jdupuy

// Helper function: sample the visible hemisphere from a spherical cap
vec3 SampleVndf_Hemisphere(vec2 u, vec3 wi)
{
	// sample a spherical cap in (-wi.z, 1]
	float phi = 2.0f * M_PI * u.x;
	float z = fma((1.0f - u.y), (1.0f + wi.z), -wi.z);
	float sinTheta = sqrt(clamp(1.0f - z * z, 0.0f, 1.0f));
	float x = sinTheta * cos(phi);
	float y = sinTheta * sin(phi);
	vec3 c = vec3(x, y, z);

h3r2tic

A quick breakdown of lighting in the restir-meets-surfel branch of my renderer, where I revive some olde surfel experiments, and generously sprinkle ReSTIR on top.

General remarks

Please note that this is all based on work-in-progress experimental software, and represents a single snapshot in development history. Things will certainly change 😛

Due to how I'm capturing this, there's frame-to-frame variability, e.g. different rays being shot, TAA shimmering slightly. Some of the images come from a dedicated visualization pass, and are anti-aliased, and some show internal buffers which are not anti-aliased.

Final images

remzmike

// "Bob Nystrom - Is There More to Game Architecture than ECS?"

// https://www.youtube.com/watch?v=JxI3Eu5DPwE

// Idea 0. We don't need ECS.

// Idea 1. Use components (regular components not ecs) to represent capabilities.

class Item {
    Attack melee;

munrocket

WGSL 3D SDF Primitives

Revision: 06.08.2023, https://compute.toys/view/407

Sphere - exact

fn sdSphere(p: vec3f, r: f32) -> f32 {
  return length(p) - r;
}

J-Vernay

(DRAFT) Proposal for <native_build> in C++23

Abstract

This document proposes an extension of the C++ standard library. This is an informal draft for a proposal: its aim is to get feedback from other C++ users and implementers. Basically, this proposal provides a starting point to use C++ as a basis for C++ build systems. For this, it provides the minimal C++ header <native_build> which is implemented by the compiler maintainers. It defines new types (which are basically strong-typed alias of std::filesystem::path), a new templated function build(...) for building the project, and run(...) for running an executable. It has also a permissive requirement: programs using `` are only required to work on the machine

raysan5

CUSTOM GAME ENGINES: A Small Study

WARNING: Article moved to separate repo to allow users contributions: https://github.com/raysan5/custom_game_engines

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like [Unreal](https:

andreasbotsikas

REM Download ffmpeg from https://www.ffmpeg.org/download.html.
REM Place ffmpeg.exe in the folder with the vob files

REM Merge all vob files into one
REM VTS_01_0.VOB is usually the menu which you may not want
if exist VTS_01_7.VOB (
copy /b VTS_01_1.VOB+VTS_01_2.VOB+VTS_01_3.VOB+VTS_01_4.VOB+VTS_01_5.VOB+VTS_01_6.VOB+VTS_01_7.VOB ConCat.vob
) else if exist VTS_01_6.VOB (
copy /b VTS_01_1.VOB+VTS_01_2.VOB+VTS_01_3.VOB+VTS_01_4.VOB+VTS_01_5.VOB+VTS_01_6.VOB ConCat.vob
) else if exist VTS_01_5.VOB (

pixelsnafu

Volumetric Clouds Resources List

1. A. Schneider, "Real-Time Volumetric Cloudscapes," in GPU Pro 7: Advanced Rendering Techniques, 2016, pp. 97-127. (Follow up presentations here, and here.)

2. S. Hillaire, "Physically Based Sky, Atmosphere and Cloud Rendering in Frostbite" in Physically Based Shading in Theory and Practice course, SIGGRAPH 2016. [video] [course notes] [scatter integral shadertoy]

3. [R. Högfeldt, "Convincing Cloud Rendering – An Implementation of Real-Time Dynamic Volumetric Clouds in Frostbite"](https://odr.chalmers.se/hand

Erfan-Ahmadi

1. What does the Rendering Engine Need?

• Rendering Engine
  • Support for Multiple Graphics APIs : OpenGL | Vulkan | DirectX12 | DirectX11 | Metal
  • Content Export Pipeline : Create Maya/Max Plugins to export meshes based on Renderers needs. (Assimp Commercial Licence -> Pay)
  • Texture Compression Libraries
  • Material System : Artists Configure shaders, textures, parameters to import in game
  • Game-side Manager of Models/Materials/Lights
  • Good Visibility System (Frustum/Occlusion) (VisibilityBuffers?)
  • Multi-Threded Submission System to reduce cost of submission to GPU
• Lighting/Shadow Rendering System

silvesthu

GPU Optimization for GameDev

Graphics Pipeline / GPU Architecture Overview

• 2011 - A trip through the Graphics Pipeline 2011
• 2013 - Performance Optimization Guidelines and the GPU Architecture behind them
• 2015 - Life of a triangle - NVIDIA's logical pipeline
• 2015 - Render Hell 2.0
• 2016 - How bad are small triangles on GPU and why?
• 2017 - GPU Performance for Game Artists
• 2019 - Understanding the anatomy of GPUs using Pokémon