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Castle Game Engine@castleengine
Jun 5
Music Player example application, important fixes around audio and skinned animation castle-engine.io/wp/2026/06/… #GameDev #IndieDev #Audio #Animation #glTF #Android #OpenSource #Pascal #CastleEngine

Music Player example application, important fixes around audio and skinned animation

We have a new example: Music Player, a simple application that allows to play a chosen audio track with UI similar to typical mobile music/audiobook players. This example has a nice backstory: For …

castle-engine.io
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Castle Game Engine@castleengine
May 31
Web: bump mapping, clip planes, fog, terrain, occlusion culling; also Unholy Society demo on web updated castle-engine.io/wp/2026/05/… #GameDev #IndieDev #WebGL #HTML5 #Shaders #OpenSource #Pascal #FreePascal #CastleEngine

Web: bump mapping, clip planes, fog, terrain, occlusion culling; also Unholy Society demo on web...

Shaders on web fixes: Our shaders on the web platform can render now all our effects: Bump mapping (normal maps). As shown by demos: bump_mapping (source code). creature_behaviors (source code). th…

castle-engine.io
8
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Castle Game Engine@castleengine
May 15
Audio (sound, music) on the web, sound API improvements (arbitrary channels, float frequency etc.) castle-engine.io/wp/2026/05/… #GameDev #IndieDev #WebAudio #HTML5 #OpenSource #Pascal #FreePascal #CastleEngine

Audio (sound, music) on the web, sound API improvements (arbitrary channels, float frequency etc.)

We have implemented audio playback on the web. Underneath we use WebAudio API but you don’t really need to know anything about it — just use Castle Game Engine sound API and components …

castle-engine.io
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Castle Game Engine@castleengine
Apr 6
Support for PLY model format and InlineGeometry node castle-engine.io/wp/2026/04/… #castleengine #X3D #3D #FPC #Delphi #gamedev

Support for PLY model format and InlineGeometry node

We support now loading models in PLY format, commonly used for 3D scanning and printing. We support all common variants, which means ASCII and binary with any endianness. We support both models wit…

castle-engine.io
4
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Castle Game Engine@castleengine
Feb 23
AI usage guidelines and thoughts updated, and… test of vibe-coding with Castle Game Engine castle-engine.io/wp/2026/02/… #gamedev #ai #claude #pascal #delphi #fpc #castleengine

AI usage guidelines and thoughts updated, and… test of vibe-coding with Castle Game Engine

As most of us, I spend lately considerable amount of time researching and talking about AI implications (for coding and beyond). It’s a big subject. The technology offers us various applicati…

castle-engine.io
4
84
Castle Game Engine@castleengine
Feb 9
Upgrade to GTK 3 castle-engine.io/wp/2026/02/… #castleengine #gamedev #gtk #fpc #pascal

Upgrade to GTK 3

We are upgrading our engine usage on Linux and FreeBSD from GTK 2 to GTK 3. Our installation instructions and scripts include now information to add GTK 3 packages. This is as simple as installing …

castle-engine.io
1
13
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Castle Game Engine@castleengine
Jan 18
Engine downloads with “bundled FPC” for all platforms, castle-build-ci to easily use CI with our engine, Woodpecker (Codeberg) CI examples and impressions castle-engine.io/wp/2026/01/… #castleengine #codeberg #fpc #woodpecker #ci #githubactions

Engine downloads with “bundled FPC” for all platforms, castle-build-ci to easily use CI with our...

We have a number of news related to using CI (continuous integration) / CD (continuous delivery) with our engine. The idea of CI / CD is that you let some automatic process to be performed on your …

castle-engine.io
3
61
Castle Game Engine@castleengine
30 Dec 2025
December news (unlimited skin joints on shaders, PointProperties), and plans for 2026 (next release, SignPath, better macOS Silicon, shadow maps…) castle-engine.io/wp/2025/12/… #castleengine #pascal #fpc #delphi #gamedev

December news (unlimited skin joints on shaders, PointProperties), and plans for 2026 (next...

Hello everyone! I hope you have a peaceful time at the end of December and spend it doing what you love — whether it means developing games, or playing games, or just resting (and thinking ab…

castle-engine.io
4
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Castle Game Engine@castleengine
1 Dec 2025
November improvements: huge animation upgrade, guidelines about AI usage, Codeberg mirror, various fixes castle-engine.io/wp/2025/12/… #castleengine #gamedev #pascal #Delphi #FPC #khronos #glTF #X3D #codeberg

November improvements: huge animation upgrade, guidelines about AI usage, Codeberg mirror, various...

We have a few things to report from November. Enjoy :) We have merged a big branch with numerous improvements to our animation handling (skinned animation and other). The important new functionalit…

castle-engine.io
5
407
Castle Game Engine@castleengine
2 Oct 2025
September engine progress: IFC, web, CastleHttps, VS Code debugging, zen mode, X3D 4.0 4.1, downloads mirror castle-engine.io/wp/2025/10/… #castleengine #gamedev #ifc #x3d #pascal #delphi #fpc

September engine progress: IFC, web, CastleHttps, VS Code debugging, zen mode, X3D 4.0 4.1,...

This was a busy month, with lots of engine work and also a great conference in Germany organized by Sorpetaler. Let me then announce a bag of engine improvements and news all across the board from …

castle-engine.io
7
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Castle Game Engine@castleengine
13 Sep 2025
Castle Model Viewer available on iOS, Android version updated too castle-engine.io/wp/2025/09/… #castleengine #ios #appstore #gltf #khronos #web3d #x3d #ifc #pascal #delphi

Castle Model Viewer available on iOS, Android version updated too

We have released Castle Model Viewer Mobile on iOS (iPhone, iPad) and you can get it right now from the App Store! Open this link to the AppStore on your iPhone/iPad, or just search for “Cast…

castle-engine.io
4
158
Castle Game Engine@castleengine
30 Aug 2025
New example: get random image using Unsplash REST API castle-engine.io/wp/2025/08/… #castleengine #pascal #unsplash #fpc #delphi

New example: get random image using Unsplash REST API

We have a new example in our repository: examples/network/random_image_from_unsplash. This shows using our to access Unsplash API and ask for a random image matching a given search term (like a …

castle-engine.io
5
113
Castle Game Engine@castleengine
8 Aug 2025
Android: Updated applications (Castle Model Viewer, Platformer…) in Google Play, on the engine side: upgraded Google Play Services to v2 and Android SDK to 35 castle-engine.io/wp/2025/08/… #castleengine #gamedev #android #fpc #gltf #ifc

Android: Updated applications (Castle Model Viewer, Platformer…) in Google Play, on the engine...

Castle Model Viewer for Android version 2.8 has been released! This brings: Support for IFC format right in our mobile viewer. Small UI improvements: better button order (left-most changes model), …

castle-engine.io
1
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Castle Game Engine@castleengine
26 Jul 2025
Register for the upcoming Pascal Conference in Germany (Early Bird price until 31.07) castle-engine.io/wp/2025/07/… #castleengine #gamedev #Pascal #delphi #FPC #LAZARUS_anime

Register for the upcoming Pascal Conference in Germany (Early Bird price until 31.07)

I will be at the Pascal Conference 2025 in Germany, in September this year. And you can be there too :) The schedule has been announced on the conference site. A number of great people, influential…

castle-engine.io
3
171
Castle Game Engine@castleengine
25 Jul 2025
Delphi advancements: groundwork for more platforms (Android, macOS, iOS), Castle Model Viewer Delphi, cli Delphi tools on macOS, fixes for C Builder, Delphi 64-bit IDE castle-engine.io/wp/2025/07/… #castleengine #gamedev #pascal #delphi #embarcadero #cppbuilder #radstudio

Delphi advancements: groundwork for more platforms (Android, macOS, iOS), Castle Model Viewer ...

We have a few treats for Delphi users in this post: Base engine units (but not yet rendering!) are now compatible with more Delphi platforms. To opens the door to make our engine compatible with mo…

castle-engine.io
12
275
Castle Game Engine@castleengine
9 Jul 2025
Support for new Tangent node in X3D, with vectors as 4D, better aligned with glTF castle-engine.io/wp/2025/07/… #castleengine #x3d #gamedev #delphi #pascal

Support for new Tangent node in X3D, with vectors as 4D, better aligned with glTF

The short version of this post, if you don’t want to go into technical details, is that one aspect of using bump mapping is now better in Castle Game Engine. Our data transfer and logic is mo…

castle-engine.io
6
125
Castle Game Engine@castleengine
28 Jun 2025
URL improvements: castle-config:/ protocol, use UriExists and FindFiles on any URL (including e.g. zip), TCastleMemoryFileSystem castle-engine.io/wp/2025/06/… #castleengine #gamedev #gltf

URL improvements: castle-config:/ protocol, use UriExists and FindFiles on any URL (including e.g....

We present a number of improvements to our URL system, which is the basis for all engine resource loading and saving: We introduced castle-config:/ URL protocol, to save files in a system-specific …

castle-engine.io
4
131
Castle Game Engine@castleengine
21 Jun 2025
Slides and example from Delphi Day 2025 presentation and after-thoughts (Afterwarp, shadow maps, BGFX and deferred rendering) castle-engine.io/wp/2025/06/… #castleengine #delphi #pascal #gamedevelopment

Slides and example from Delphi Day 2025 presentation and after-thoughts (Afterwarp, shadow maps,...

I’m traveling back home after enjoying Delphi Day 2025 in Piacenza. I think I’ve made a nice presentation about the engine features. Slides are available here and one new (simple and fu…

castle-engine.io
1
5
214
Castle Game Engine@castleengine
30 May 2025
Meet me in Netherlands (Amsterdam), Italy (Piacenza), Germany (Sundern) at the upcoming Pascal conferences castle-engine.io/wp/2025/05/… #castleengine #gamedev #pascal #delphi #fpc #lazarus

Meet me in Netherlands (Amsterdam), Italy (Piacenza), Germany (Sundern) at the upcoming Pascal...

As many of you know, I looove talking about Castle Game Engine and our many features. But my wife, though she loves me dearly, eventually says “enough” :) So I learned to travel around …

castle-engine.io
1
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Castle Game Engine@castleengine
1 May 2025
April improvements: physics upgrade, sphere casting, layers filtering, easy factory, iOS fixes, image improvements, and more castle-engine.io/wp/2025/05/… #castleengine #physics #gamedev #pascal #fpc #delphi

April improvements: physics upgrade, sphere casting, layers filtering, easy factory, iOS fixes,...

We have a number of improvements to announce, so welcome to another “bag of improvements all around the engine” news post! Take a look around, see if you find something you like :) As u…

castle-engine.io
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