Rockfall Simulator
Terrain
Add Rocks
Simulations
Export
Zoom
Clear Rocks
Pc
Toggle Grid
Seeding
Close
Use the modal to drop/select an OBJ. You can re-open it from “Terrain”.
Or pick again:
Friction (0–1)
Restitution (0–1)
Base colour
Opacity (0–1)
Lighting
Ambient
Hemisphere
Directional 1
Directional 2
Seeder
Seeding Mode
Point
Line(s)
Polygon
Pick Start: OFF
— not set
Count
Jitter (m)
Line: OFF
Clear Line
Import lines
Spacing (m)
Rocks / station
Lateral jitter (m)
Import Polygon
Point count
Or spacing (m)
Height offset (m)
Update Points
Rock settings
Scale range (m)
to
Density (kg/m³)
Rock Type
Default (irregular sphere)
Multiple…
View
Random orientations
Import Rock
Spawn Rocks
Locate rocks
Show Trails
Colouring
Rocks
Always grey (default)
By Run ID
By Rock Type
By Rock ID
By Size (gradient)
Trails
By Velocity (blue→red)
By Run ID
By Rock Type
By Rock ID
By Size (gradient)
Runs
Density Bars + Runout
Show Bars
Generate Bars
Export Bars
Cell size (m)
Clamp to terrain
Bake Simulation
Enable Replay
Export Replay
Import Replay
Runs to export
All
None
If none are checked, exports include
all
runs.
Export Start Points
Export End Points
Export Trajectories
COPC URL
Load
Toggle
Select Rock Types
OK
Cancel
Choose a terrain OBJ
Drop an .obj anywhere in the box, or click to select.
Drop file here
Generate mesh from survey or use example
CSV / ASC / .00x → triangulate in ROI → add to scene
Close
Density
max
mid
min
Velocity
max
mid
min
Close
Simulated Rocks
Refresh
Close
#
Type
Run
Start Pos (projected)
Current/End Pos (projected)
Distance from Start
Max Speed (m/s)
Actions
Line Offset (m)
X
0.0
Y
0.0
Z
0.0
Reset
Close
Rock Modeler
Choose Base
Close
Name
Subdivisions
Spherify (0–1)
Noise Amp (m)
Noise Freq
Smooth Iters
Axis scale
Reset
Save as Rock Type
Tip: “Subdivisions” is your vertex count knob. Higher = more detail.
Generate mesh from survey
Input CRS
EPSG:27700 (OSGB36 / British National Grid)
EPSG:4326 (WGS84 lon/lat)
Select survey file:
Draw ROI
Clear
Triangulate
Max edge (m)
100
Tip: tighten this if you see long skinny triangles spanning gaps.
Example
Cancel
OK
×
Rock Info
ID
—
Type
—
Mass (kg)
—
Width (m)
—
Length (m)
—
Max Velocity (m/s)
—
Avg Velocity (m/s)
—
Isolate
0
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