PBR realistic 3D model of a test tube rack, suitable for renders and games.

Characteristics:

• Good for close views.
• Generic, not intended to depict any specific real world brand (copyright safe).
• Glass uses parametric material, according to each format, for best results.
• Rack textures are 4K PBR - Physically Based Rendering, for Roughness/Metalness workflow.
• Compatible with subdivision (mesh smoothing) without changing its original format.
• Entirely UV-mapped, rack and tubes, with fully unwrapped UVs
• Objects and materials are descriptively and uniquely named.
• Originally modeled on Maya LT, textured with Substance Painter.

Included formats:

• Unreal Engine (uasset), compatible with versions from 4.24 and newer, including 5.
• Blender 3.3.1.
• Marmoset Toolbag 3.07 Scene Bundle.
• Fbx, obj and dae (textures set included separately).

Unreal Engine format specifics:

• Included one example blueprint (single-player) with objects hierarchically placed.
• Included meshes for each part of the model, positioned at the origin, for blueprint use.
• Included extra mesh with all parts combined, for fully static use.
• Base materials and material instances (with lots of adjusts for glass).
• Glass material uses translucency (no dithering).
• No third-party plugins needed.

Geometry:

• Model consists of 7 objects: rack and the six test tubes.
• Sealed geometry (no open edges).
• No ngons (quads only).
• No coincident (overlapping) vertices.
• No vertex is connected to more than 5 edges (no poles).
• Total poly count is 9040 (9040 quads) and 9040 vertices.
• Compatible with subdivision (mesh smoothing) without changing its original format.
• Unreal format (uasset) triangulates all faces.

Materials and textures:

• Two materials: MatRack and MatGlass.
• All textures are png, 4096 x 4096 pixels (4K textures).
• Blender, Marmoset and MilkShape formats use relative texture paths.
• PBR textures set: base color, directx normal map, openGL normal map, height, metalness, ambient occlusion, roughness and ORM (composite ambient occlusion (R) + roughness (G) + metalness (B)).
• Exchange formats (obj, fbx, dae): no embeded textures, so you can import them from the PBR set, in accordance to the requirements of the 3D editor you use.

Preview images:

• Preview Blender images are rendered with Cycles.
• HDRI used in Blender previews is CC0 from Poly Haven (formerly HDRI Haven) and is included.

Units and measurement:

• Real world scale.
• Unit system is metric (centimeters).
• Full model dimensions: 17.2 cm (width) x 12.8 cm (height) x 5.6 cm (deep).

Additional note:

• The obj format does not preserve the hierarchy or the pivots locations of the different objects. If you import this format, you need to optionally redo the hierarchy and adjust the pivots.