Blitzmax GLB Loader

[Krischan]

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 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

Works with BlitzmaxNG (BCC 0.146, BMK 3.58, GCC 120200) + OpenB3D

Demo Viewer download including all sources and some GLB models:
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.

[Amon]

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

[Krischan]

Very 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.

[Amon]

Thanks!