[TRACKER] Porting the demos to Godot 4

[aaronfranke]

This issue tracks the progress of porting the Godot demo projects to Godot 4.0. This list is in alphabetical order by folder path.

• ✅ and a checked box means that the demo is fully ported and working.
• 🚧 means that the demo still needs to be ported manually.
• 🐛 means that there are engine (not project) bugs that show up in this project. Projects that have bugs but the cause is unknown don't get 🐛.
• 🐞 means that there are minor bugs such as errors printing in the console.
• 🌋 means that there is a bug with rendering (possibly a problem with the project).
• 📜 means that there is a bug with scripting (can be GDScript/C#/VisualScript).
• 🖽 means that this project uses TileMap. 3.x tile data doesn't work in master.
• 💥 means that opening the editor with this project causes the engine to crash.

• ✅ Bullet Shower
• ✅ Dodge the Creeps
• ✅ Hierarchical Finite State Machine
• ✅ GD Paint
• ✅ HDR for 2D (renamed to Glow in 2D due to Vulkan: Cannot retrieve HDR texture from Viewport (LDR texture is returned instead) godot#54122)
• ✅ Hexagonal Game
• ✅ Scene Instancing Demo
• ✅ Isometric Game
• ✅ Kinematic Character 2D
• ✅ 2D Lights as Mask
• ✅ 2D Lights and Shadows
• ✅ Navigation Polygon 2D 'Navigation Polygon 2D' ported to Godot 4.1.1 #955
• ✅ Grid-based Pathfinding with Astar
• ✅ 2D Particles
• ✅ Physics-Based Platformer 2D
• ✅ 2D Physics Tests 2D Physics Tests, fixed "one-way collision script error" #962
• ✅ Platformer 2D
• ✅ Pong with GDScript
• ✅ JRPG Demo Port demos with remade art assets to Godot 4 #922
• ✅ Screen Space Shaders
• ✅ Skeleton2D Demo
• ✅ 2D Shaders for Sprites
• ✅ Tween Demo
• ✅ 3D Global Illumination
• 📜 3D Inverse Kinematics
• ✅ Kinematic Character 3D
• ✅ Material Testers
• ✅ 3D Navigation Mesh
• ✅ 3D Physics Tests
• ✅ Platformer 3D
• ✅ RigidBody Character 3D
• ✅ Truck Town
• ✅ Volumetric Fog
• ✅ Voxel Game Update Voxel demo for Godot 4.1.1 #965
• ✅ 3D Waypoints
• ✅ BPM Sync Demo
• ✅ Audio Device Changer Demo
• ✅ Audio Generator Demo
• ✅ Audio Mic Record Demo
• ✅ Audio MIDI Piano Demo
• ✅ Audio Spectrum Demo
• ✅ BIDI and Font Features
• ✅ Control Gallery
• ✅ Drag and Drop (GUI)
• ✅ Input Mapping GUI Remove old and unused project settings, update various demos for 4.2 #1024
• ✅ Multiple Resolutions
• ✅ Pseudolocalization Demo (should use canvas_items stretch mode)
• ✅ RegEx (Regular Expressions)
• ✅ Rich Text Label with BBCode
• ✅ Signed Distance Field Font (renamed to Multi-channel Signed Distance Field font) Remove old and unused project settings, update various demos for 4.2 #1024
• ✅ GUI Theming Override Demo
• ✅ Translation Demo Update GUI Translation demo for 4.0 #930 Remove old and unused project settings, update various demos for 4.2 #1024
• 🚧 UI Mirroring Demo UI Mirroring Demo: ported to Godot 4.1 #974
• ✅ Autoload (Singletons)
• ✅ Background Thread Loading Demo
• ✅ Multiple threads loading
• ✅ Scene Changer
• ✅ Saving and Loading (Serialization)
• ✅ Loading in a Thread
• ✅ 2.5D Demo with GDScript
• ✅ Joypads Demo
• ✅ Matrix Transform Matrix Transform: ported to Godot 4.1 #978
• ✅ OpenSimplexNoise Viewer (renamed to Noise Viewer as 4.0 uses FastNoiseLite)
• ✅ Operating System Testing
• ✅ Pause Demo Remove old and unused project settings, update various demos for 4.2 #1024
• ✅ Window Management
• ✅ Android In-App Purchases Remove old and unused project settings, update various demos for 4.2 #1024
• ✅ Interactive Cubes
• ✅ Multitouch View
• ✅ Accelerometer, Magnetometer and Gyro Demo
• 🚧 2.5D Demo with C#
• ✅ Android in-app purchases with C# Update Android IAP in C# project to Godot 4.3 #1104
• 🚧 Dodge the Creeps with C# Updated Dodge the Creeps C# to Godot mono 4.2 #1000
• 🚧 Pong Multiplayer with C#
• ✅ Pong with C# Update Pong with C# to Godot 4.2.1 #966
• ✅ Multiplayer Bomber Multiplayer Bomber, fixes PhysicsRayQuery #987
• ✅ Pong Multiplayer
• 🚧 WebRTC Minimal Connection
• 🚧 WebRTC Signaling Example
• ✅ WebSocket Chat Demo
• ✅ WebSocket Minimal Demo
• ✅ WebSocket Multiplayer Demo
• ✅ Plugin Demos Remove old and unused project settings, update various demos for 4.2 #1024
• ✅ 2D in 3D Demo
• ✅ 3D in 2D Demo
• ✅ 3D Viewport Scaling Update viewport scaling demo to 4.0. #891
• ✅ Dynamic Split Screen
• ✅ GUI in 3D Demo
• ✅ Screen Capture

[Calinou]

I have an ongoing 4.0 port of the 3D Global Illumination demo: https://github.com/Calinou/godot-demo-projects/tree/add-global-illumination-demo-2-4.0

Edit: Pull request opened: #718

[voylin]

I have fixed the Pause demo with pull request #701
And I checked the Autoload(Singletons) demo in pull request #702
I hope I'm helping in finishing off all these tasks. I'm pretty now to contributing so please tell me when I'm doing things wrong!

Edit:
Had some more time so decided to fix the Translation demo as well with pull request #704
The Control Gallery Demo also got fixed/adjusted so the layout is correct again with previous version. This is done in pull request #705

[GeorgeS2019]

@Calinou I wonder if it makes sense to discuss here what to do with the Godot4 c# demo examples. Should there be discussions among Godot4 mono users or we wait until Godot4 dotnet6 is merged into the master?

@voylin Do you do Godot4 c#? Thank you for volunteering.

[Calinou]

@GeorgeS2019 Porting C# demos will have to wait until the .NET 6 work is merged in master. Until this happens, the API is too unstable for porting to be worth it.

[aaronfranke]

@GeorgeS2019 That's a good point, I added a new emoji to this tracker to reflect this status ❌.

[voylin]

I've been trying to get some of the demo's fixed but 2D Lights as Mask and 2D Lights and Shadows are not possible yet. There are some rendering issues with light2D which make the demo's not work.