Nimikko_School_AVRoom

A complete scene: 309 placed objects (93 meshes, 342,108 triangles in the scene), 102 PBR
materials. Real-world scale; game-ready mid-poly meshes.

Folders (keep each one whole: the scene finds its textures through relative paths in its Textures folder)

Blend/  Nimikko_School_AVRoom.blend   the scene (Blender 5.2): one object per placement, instances share their mesh, collections
        by area, no lights (add a sun / sky). Textures in Blend/Textures.
FBX/    Nimikko_School_AVRoom.fbx     centimetres (1 unit = 1 cm, unit scale 1: imports 1:1 into Unreal, Unity, 3ds Max, Maya),
        Y up, -Z forward; instanced meshes share geometry. Textures in FBX/Textures.
OBJ/    Nimikko_School_AVRoom.obj + .mtl   metres, Y up; PBR material extension (map_Pr roughness, map_Pm metallic, map_Ke
        emission). Textures in OBJ/Textures.
GLTF/   Nimikko_School_AVRoom.gltf + .bin   glTF 2.0, metallic-roughness. Textures in GLTF/Textures.

Meshes

- UV channel 1 (UVMap): material UVs (tiling sets repeat at their real size). UV channel 2 (UV_Lightmap):
  non-overlapping lightmap UVs (FBX, glTF, Blend; OBJ carries one UV channel).
- Custom (weighted) normals, quads and triangles. No LODs or collision in these files.

Textures

*_Albedo.jpg / T_<Material>_BaseColor.jpg|png   base colour (sRGB; .png where the alpha is the opacity)
*_Masks.png / T_<Material>_Masks.png             packed ORM: R ambient occlusion, G roughness, B metallic
                                                 (Blend, GLTF)
*_Masks_AO / _Roughness / _Metallic.png           the same channels as single maps (FBX, OBJ)
*_Normal.png / T_<Material>_Normal.png            normal map: OpenGL (Y+) in Blend, OBJ, GLTF; DirectX (Y-) in FBX
*_Emissive.jpg / T_<Material>_Emissive.jpg        emission colour (screens, signs, lit fittings)
Glass: base colour + opacity (alpha blend).