Lumion's AI PBR Material Generator includes wood as one of its five built-in material type presets. The tool extracts PBR maps from a reference photograph of a wood surface — useful for architects who already use Lumion and want to match a specific timber sample from a client's spec sheet. For anyone not already paying for Lumion, or for teams working in Blender, Unreal Engine, Unity, or Godot, the workflow requires a different tool entirely.

This guide covers how to generate wood and timber PBR textures from text descriptions, with output that imports directly into any renderer. No reference photo required. No renderer subscription.

What Lumion's Wood Preset Covers

Lumion's wood preset is photo-to-PBR: you supply a reference image of the wood species or finish you want, and the tool extracts basecolor, normal, roughness, metalness, and height maps calibrated for Lumion's rendering engine. For architects matching a specific real-world timber — a particular pine species in a structural element, a walnut veneer on furniture — this is a practical workflow when the physical sample is photographable.

Three constraints limit its usefulness outside the Lumion ecosystem:

Photo dependency. If the wood material you need doesn't exist as a physical surface you can photograph — a stylized wood for a game environment, a heavily weathered barn board you're imagining rather than documenting, or a fantasy timber with unusual properties — Lumion's tool cannot generate it from description alone.

Renderer lock-in. The PBR maps output by Lumion are optimized for Lumion's renderer. They don't export as portable PNG sets for use in Blender, Unreal Engine 5, Unity, or Godot. If your project exists in any engine other than Lumion, the materials don't travel with it.

Subscription cost. Lumion subscriptions start at approximately $60-75/month and include many features beyond material generation. For teams who need only a PBR texture workflow, this is a high cost of entry for a single tool.

Text-to-PBR Wood Generation: The Cross-Platform Alternative

Grix generates wood PBR textures from text descriptions with no photo input and no renderer lock-in. Enter a wood description at grixai.com/try — free trial, no login — and receive a ZIP of five calibrated PBR maps: basecolor, normal, roughness, metalness, and height. Generation takes approximately 25 seconds. Maps tile seamlessly and import into any renderer that accepts standard PBR inputs.

Pricing starts at $8/month for the Light plan. A free trial with no account required gives you full-resolution output to evaluate quality before committing.

Wood Species and Finish Types in Prompt Language

The quality of a generated wood texture depends on specificity. These elements have the most impact on output:

Species and grain type. Open-grain hardwoods like oak and ash produce prominent ray fleck and visible pore structure in the normal map. Close-grain hardwoods like maple and cherry produce finer, more uniform normal detail. Softwoods like pine show clear growth ring contrast in the basecolor and pronounced knot structure. Pine knots generate a significantly different normal map pattern from a knot-free hardwood. Specify the species by name for species-appropriate detail.

Cut direction. "Flat-sawn oak" produces the arching cathedral grain pattern familiar from most oak furniture and flooring. "Quarter-sawn oak" produces the distinctive ray fleck pattern — tight, vertical grain lines with high-contrast silver medullary ray stripes. "Rift-sawn" produces straight grain with minimal ray fleck. The grain pattern affects both basecolor appearance and the normal map's surface topology.

Surface treatment. "Unfinished" or "raw wood" produces high roughness values (0.8-0.9) with no specular reflection. "Oil-finished" drops roughness to approximately 0.55-0.65 with a diffuse sheen. "Lacquered" drops roughness further to 0.3-0.45 with visible surface reflection. "Waxed antique" produces a patchy semi-gloss — lower roughness in high-contact areas, higher at the edges. "Fumed oak" shifts the basecolor toward grey-brown while retaining the grain structure.

Age and weathering. "Aged barn board, weathered silver-grey" pushes the basecolor toward grey with high roughness (0.9+) and prominent surface cracking in the normal map. "Water-damaged oak, black staining" adds dark patches at the grain boundaries. "Reclaimed timber, nail holes, saw marks" adds damage detail to both basecolor and normal map that reads clearly at close camera distances.

Wood Prompt Examples for Common Material Needs

Modern architectural oak: "Quarter-sawn white oak flooring, natural oil finish, tight straight grain with ray fleck, 0.55 roughness" — appropriate for contemporary residential and commercial architectural visualization.

Warm residential pine: "Heart pine flooring, warm amber tone, flat-sawn cathedral grain, aged patina, 0.65 roughness" — character-appropriate for traditional or rustic residential environments.

Dark hardwood furniture: "American walnut veneer, fine straight grain, dark chocolate brown with subtle purple undertones, satin lacquer finish, 0.35 roughness" — furniture and cabinetry material.

Industrial reclaimed timber: "Reclaimed Douglas fir, grey surface weathering, visible saw marks, bolt holes, high surface variation, 0.85 roughness" — appropriate for industrial, loft, or character game environments.

Tropical hardwood: "Teak deck planking, golden-brown with grey weathering on surface, fine straight grain, outdoor UV exposure, 0.75 roughness" — exterior surface material for architectural visualization or game environments.

Painted wood: "White painted tongue-and-groove pine cladding, slightly uneven paint application, underlying grain texture visible, 0.8 roughness" — wall cladding material common in residential interiors.

Blender Wood Material Workflow

In Blender, use a Principled BSDF with all five maps connected. For wood, displacement from the height map is valuable for planks and boards where edge bevels and surface undulation read clearly in close-up renders.

Enable Adaptive Subdivision in Cycles. Set displacement to "Displacement and Bump" in Material Properties. Connect the height map through a Displacement node to the Displacement input of Material Output. Scale: 0.002-0.008m for typical wood plank surface variation — wood isn't as deep as brick or concrete, so smaller displacement scale values are appropriate.

For wood grain direction: use a Mapping node on the UV input of all Image Texture nodes to control both scale and rotation. Rotating the grain to run along the length of a plank rather than across it requires rotating the UV mapping 90 degrees for certain plank orientations. Set tile frequency based on the physical plank dimensions — a 200mm-wide oak plank at 1.0 UV scale covers approximately 200mm, so a 3.6m floor width needs about 18 UV repeats.

Grix outputs OpenGL-convention normal maps. Blender expects OpenGL convention natively. No channel flip required on import.

Unreal Engine 5 Wood Material Workflow

UE5 uses DirectX normal map convention (green channel inverted). Enable "Flip Green Channel" in the texture import settings or in the Texture Editor after import for the normal map. All other maps import without modification.

For wood flooring in architectural visualization: use a Material with Virtual Texture support enabled for large floor surfaces. Connect Roughness to Roughness, Metallic (wood is non-metallic, value near 0.0) to Metallic, Basecolor to Base Color, Normal to Normal. For displacement: connect Height to World Displacement through a multiply node (scale 0.1-0.5 for subtle wood surface undulation).

For game environments with wood surfaces: disable displacement and rely on the normal map — Nanite displacement is typically reserved for ground, stone, and heavily textured surfaces where the geometry cost is justified. Wood normal maps from Grix carry enough surface detail for convincing results without displacement in most game contexts.

Grain direction control in UE5: use a TextureCoordinate node feeding a RotateAboutAxis or Sine node to align grain direction with asset geometry. For furniture assets with multiple plank directions, use per-face UV channels and import the wood material at different UV rotation values per surface.

Unity Wood Material Workflow

In Unity's Universal Render Pipeline (URP) or High Definition Render Pipeline (HDRP), import maps from the Grix ZIP to a Lit or HDRP Lit material. Unity uses DirectX normal convention — enable "Create from Grayscale" for the height map if creating a normal from height, or import the provided normal map directly after flipping the green channel in the import settings.

For HDRP: use the Mask Map channel packing tool to combine roughness (R), ambient occlusion (G), detail mask (B), and metallic (A) into a single HDRP Mask Map if needed for HDRP's packed texture workflow. The five individual Grix maps work directly in URP without channel packing.

When Lumion's Wood Tool Makes Sense

Lumion's wood preset is the right tool if you need to match a specific real-world timber from a manufacturer's sample — a client-specified engineered wood flooring product, a custom millwork species, or a facade cladding system photographed on-site. When physical sample matching matters more than portability or cost, photo-to-PBR extraction is the appropriate approach.

For all other wood material needs — custom species, imagined finishes, game environments, multiple engine support, volume production across many wood variations — text-to-PBR generation at grixai.com/try is faster and significantly cheaper. See pricing for plan details.

Frequently Asked Questions

Can Grix generate wood textures without a reference photo?

Yes. Grix generates from text description only — no reference photo required. Describe the species, grain type, surface treatment, and any weathering, and the generator produces a coordinated five-map PBR set. This makes it possible to generate wood materials that don't exist as physical samples.

Do Grix wood textures tile seamlessly?

Yes. All Grix outputs tile seamlessly in both horizontal and vertical directions. This is handled in the generation process — no post-processing or offset blending is needed for basic tiling applications.

What's the difference between flat-sawn and quarter-sawn prompts in the output?

Flat-sawn produces the arching cathedral grain pattern in the basecolor and broader undulation in the normal map. Quarter-sawn produces tighter, more vertical grain with ray fleck detail visible in the normal map. The cut direction is one of the most visible differences in the generated output and affects how the material reads under directional lighting.

Does Grix output OpenGL or DirectX normal maps?

Grix outputs OpenGL-convention normal maps. Blender and most DCC tools expect OpenGL convention — import without modification. Unreal Engine 5 and Unity use DirectX convention — flip the green channel on import or in the engine's texture settings.

Is the free trial output full resolution?

Yes. The free trial at grixai.com/try produces the same resolution output as paid plans. No login required to generate and download the full five-map ZIP.