enkisoftware
Octree streaming - part 2
Doug Binks - 14 Jan 2014
The post follows on from the earlier post on Octree Streaming. You should be able to read them out of order, but you get cake if you read part 1 first.
Our latest tech update video shows off players moving through the world shortly after joining the game - the video starts only a few seconds after where the last one ends, so about 30 seconds after loading. At this point large sections of the world are still being streamed to clients, but the prioritization of nearby regions ensures detail is present close to the player.
You should be able to see that when moving quickly (the debug movement code has a hyperspeed toggle) the streaming appears to accelerate to keep pace. This is actually a neat simple side effect of the distance prioritization scheme combined with the LOD rendering / request scheme. When the player is moving slowly or is stationary, the streaming system begins to expand the streamed volume, but as the request distance from the player grows, the level of detail requested gets lower. This helps to ensure distant scenery gradually becomes sharper, and in later parts of the video it's clear how having a large view distance helps spatial awareness. When the player accelerates forwards, the streaming system prioritizes the newly nearby regions which require a high level of detail.
Avoyd's in game system (as opposed to its current debug/edit mode) will have a combination of movement modes. I'll be bringing back - with improvements - the smooth wall movement from the first, and adding jump and probably two flight modes. More on these later, but for this tech update the important factor is that some of these modes are close to inertialess, so the player can turn around and change direction rapidly. Additionally, all modes will allow the player to rotate rapidly. This means the streaming and LOD scheme is designed to only take into account player position, and not view direction or velocity.
At 0:26 you'll see a side effect of the current LOD and streaming method: at top-mid screen one of the other client's avatar disappears from view as they enter a volume which does not have sufficient detail on the current client. This isn't too bad a trade off, especially as it happens at a reasonable distance, and it's probably better than having distance entities visible when they should be hidden.
2023
› Optimising Voxel Meshes for Games Using Blender› Implementing a GPU Voxel Octree Path Tracer
› Avoyd Release Streams and Minecraft Lit Materials
› Avoyd Beta Stream
2022
› Isometric Render of a Minecraft Map in Avoyd Voxel Editor2021
› Importing Minecraft maps in Avoyd Voxel Editor improved2020
› Runtime Compiled C++ Dear ImGui and DirectX11 Tutorial2019
› Boxes in Space: procedural generation of abstract worlds in Avoyd› Procedural python word generator: making user names out of 4 syllables
› In-game building
› Player-deployable turrets in Avoyd
2018
› Avoyd Game Singleplayer and Coop Multiplayer Test› Voxel Editor Evolved
2017
› Speeding up Runtime Compiled C++ compile times in MSVC with d2cgsummary› Multiplayers toxic last hit kill and how to heal it
› Avoyd Editor Prototype
2016
› Black triangles and Peter Highspot› Colour palettes and lighting
› Concept art by Rebecca Michalak
2015
› Internals of a lightweight task scheduler› Implementing a lightweight task scheduler
› Feral Vector
› Normal generation in the pixel shader
2014
› Python Google App Engine debugging with PyCharm CE› Lighting voxel octrees and procedural texturing
› Patterns and spheres
› Python Google App Engine debugging with PyTools
› Interview
› Domain masking using Google App Engine
› Octree streaming - part 4
› Black triangles and nervous_testpilot
› Presskit for Google App Engine
› Octree streaming - part 3
›› Octree streaming - part 2
› Octree streaming
2013
› LAN discovery with multiple adapters› Playing with material worlds
› Developer Diary archive
› Website redesign
› First Person Editor
› First Avoyd tech update video
› Implementing a static website in Google App Engine
› Multiplayer editing
› First screenshots
› Thoughts on gameplay modes
› Back in 1999
2002
› ECTS 2002› Avoyd Version 1.6.1 out
› Avoyd Version 1.6 out
2001
› Biting the bullet› Avoyd version 1.5 out
› Monday Mayhem
› Avoyd version 1.5 alpha 1 out
› Avoyd version 1.4 out
› ECTS 2001
› Fun with Greek letters
› Closer just a little closer
› Back already
› Artificial Humanity
› Products and promises
› Ecommerce
› Explosions galore
› Spring fixes
› Open source and ports to other operating systems
› Avoyd LAN Demo Version 1.1 is out
› Thanks for the support
› Avoyd LAN Demo Ready
› Game Tech
› Optimising Voxel Meshes for Games Using Blender› Implementing a GPU Voxel Octree Path Tracer
› Importing Minecraft maps in Avoyd Voxel Editor improved
› Runtime Compiled C++ Dear ImGui and DirectX11 Tutorial
› Boxes in Space: procedural generation of abstract worlds in Avoyd
› Procedural python word generator: making user names out of 4 syllables
› Speeding up Runtime Compiled C++ compile times in MSVC with d2cgsummary
› Internals of a lightweight task scheduler
› Implementing a lightweight task scheduler
› Normal generation in the pixel shader
› Lighting voxel octrees and procedural texturing
› Octree streaming - part 4
› Octree streaming - part 3
›› Octree streaming - part 2
› Octree streaming
› LAN discovery with multiple adapters
› enkiTS
› Internals of a lightweight task scheduler› Implementing a lightweight task scheduler
› RCC++
› Runtime Compiled C++ Dear ImGui and DirectX11 Tutorial› Speeding up Runtime Compiled C++ compile times in MSVC with d2cgsummary
› Web Tech
› Procedural python word generator: making user names out of 4 syllables› Python Google App Engine debugging with PyCharm CE
› Python Google App Engine debugging with PyTools
› Domain masking using Google App Engine
› Presskit for Google App Engine
› Implementing a static website in Google App Engine
› Avoyd
› Implementing a GPU Voxel Octree Path Tracer› Avoyd Release Streams and Minecraft Lit Materials
› Avoyd Beta Stream
› Isometric Render of a Minecraft Map in Avoyd Voxel Editor
› Importing Minecraft maps in Avoyd Voxel Editor improved
› Boxes in Space: procedural generation of abstract worlds in Avoyd
› In-game building
› Player-deployable turrets in Avoyd
› Avoyd Game Singleplayer and Coop Multiplayer Test
› Voxel Editor Evolved
› Multiplayers toxic last hit kill and how to heal it
› Avoyd Editor Prototype
› Black triangles and Peter Highspot
› Colour palettes and lighting
› Concept art by Rebecca Michalak
› Feral Vector
› Patterns and spheres
› Interview
› Black triangles and nervous_testpilot
› Playing with material worlds
› Website redesign
› First Person Editor
› First Avoyd tech update video
› Multiplayer editing
› First screenshots
› Thoughts on gameplay modes
› Back in 1999
› Avoyd 1999
› Developer Diary archive› Back in 1999
› ECTS 2002
› Avoyd Version 1.6.1 out
› Avoyd Version 1.6 out
› Biting the bullet
› Avoyd version 1.5 out
› Monday Mayhem
› Avoyd version 1.5 alpha 1 out
› Avoyd version 1.4 out
› ECTS 2001
› Fun with Greek letters
› Closer just a little closer
› Back already
› Artificial Humanity
› Products and promises
› Ecommerce
› Explosions galore
› Spring fixes
› Open source and ports to other operating systems
› Avoyd LAN Demo Version 1.1 is out
› Thanks for the support
› Avoyd LAN Demo Ready