SyntaxBoom

I've always missed a GLB/GLTF Loader in Blitzmax to switch to a more modern 3D file format. So I've written a wrapper in C for the CGLTF (https://github.com/jkuhlmann/cgltf) project, and a GLB Demo loading application in BlitzmaxNG+OpenB3D. Works so far with exported GLBs/GLTFs from Blender, sketchfab.com or also meshy.ai

It currently does only load the Basecolor texture - not the PBR textures - but this will be added in a future version with Shader support, merging it with my latest PBR Shader Demo (not released yet). It may also not be fully optimized yet as I've got a lot of help from my friend ChatGPT here, but I'm happy that it works at all :o

Works with BlitzmaxNG (BCC 0.146, BMK 3.58, GCC 120200) + OpenB3D (https://github.com/markcwm/openb3d.mod)

Demo Viewer download including all sources and some GLB models:
LoadGLB.zip (https://www.extrasolar.de/blitzbasic/2025/Projects/LoadGLB.zip)

Demo controls:
- LMB Load new Model
- RMB Save Screenshot
- WHEEL Zoom
- TAB Wireframe
- ENTER Autorotation on/off
- ESC End

I've also included a little Python script in the Models/ folder which "compresses" a GLB to a smaller size. It simply rescales all Textures to a maximum size of 1024 pixels and saves Textures with an Alpha channel as PNG and all others als JPEG with quality 90. Needs pygltflib and PIL.

Very nice. Can you link me to OpenB3D for BlitzMax please?

Quote from: Amon on Oct 07, 2025, 09:01 PMVery nice. Can you link me to OpenB3D for BlitzMax please?

It's already linked in the initial post. You can also browse my Blitzmax Archive - see signature - 2025 Folder. There you'll also find a complete BlitzmaxNG environment, I usually run it from C:\BlitzmaxNG - including all precompiled Mods.

Thanks! :)