Hourglass Low-poly 3D model

PBR realistic 3D model of a static hourglass, suitable for renders and games.

Characteristics:

• Good for close views.
• In some formats the glass uses parametric material for best visual results.
• Textures are 4K PBR - Physically Based Rendering, for Roughness/Metalness workflow.
• Entirely UV-mapped, glass included, with fully unwrapped UVs (non-overlapping UVs).
• Objects and materials are descriptively and uniquely named.
• Originally modeled on Maya LT, textured with Substance Painter.

Included formats:

• Unreal Engine 4.24 (uasset), also tested with versions 4.27, 5.11 and 5.20.
• Unity 2020 (unitypack)
• Blender 3.3.1.
• MilkShape 1.8.4.
• Marmoset Toolbag 3.07 Scene Bundle.
• Fbx, obj and dae (textures set included separately).

Unreal Engine format specifics:

• Included mesh with all parts combined.
• Included meshes for each part of the model.
• Base material and material instances (with lots of adjusts for glass).
• Glass material uses translucency (no dithering).
• When first loading the model, Unreal can take same seconds to display the glass, while compiling its material. This is normal and usually happens only once.
• No third-party plugins needed.

Geometry:

• Model consists of 3 objects: Hourglass, Glass and Sand.
• Sealed, watertight 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 4248 (4248 quads) and 4264 vertices.
• Compatible with subdivision (mesh smoothing).
• Unreal format (uasset) triangulates all faces.

Materials and textures:

• Two materials: MatHourglass and MatGlass.
• MatGlass uses textures in Blender and is parametric (not using textures) in the other formats.
• Glass textures are included in the textures pack.
• All textures are png, 4096 x 4096 pixels (4K textures).
• Blender, Marmoset and MilkShape formats use relative texture paths.
• PBR textures set: base color (no alpha channel), both directx and opengl normal maps, height (bump), metalness, AO (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 your 3D editor.

Preview images:

• Unreal preview images captured with Auto Exposure disabled.
• Preview Blender images are rendered with Cycles (not tested with Eevee).
• 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: 7.3 cm (width) x 10 cm (height) x 7.3 cm (deep).

Additional notes:

• Fbx and obj formats were exported by Maya LT.
• Collada (dae) format was exported by Blender.
• The obj format does not preserve the hierarchy or the pivots locations of the different objects. If you import this format, you may need to redo what it lacks.
• Included glass textures are optimized for Blender (Cycles) and may need some tweaking to look good in other renders, as each software and render offers different ways of getting the best results for translucency.