Prepare custom FBX scenes for complex examples

[heavyrain266]

This is tracking issue for myself or anyone with access to closed source software which uses FBX SDK for exporting, such as:

• Cinema4D S26
• Rhinoceros 7
• Autodesk Maya 2022
• Autodesk 3ds Max 2022

(Blender uses reverse engieered exporter which may cause issues)

I don't really want to vendor different scenes from the internet which may cause issues with licensing which are usually unclear or scenes on various websites are vendored from different ones without any licensing info.

NOTE: Each scene must be <100mb and exported as FBX 7.4 (bin, not ASCII).

Example scenes:

• Isometric room
• Old vehicle (like multicar/fiat 125p)
• Simple biome (textured/low poly)
• Simple viking village (low poly, entities)
• Post-apo village/city (like Jackson or part of Boston/Seattle but low poly/voxel)

[nicopap]

Here is a set of things that I'd like to test with example scenes:

• Variety of UnitScaleFactor and coordinate systems
• Deeply nested scene trees that stress-tests the validity of the calculation of transform
• Scene with N-gons to test the triangulation algorithm
• PBR material matrix is the style of this video link
• Classical Lambert/Phong shader material matrix as well
• Odd objects like light sources and cameras
• Animations here is a potential good test scene