Real-Time Linear Wall Washer & Grazer Simulator

Stop guessing optical reach on high-rise facades. Simulate vertical illuminance ($E_v$) on textured architectural surfaces from $10\text{ m}$ heights down to base level. Test asymmetric grazing optics ($10^\circ \times 30^\circ$, $15^\circ \times 65^\circ$), fine-tune setback distances, and analyze live DIALux false-color heatmaps—all inside your browser.

I built this lightweight simulator as a fun, interactive playground for beginners and clients to experiment with lighting concepts before diving into heavy DIALux calculations. Drag lights, adjust luminous efficacy, see solid-wall occlusion in action, and get instant lux feedback—complete with one-click PDF reports to guide your final engineering plans.

DIALux Outdoor Linear Wall Washer & Grazer Simulator (10m x 5m)

Outdoor Linear Wall Washer & Grazer Simulator Photometric Engine

10m Height × 5m Width Facade · Physical E_v Point-by-Point Ray Casting

Wall: 10m (H) × 5m (W)

Linear Run: 1 × 1m (1m module)

Connected Power: 18 W (1,800 lm)

100%

Probe: 0 lx | H: 1.5m, X: 2.5m

Physical point-by-point photometric calculation: $E_v = \frac{I(\theta,\beta) \cdot \cos\alpha}{d^2}$ on $10\text{m} \times 5\text{m}$ vertical facade plane.

Linear Luminaire Profile

Power Rating (per 1m module): 18 W

Selected Optical Profile: 10° × 30° Asymmetric

Asymmetric Linear Wall Grazers:

Circular / Narrow / Wide Spot:

Setback Distance (Offset from Wall): 0.15 m

0.05m (Tight) 0.5m 1.0m (Wide Wash)

Aiming Tilt Toward Wall: 0°

0° (Straight Up) 12° 25° (Inward Incline)

Luminous Efficacy:

lm/W

Color Spectrum / CCT: 3000K Warm White

Total System Flux 1,800 lm

Peak Candela ($I_{\max}$) ~4,750 cd

Modular Arrangement (5m Base) 1-Meter Modules

Outdoor Linear Wall Grazer Photometric Report

10.0m (H) × 5.0m (W) Exterior Masonry Facade · Photometric Simulation

Date:

Trench Setback:

Vertical Height Illuminance Gradient ($E_v$)

Height Level	Average Lux ($E_v$)	Min Lux	Max Lux	Uniformity ($U_0$)	Visual Performance

Linear Luminaire Technical Specification

Product Line	Wattage	Optic / Lens	Setback	Tilt	CCT / Color	Total Luminous Flux

Hondel aims to offer high-quality service to each client. Among our most popular LED products, there is a solution for every lighting problem you may encounter. We are experts in the field of Facade lighting. Additionally, we provide our customers with the most transcendent lighting fixtures – no matter how complicated the project might be.