Vyacheslav S. S-V

GPU Optimization for GameDev

Graphics Pipeline / GPU Architecture Overview

2011 - A trip through the Graphics Pipeline 2011
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
2020 - GPU ARCHITECTURE RESOURCES

Core Coding Standard

Coding practices are a source of a lot of arguments among programmers. Coding standards, to some degree, help us to put certain questions to bed and resolve stylistic debates. No coding standard makes everyone happy. (And even their existence is sure to make some unhappy.) What follows are the standards we put together on the Core team, which have become the general coding standard for all programming teams on new code development. We’ve tried to balance the need for creating a common, recognizable and readable code base with not unduly burdening the programmer with minor code formatting concerns.

	/* EDIT:
	* For future reference, this code doesn't work right so don't use it.
	* (but probably could be fixed with some care and attention)
	*/

	// Tiny std::function workalike, to allow storing lambdas with captures. (public domain)
	template <typename> struct fnptr;
	template <typename Ret, typename... Args> struct fnptr<Ret(Args...)> {
	void *obj = nullptr;
	Ret (wrap)(void, Args...) = nullptr;

	//
	// KITTY compression algorithm, by snowcat
	// converted to C, by odzhan
	// 2019-12-07
	//
	#include <stdio.h>
	#include <stdlib.h>
	#include <stdint.h>
	#include <time.h>

	Shader "CustomPBRShader"
	{
	Properties
	{
	[NoScaleOffset] _Albedo("Albedo", Color) = (1.0, 1.0, 1.0, 1.0)
	[NoScaleOffset] _Metalness("Conductivity", Range(0.0, 1.0)) = 0.0
	[NoScaleOffset] _Roughness("Roughness", Range(0.0, 1.0)) = 0.0
	[NoScaleOffset][HDR] _RadianceMap("RadianceMap", CUBE) = "" {}
	[NoScaleOffset][HDR] _IrradianceMap("IrradianceMap", CUBE) = "" {}
	}

	// The MIT License (MIT)
	// Copyright (c) 2018 cmf028
	// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
	// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
	// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH

	// NOTE: Must bind 8x single mip RWTexture views, because HLSL doesn't have .mips member for RWTexture2D. (SRVs only have .mips member)
	// NOTE: globallycoherent attribute is needed. Without it writes aren't guaranteed to be seen by other groups
	globallycoherent RWTexture2D<float> MipTextures[8];
	RWTexture2D<uint> Counters[8];
	groupshared uint CounterReturnLDS;

	[numthreads(16, 16, 1)]
	void GenerateMipPyramid(uint3 Tid : SV_DispatchThreadID, uint3 Group : SV_GroupId, uint Gix : SV_GroupIndex)
	{
	[unroll]

Vyacheslav S. S-V

GPU Optimization for GameDev

Graphics Pipeline / GPU Architecture Overview

Core Coding Standard

Table Of Contents

Table of contents

	#version 430

	#define FORCE_EARLY_Z layout(early_fragment_tests) in

	#extension GL_ARB_shading_language_420pack : enable

	#define ATTRIBUTE_LOCATION(x)
	#define FRAGMENT_OUTPUT_LOCATION(x)
	#define FRAGMENT_OUTPUT_LOCATION_INDEXED(x, y)
	#define UBO_BINDING(packing, x) layout(packing, binding = x)