
  • shows that the specialization has separated into multiple distinct sub-categories
  • presents resources for getting started in the different specializations

Interleaved Gradient Noise: A Different Kind of Low Discrepancy Sequence

  • the article presents the characteristics of IGN(Interleaved Gradient Noise) that make it a good fit for TAA (Temporal Antialiasing Techniques)
  • compares against Bayer, white and blue noise
  • showing visual explanations to show the Low Discrepancy properties

Notes on occlusion and directionality in image based lighting

  • the article presents the findings of the importance of directionality and occlusion for IBL(Image-based lighting)
  • presents comparisons between ray-tracing ground truth, as well as various versions of screen space GTAO( Ground Truth Ambient Occlusion)
  • shows how to bake the directional aspect into Spherical harmonics
  • additionally contains a follow-up post about the technical implementation details

What is an uber shader?

  • the article presents a look back at the emergence of the term uber shader
  • showing how a single shader that supported a flexible BRDF evaluation instead of pre-defined categories
  • the comments contain an insightful discussion about the further historical developments of the term

Not All Blue Noise is Created Equal Part 2

  • the article compares different techniques to generate blue noise
  • presents the quality of the generated noise
  • providing ideas for future development

The History of Retro Game Consoles for Programmers

  • the article provides a history of game consoles in the First Generation 1972 to modern-day consoles
  • presents what new hardware was added with each generation and how constraints and programming environment evolved

Branching on a GPU

  • the article presents branching on GPUs, clearing up that the cost of a branch depends on the kind
  • shows shader code helpers that allow the visualization of the branching patterns
  • additionally presents that extra care is required if branching around texture reads

Stalling a GPU

  • the blog discusses dependent texture reads and the impact on GPU performance
  • shows why it affects performance and discusses tradeoffs to consider

Mixed Precision Algorithms in Numerical Linear Algebra

  • the paper presents a look at the half/single/double and quad precision for floating-point calculations
  • provides an analysis of different linear algebra tasks to derive precision
  • suggesting which types of tasks might be more suitable to reduced precision

[video] The small detail behind Breath of the Wild's Thousands of Trees - Quick Answer #shorts

  • one-minute long video shows the impostors used for far away vegetation in Zelda Breath of the Wild

Global shaders in Unreal without engine modification

  • the article shows how custom shader effects can be integrated into the UE4 pipeline
  • presents a method that doesn’t require engine modification but uses undocumented private classes

Digital Dragons 2021: Adam Sawicki - Efficient Use of GPU Memory in Modern Games

  • talk discusses the available memory types in D3D12/Vulkan
  • discussing ways to upload data to the GPU, including the new hardware Smart Access Memory (Resizable BAR)
  • shows performance advice for usage patterns for the different memory types to achieve optimal performance

Debugging For Graphics Programmers

  • the article provides a collection of advice to help with debugging GPU issues
  • broken down into sub-categories based on the appearance of the bug
  • additionally contains a list of helpful debug infrastructure elements that should be set up to accelerate the process

Thanks to Lesley Lai for support of this series.

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