Alexander Malyutin alexmalyutindev

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

From time to time I receive questions on the depth aware upsampling mentioned in the INSIDE-rendering presentation: https://loopit.dk/rendering_inside.pdf#page=39

The goal of this technique is to take the texture-output from a half-resolution pass, containing the results of sampling volumetric fog - and scale it up to full resolution. This presents two challenges:

Making sure samples from the low-resolution buffer, do not spill on top of foreground objects in the high-resolution buffer
Making sure the samples in the volumetric fog can be properly accumulated by TAA after upsampling

	// MIT License
	//
	// Copyright (c) 2024 Alexander Malyutin
	//
	// 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:

	# Source
	# Vertex animation textures, beanbags and boneless animations
	# by Martin Donald
	# https://www.youtube.com/watch?v=NQ5Dllbxbz4

	import bpy
	import bmesh
	import mathutils