XGRIDS Pro Guide™ / Module 9: LCC Studio

9.8 LCC Studio Tools

How to navigate a finished model, set a comfortable camera, choose a reconstruction mode, and tune the processing settings. For scene tools, viewpoints, and publishing, see 9.9 Scene Editor Tools; for point-level editing, see 9.10 Model Editor Tools.

Section 1

Navigating Your Model

When reconstruction finishes, you open the model in the LCC Studio Viewer or the Scene Editor. The first thing most people hit is the camera. It shoots past the model on every key press and drifts above and below the surface. That is a speed setting, not a broken model, and it is the single most common stumbling point for a new user.

Camera flying past the model? Lower the Camera Speed. Camera Speed sets how far each key press or drag moves you, and a new scene often opens too fast for an indoor space. Open the view toolbar, drag Camera Speed down, or hold Ctrl and scroll the wheel down. For a walk-through that cannot pass through walls, switch to Avatar mode, covered below.

The three navigation modes

Every model can be explored three ways. Switch between them with the Switch View control in the toolbar.

Mode	Best for	How you move
First-Person	Free movement and close inspection	W, A, S, D to move, mouse to steer, Q and E to drop and rise, Shift to sprint. The scroll wheel or the Camera Speed slider sets the pace.
Pivot	Orbiting one object or area	Left-click drag to rotate around a point, right-click drag to pan, scroll to zoom, double-click to recenter on a new point.
Avatar	Walking the space like a person, best for clients	Click the floor to walk there. W, A, S, D to move, Space to jump, Shift to sprint. With the Collider on, you stay on surfaces instead of passing through them.

First-Person and Pivot work in both edit and preview. Avatar works in preview, which is the experience your clients see in a published link.

Camera Speed: the fix for flying past the model

Camera Speed controls movement speed in First-Person and Pivot. The top-menu default is 1X. Raise it with the speed control or by holding Ctrl and scrolling the wheel. For indoor and detailed spaces, 2X to 4X is typically as fast as you need; higher values suit large outdoor sites. The value is saved and carries from one project to the next, so once a scene feels right the next opens at the same pace.

Avatar mode for a client-ready walk-through

Avatar mode turns the model into a walking tour. The viewer clicks the floor and the character walks there, the way a person moves through a building, so there is no flying and no passing through walls. Keep the Collider toggle on so the camera follows floors and stops at walls. This is the mode to point a non-technical viewer to.

Pro Tip

When you share a published link with a non-technical client, add one line of instruction: "Click the walking-person icon to walk, then click the floor to move. If it moves too fast, drag the speed slider down." That single sentence prevents the most common viewer complaint and saves a support call.

Get back to the start: Origin Point

If the view drifts off the model, click Origin Point to jump back to the scanner's starting position. In Pivot mode the same control reads as Reset Center Point and recalibrates the orbit center.

View toolbar reference

Control	What it does
Switch View	Change the navigation mode: First-Person, Pivot, or Avatar.
Camera Speed	Set movement speed for First-Person and Pivot. Default 1X; 2X to 4X is typically plenty indoors. Adjust with the speed control or Ctrl and scroll.
Origin Point	Reset the camera to the capture start position.
Point Cloud	Toggle between the rendered model and a point-cloud view to inspect density and structure.
Collider	Toggle collision. On, the camera follows surfaces and stops at walls, which Avatar walking needs.
Height Filter	Hide the model above or below a chosen height for a top-down or floor-by-floor view.
Screenshot	Capture the current view as an image.
Grid	Show or hide a reference grid at the model base.
Capture Trajectory	Show or hide the scan path recorded during capture.
Environment Data	Show or hide the captured surroundings.

To publish the model and share a link, see 9.9 Scene Editor Tools. To build a full guided tour with viewpoints and annotations, see 9.12 Virtual Tour Workflow.

Section 2

Reconstruction Modes

LCC Studio builds a 3DGS model in one of several modes. Choose the mode when you create the project on the My Models page. The mode is fixed at reconstruction and cannot be changed without reprocessing.

Mode	What it does	Inputs
Single Model	Turns one continuous scan into one model. The standard starting point for any project.	One device's capture. Every current device is supported. A K2 single-scene capture is capped at 90 minutes.
Map Fusion	Stitches up to 10 scan segments into one model, for sites too large for one battery or one session.	Multiple segments from the same device type. L2 Pro 16-line and 32-line versions cannot be mixed.
Aerial-Ground Map Fusion	Merges drone aerial imagery with a ground scan into one model covering site, roof, and interior.	Ground scan, drone images, and the per-pad takeoff and landing photos. All three are required.
Aerial Reconstruction	Builds a model from drone photos alone, with no ground scan.	100 to 10,000 JPG or JPEG images at a consistent resolution above 1024 x 768.
Video Reconstruction	Builds a 3DGS model from a video file, extracting frames automatically.	One MP4, MOV, or WEBM video.

Premium features. Map Fusion, Aerial-Ground Map Fusion, Aerial Reconstruction, HD Enhancement, Spatial Recognition, and the full set of export formats require the Premium edition. Single Model reconstruction and local viewing are available in the free edition.

Loading capture data is the same across modes. The cleanest path is to connect the device by USB and let LCC detect and import the project for you. If you load by hand, point LCC at the capture project folder, not a sub-folder, and keep the full path free of spaces. For deep coverage of each mode, see 9.3 Map Fusion and 9.4 Aerial-Ground Fusion.

Section 3

Reconstruction Settings

These settings are chosen when you create the project and lock at reconstruction. Confirm each one before you click Start, because changing it later means reprocessing the whole scan. The table below is the working cheat sheet: what each setting does, and what to use.

Setting	What it does	What to use
Reconstruction Quality	Sets the detail-versus-time tradeoff. Fast is lowest detail and quickest. Standard balances detail and time. Slow gives the highest detail, takes the longest, and uses the most GPU memory.	Standard for client work. Slow for final, large-screen, or detail-critical jobs. Fast for quick previews only.
Portability	Optimizes the model to load and run on phones, tablets, and the web viewer. Turning it off gives more realistic lighting but can stutter on mobile.	On for any tour or shared link. Off only for desktop-only work that needs maximum lighting realism.
Maximum Gaussian Points	Caps the number of points in the model. Set too high, it can overflow GPU memory in a single model.	25 million or below for a single model on a consumer GPU. In fusion modes the cap applies per block and the system adjusts it, so higher values have little effect.
Spatial Recognition	Reads an indoor scan and builds a structured floor plan that the 3D Layout and Scene Report tools use.	Turn it on at reconstruction if you want a floor plan. It cannot be added afterward. Premium and indoor only.
Coordinate System Conversion	Georeferences the model when the scan carries RTK data. It replaces the older manual RTK toggle and decides automatically: with valid RTK it converts, without it the model still builds.	Leave it on None for indoor scans. Pick a target system only for outdoor RTK work that must align to GIS or BIM data.

Want a floor plan? Decide before you process. Floor plans come from LCC Studio's own 3D Layout tool, which depends on Spatial Recognition being on during reconstruction. A scan processed without it has no floor plan, and the only way to add one is to reconstruct again with Spatial Recognition checked. See 9.11 Floor Plans.

Section 4

Advanced and Debug Options

These options tune the reconstruction for specific problems. Leave them at their defaults unless the condition described applies, because the wrong choice adds time or lowers quality.

Option	When to use	What it does
Exposure Optimization	Floating artifacts appear where lighting changes sharply, such as an indoor-to-outdoor transition.	Evens out exposure. Can slightly soften very bright or very dark areas. Default off.
PPR (Point Cloud Participation Rate)	Sky or background bleeds into tree or building edges in an outdoor scene.	Lower it to reduce edge bleeding. Note that bleeding is usually a capture-angle problem, so shooting from more heights and angles fixes it at the source.
SLAM Special Mode	The capture environment is unusual or the reconstruction is failing.	Auto picks the strategy and is recommended. Robust adds interference tolerance. None favors precision in stable, clear conditions. Narrow Scene is only for tunnels, mine shafts, and long corridors, and will fail in normal spaces.
Layering Optimization	A large loop path shows misalignment, ghosting, or a wall splitting into two layers.	Corrects drift through loop closure. On by default for PortalCam captures. Turn it off for repetitive layouts such as cubicles or identical floors, where it can read one place as another.
Low-Memory Mode	Reconstruction fails for lack of RAM.	Writes intermediate data to disk to lower peak memory. Single Model mode only. Extends processing time.

Check the data before you commit hours

After you load the capture and before you start, click Point Cloud Preview to see the capture trajectory and a rough point cloud. LCC checks the data and flags problems you can still fix in the field or in setup, before you spend hours on a reconstruction that was never going to succeed. The preview navigates the same way as the Scene Editor.

Two ways a reconstruction fails before it starts. Do not close LCC Studio while a model is generating, because closing it interrupts the job and the work restarts from the beginning. And reserve at least twice the capture size in free disk space, on an SSD kept separate from the install directory, or the run can fail partway for lack of room.

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