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LumenForge Lighting DesignerLighting design utility

Design inputs

Project & site

Project name

Site width m

Site depth m

North rotation °

Calculation units

Outdoor base target lux

The site automatically expands to contain buildings, paths and luminaires.

Building profile

Building preset

Footprint profile

Position X m

Position Y m

Width m

Depth m

Ceiling height m

Workplane height m

Activity / task

Target illuminance lux

Ceiling ρ

Wall ρ

Floor ρ

Drag from one corner to the opposite corner. Live width and depth dimensions appear while drawing.

Pathways & side areas

Luminaires

Active fixture type

Placement method

Quantity 0 = auto

Edge offset m

Calculation settings

Calculation scope

Grid spacing m

Maintenance factor

Show false-colour lux map Show point lux values Show calculation grid Building walls isolate indoor/outdoor light

Results are engineering estimates. Final designs require verified manufacturer data, applicable codes, emergency-lighting checks and professional review.

Project files & outputs

IlluminanceTarget 500 lx

00.25×1×2×4× target

Luminaire Schedule

Quantities, load and imported photometry used in this project.

LumenForge Lighting Designer — Lux & Photometry Studio

Design building and site lighting with fixture layouts, IES photometry, lux maps, uniformity checks, schedules, CSV/JSON exports and reports.

What this tool does

LumenForge is a browser-based concept lighting design studio. It models building footprints, pathways and side areas; places parametric or custom luminaires; imports LM-63 IES photometry; calculates point-by-point illuminance; and presents plan, 3D concept, photometry, schedule and report views.

When to use this tool

Use LumenForge when you need an early lighting layout, lux comparison, fixture schedule or photometry study before confirming products, code requirements and final site conditions.

Who this is for

Lighting designers and engineers preparing early layout studies
Architects and facility teams comparing fixture placement, targets and connected load
Students and educators learning how geometry, photometry, maintenance factors and fixture layouts affect illuminance

How to use this tool

Set the project name, site dimensions, north rotation, building footprint, workplane height, activity and target illuminance.
Add pathways or side areas and set their dimensions, rotation and lux targets.
Select a fixture type, create a custom luminaire, or import an IES file; then generate an auto-grid, pathway row, perimeter layout or place fixtures manually.
Choose the calculation scope, grid spacing, maintenance factor and display options, then run Calculate.
Review average, minimum and maximum lux, uniformity U₀, target coverage, connected load, the false-colour map and the calculation assumptions.
Use the photometry, luminaire schedule and report views, then export project JSON, lux-grid CSV, schedule CSV or a PNG plan, or print the report.

Inputs

Inputs include site and building geometry, footprint profile or custom outline, ceiling and workplane heights, activity and target lux, surface reflectances, pathways and side areas, fixture quantity and placement method, luminaire lumens, wattage, beam angle, CCT, CRI, mounting height, IES photometry, calculation scope, grid spacing and maintenance factor.

Outputs

Outputs include plan and 3D concept views, photometry visualization, false-colour illuminance maps, average/minimum/maximum lux, uniformity U₀, target coverage, fixture count, connected load, power density, luminaire schedules, a printable calculation report, project JSON, lux-grid CSV, schedule CSV and PNG plan export.

Example use cases

Compare an auto-generated workshop layout against a 500 lux workplane target.
Import manufacturer IES data and inspect its distribution before placing luminaires.
Study pathway illumination, target coverage and connected load for an early site concept.

Limitations and responsible use

This is a concept-level engineering calculator, not a certification or permit package. Generic fixtures use a rotationally symmetric cosine distribution based on beam angle. Imported IES files use their LM-63 candela table, while reflectance influence is represented through an estimated utilization factor rather than a radiosity calculation. Verify manufacturer photometry, mounting conditions, emergency-lighting requirements, applicable regulations, electrical constraints and final results with a qualified lighting professional.

Projects are saved in the browser and can be exported as JSON for portability. Browser storage may be cleared, so export a project file when a durable copy is needed.

Frequently asked questions

Can I use a manufacturer IES file?

Yes. Use Import IES in the Luminaires panel. The tool reads the file locally and uses its LM-63 candela data for the photometry and point-by-point calculation.

Does this replace a final lighting or code review?

No. It supports early design exploration and documentation. Final designs still require verified product data, applicable code and emergency-lighting checks, site conditions and professional review.

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