3D Indoor Ray Tracing Tool for Building Radio Propagation

Project & Building Setup

Load Model

Level

Total Levels

Level Name

Height (m)

Floor Material

Ceiling Material

Default Wall Material

Grid Snap (m)

Plan Editing Tools

Wall and window tools place single segments. Room tool click-drags an axis-aligned room shell. Select lets you drag a full segment or edit its coordinates numerically below. Plan units are metres.

Selected Element

Nothing selected.

Material

Type

Materials Library

Name	R	T	A	Scat	Color

R + T + A should normally sum to 1. Scatter is the fraction of reflected power redirected into diffuse scattering instead of specular reflection.

2D Plan Editor Ready Left: draw/select • Wheel: zoom • Middle: pan

3D View Left drag: rotate Right drag: pan Wheel: zoom

Section Cut Z (m)

Show Slabs

Section Readout

Camera Reset

Simulation Controls

TX X (m)

TX Y (m)

TX Z (m)

Frequency (MHz)

TX Power (dBm)

Resolution Preset

Grid Spacing (m)

Ray Count

Max Reflections

Max Transmissions

Min Ray Power (dBm)

Outside Margin (m)

Slice Z (m)

Coverage Min (dBm)

Advanced Propagation, Antennas & MIMO

Field Summation

Bandwidth (MHz)

Subcarriers / Tones

Enable Diffraction

Diffraction Strength

Enable Diffuse Scatter

Scatter Rays / Hit

Max Scatter Events

TX Pattern

TX Azimuth (deg)

TX Elevation (deg)

RX Pattern

RX Azimuth (deg)

RX Elevation (deg)

Reserved Margin

TX Array Nx

TX Array Ny

TX Elem Spacing (λ)

RX Array Nx

RX Array Ny

RX Elem Spacing (λ)

No simulation yet.

3D Probe Query

RX / Probe X (m)

RX / Probe Y (m)

RX / Probe Z (m)

Power: n/a

Point is the interpolated coverage-map power at the exact XYZ coordinate entered, taken from the simulated 3D field grid, and is independent of MIMO matrix. It can be low because that exact grid location is in a local cancellation region.

Probe is a separate receiver result formed by coherently accumulating energy from rays passing through a finite receive region around the probe, so it is not the same as the raw heatmap. For MIMO, it is the total coherent receive power accumulated across all TX-to-RX element pairs.

So Point is a local sample of the smoothed voxel field, while Probe is a coherent sum over a finite 3D receive volume. Use Probe in link budget calculations.

|H|_F is the overall channel strength derived from the MxN channel matrix H using its Frobenius norm, giving overall strength of the full M×N channel matrix after combining all TX-to-RX element terms.

In |H|_F, the strongest mode is the largest single channel term or dominant mode.

Coverage Colour Bar

White = TX power

-200 dBm

Model Elements0Walls / windows

Simulation Voxels0Grid cells in 3D result

Domainn/aXYZ extents

Peak in Slicen/aMax dBm on visible slice

Probe Resultn/aQueried point / probe readout

MIMO Channel1×1Probe channel matrix summary

Signal Heatmap Slice

3D Signal Heatmap Left drag: rotate Right drag: pan Wheel: zoom

Coverage Plot & Query Profile