Highly detailed model of the classic 'Mallard' steam train.

Geometry and Rigging

This is a high-poly model (396,422 vertices, 388,873 faces) featuring both the main engine and the tender, and including a highly detailed cabin interior.  The wheels and drive-train are fully rigged with an armature that animates all the pistons and drive rods simply by rotating a single wheel pair (the rear-most of the large wheels), additional constraints are also included the will automatically rotate all the wheels appropriately simply by moving the 'Engine' bone on the Y axis relative to the 'Root' bone of the armature.

Materials and Textures

The model is fully unwrapped with non-overlapping UVs.  It uses six PBR materials (and an additional simple glass material for the windows, lamp lenses and instrument faces), each materials comes with five 4k textures - base colour, ambient occlusion, metallic, roughness and normal.  The materials were designed in Cycles but as PBR materials should work fine in any render engine that supports the metallic PBR workflow.