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Preparing semantic model…
SplatStroll Avatar
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JA
SplatStroll Avatar
Test Build
Select quality, choose a character card, and start
Quality
Low
Low-spec
0.75x / 500K
Medium
Laptop PC
1.00x / 750K
High
Desktop PC
1.00x / 1000K
Ultra
High-end GPU
1.00x / 2500K
Character
Use the left card for the built-in avatar, the right card for a new VRM or FBX import, or choose an existing custom avatar from Saved Avatars below.
Haruka
Drop a .vrm or .fbx file to add it
Browse...
Add New Avatar
Import a local VRM or Mixamo-rigged FBX here to use it as a new character choice.
Saved Avatars
No saved avatars yet. Add one with the panel above.
Built-in Scenes
Choose a preset scene to open on startup.
Recent Local Scenes
Recent local reopen is unavailable in this browser.
Start without a local file to open a preset scene.
Start
Ground build
Auto
WebGPU
CPU
Preparing...
--
splats
--
cells
--
MB
--
seconds
SplatStroll Avatar
--
splats
--
cells
--
build
Double-click to place avatar
Click any spot on the ground
Drag
Rotate camera
Scroll
Zoom in / out
Alt + Scroll
Change FOV
WASD
Move camera
Shift
Fast move
Space
Jump
C
Switch view (1st / 3rd person)
F
Fly camera mode
R
Capture photo
H
Toggle UI
Ctrl + Click
Measure distance
Esc
Cancel / clear destination
Drop file to open now
.rad .sog .splat .ply .spz
Press Ⓐ to place the avatar
Ⓐ again to confirm / Ⓑ to cancel
Double-tap to place avatar
Tap any spot on the ground
Drag
Rotate the camera
Pinch
Zoom in or out
Scene
Scenes
Close
Choose a preset scene, reopen a recent local file, or open a new one.
Controls
--
Scene
Flip Vertical: Off
Save .ssa Project
No share URL
Share
Copy URL
Share the deployed OGP page URL for the current preset scene.
Scene Size
1.00
Apply
Render Scale
1.00
Draw Splat Limit (K)
1000K
LCC2 Streaming
Mode
Auto (quality)
Custom
Detail Ceiling
100%
Fine Detail
Don't fetch
When stopped
Always
Stationary Wait
0.75s
Reset to recommended
Operation
Fly Control
Game FPV
Drone Mode 2
Drone OSD / Capture
Virtual Pad
Touch position
Fixed (bottom-left)
Display
Show ground cells
Show wall cells
Show play-area boundary wall
Show probe trail
Ground Build
Ground Build Settings
Closed
Span Analysis Opacity
0.20
Used only for coarse/fine area classification. Higher values ignore thin splats when deciding span.
Ground Min Opacity
0.06
Splats at or above this opacity contribute normally to ground extraction.
Fine Recovery Opacity
0.01
Thin splats between this value and Ground Min Opacity are restored only inside fine regions.
Filter isolated false ground
Removes small floating or underground islands disconnected from surrounding ground.
Rebuild Ground
Storage
Clear saved data
Deletes all locally saved preferences and scene history.
standalone
© 2026 STUDIO DUCKBILL LLC
Uses
Three.js
&
Spark.js
.
Third-party software notices
Gamepad
×
Fly control mode
Drone Mode 2
Game FPV
Walk camera
Third-person
First-person
Capture mode
Photo
Video
General
Flight
Render video
×
Presets
Export method
Cancel
Render
PREVIEW
Stop
A
⇄
B
Overlay
Fade
Split
Mix
50%
Time
s
▶
Axis
Vertical
Horizontal
Line
0 px
1 px
2 px
3 px
4 px
6 px
8 px
⇆
JUMP
Drop 3DGS file here
.rad .sog .splat .ply .spz
Complete Photo Position Files
Add the missing COLMAP file to finish drawing the photo frustums.
Drop a .txt or .zip file here, or browse for it.
Cancel
Browse...
⌂
Avatar
Auto Stroll
View
Third-person
First-person
Follow camera with gaze (L)
Play Area
Shows a wall at the edge of the movable area and keeps you inside.
Show heatmap
Semantic Map Generation
Set Current Position as Initial View
NPC Spawn Count
0
Camera
Effect
Field of View
FOV
55 deg
Alt + scroll to adjust
Auto Camera Work
Auto Camera Work
Cinematic camera during Auto Stroll
Camera Range
Far
Near
Room
Photo Positions
Show photo positions
Browse...
Drag and drop COLMAP cameras.txt and images.txt, or a folder containing them.
Sky
Sky Image
None
Partly Cloudy
Blue Sky
Cloudy
Cloudy Sunset
Overcast
Splat Color
Enable Splat Color
Type
Height
Terrain Relief
Colormap
Turbo
Viridis
Heat
Ice (translucent)
Palette
Blue–Amber
Teal
Grayscale
Strength
100
Recolor splats by relative height. Single-splat scenes (PLY/SOG/SPZ) for now.
Post Effect
Enable Post Effect
Effect
Anime
Sumi-e
Pastel
Effect Settings
Depth of Field
Enable DoF
AutoFocus (avatar distance)
Focus Distance
4.0 m
Blur Strength
30
Vignette
Enable Vignette
Intensity
40
Simulation
Off
Layers
Off
Layers
×
+ File
+ Folder
Experimental
Webcam Upper Body
Debug Overlay
Lip Sync
Video
Audio
Dummy Pose (dev)
Head Yaw
0
Head Pitch
0
Chest Twist
0
Head-Coupled Perspective (V)
HCP 有効
Parallax 移動
Off-Axis 感度
1.0
Parallax 強度
0.3
Head X
0
Head Y
0
PoC Benchmark
Run PoC Benchmark
?
FLY — WASD move · E/Q up/down · Shift fast · F exit