XGRIDS Pro Guide™ / Module 9: LCC Studio

LCC Studio Tools

Reference for every reconstruction mode, setting, advanced option, and Viewer navigation control in LCC Studio. For Editor tools (selection, measurement, annotations, viewpoints, color grading, 3D Layout, Scene Reports, publishing, keyboard shortcuts), see 9.9 LCC Editor Tools.

Section 1

Reconstruction Settings

These settings appear when creating a new project in LCC Studio. They apply to all reconstruction modes. All settings must be configured before clicking Start Reconstruction. Projects queued for processing cannot be reconfigured without deleting and recreating them.

Do not close LCC Studio during reconstruction. Closing the application while a model is generating interrupts the process. When you reopen LCC Studio, interrupted projects display a failure status. Click Continue or Restart to re-queue. Closing the application does not save processing progress; the SLAM phase restarts from the beginning.

Disk space requirement. Reserve at least 2 times the captured project data size as free disk space before starting reconstruction. Insufficient disk space causes reconstruction failure or interruption mid-run. Set the Project Path to an SSD outside the installation directory for maximum performance.

Section 2

Reconstruction Modes

Single Model

One uninterrupted scan session from a single device. The standard starting point for any project. Supports all four current devices: L2 Pro, K2, K1, and PortalCam.

K2: Single Model is the only reconstruction mode supported for K2. K2 single-scene capture is capped at 90 minutes. Spatial Recognition is supported within Single Model for K2.

Advanced Features in Single Model: Spatial Recognition (indoor architectural element identification for BIM), HD Enhancement (supplementary high-resolution photos for texture quality), and Low-Memory Mode (offload intermediate data to disk).

Map Fusion

Combines up to 10 scan segments from multiple sessions or battery changes into one unified model. All segments must be from the same device type. L2 Pro 16-line and 32-line versions cannot fuse together. PortalCam Map Fusion is supported in LCC Studio.

K2: not currently supported. Expanded K2 mode support is documented as "coming soon in a future version" by XGRIDS.

Aerial-Ground Fusion

Merges drone aerial imagery with ground scan data for complete exterior and interior coverage in a single model. Ground data accepted from L or P series devices (L2 Pro, K1, PortalCam). Aerial data: 100 to 10,000 JPG/JPEG images, resolution greater than 1024 x 768, consistent across all images.

Hardware: AMD Ryzen 9 9950X equivalent 16-core CPU, 64 to 128 GB RAM, NVIDIA RTX 3090 minimum (RTX 4090 recommended). Processing time 24 to 48 hours or longer.

K2: not currently supported.

Aerial Reconstruction

Processes ultra-large-scale scenes from drone-only imagery with no ground scan data required. Accepts 100 to 10,000 JPG/JPEG images at identical resolution greater than 1024 x 768 pixels. No Lixel device required.

Section 3

Quality and VRAM Settings

Processing Quality

Setting

Use Case

Impact

Fast

Internal previews, draft client reviews

Lowest VRAM and fastest reconstruction. Lower signal-to-noise ratio. Not appropriate for final delivery.

Standard

Default for first-attempt processing and most client deliveries

Balances quality with processing time. Approximately 20:1 processing time ratio on recommended hardware (RTX 3070, 64 GB RAM).

Slow

Final deliverables requiring maximum visual fidelity

Significantly increases VRAM consumption and extends processing time. Highest signal-to-noise ratio.

Maximum Gaussian Splats

This value sets a ceiling on the number of oriented ellipsoids (Gaussian points) the reconstructed model can contain. The correct value depends on which reconstruction mode is in use.

Single Model: The value directly limits the total point count of the final reconstruction. For consumer GPUs, keep below 25M to avoid VRAM overflow, memory failure, or degraded reconstruction quality.
Map Fusion, Aerial-Ground Fusion, Aerial Reconstruction: The value applies per chunk, not to the total model. LCC auto-adjusts chunk size based on overall scene scale. Values above 25M have minimal effect.

Portability

Portability simplifies the lighting model in the reconstruction to enable viewing on mobile devices and WebGL platforms. This setting is fixed at reconstruction time and cannot be changed after processing without reprocessing the entire scan.

On: Reduces model size, improves smoothness, optimizes for most use cases including mobile rendering quality.
Off: Enables more realistic lighting effects. May cause performance degradation or stuttering on lower-end hardware. Required for USDZ export.

PPR (Point Cloud Participation Rate)

PPR controls how heavily the LiDAR point cloud geometry influences the Gaussian Splatting model during reconstruction. Higher values pull the Gaussian ellipsoids closer to the actual LiDAR geometry, improving structural accuracy but increasing the risk of sky and edge bleeding in outdoor scenes where the LiDAR scan angle is limited.

Edge bleeding at outdoor boundaries is primarily caused by limited scanning angles, not PPR setting alone. Capturing from multiple heights and angles during the scan prevents the issue at the source. Lowering PPR corrects the symptom in post-processing but does not recover geometry that was never captured.

Section 4

Advanced Processing Options

These options appear in the debug and advanced settings panel when creating a project. Enable only when the specific condition described applies. Incorrect use increases processing time or reduces output quality.

Option

When to Use

Behavior

Exposure Optimization

Floating artifacts appear in scenes with dramatic lighting changes (indoor-to-outdoor transitions)

May cause slight detail degradation in very bright or dark areas. Default Off.

RTK Data: Auto

Default. Use whenever RTK data is available and trustworthy.

Prioritizes RTK data. If anomalies are detected, automatically disables RTK to ensure stable results.

RTK Data: Disabled

RTK is causing reconstruction instability

Ignores RTK data entirely. Results will not contain absolute coordinate information and cannot be used for Map Fusion or Aerial-Ground alignment, but avoids issues caused by anomalous RTK data.

Special SLAM Mode: Auto

Recommended default for most scenarios

Intelligently selects the best reconstruction strategy. Prioritizes high-accuracy mode first; switches to Robust mode if vibration or interference causes failure.

Special SLAM Mode: None

Stable devices and clear environments

Prioritizes high modeling accuracy. Capture with vibration or interference may cause reconstruction failure.

Special SLAM Mode: Robust

Most scenarios with moderate interference tolerance

Default. Balances accuracy and stability.

Special SLAM Mode: Narrow Scene

Tunnels, mine shafts, long corridors

Will fail in normal environments. Use only for the specific narrow scenarios listed.

Low-Memory Mode

Reconstruction fails due to insufficient RAM

Single Model mode only. Offloads intermediate data to disk, reducing peak memory at the cost of increased processing time.

Section 5

Viewer Navigation Modes

The LCC Studio Viewer provides three navigation modes. Switch between them using the Mode Switch button in the Viewer toolbar or View Controller in the Editor. Measurement and annotation tools are available in Flythrough and Pivot modes. They are not available in Avatar mode.

Flythrough Mode

First-person camera. Mouse steers the view direction. Keyboard moves the camera through the scene. Default mode for internal reviews and detailed area inspection. Use WASD keys to move; scroll wheel adjusts movement speed. Hold Shift to sprint. Use Q and E to descend and ascend.

Pivot Mode

Camera orbits around a fixed pivot point. Left-click drag rotates the view. Right-click drag pans. Scroll wheel zooms. Double-click sets a new pivot center at the clicked point. Best for exterior review, inspecting a specific object from all angles, and initial scene orientation after processing.

Since panning the camera also shifts the pivot point, switching suddenly from Flythrough to Pivot mode may cause erratic rotation due to center offset. The Origin Point function becomes Reset Center Point in Pivot mode; click to recalibrate the camera position and restore the model center.

Avatar Mode (View Mode Only)

Third-person character walks through the scene with collision detection enabled. Space bar to jump. Shift to accelerate. Left-click a target location to auto-walk. Ideal for client walkthroughs and presentations where the camera should behave like a person moving through the building. Measurement and annotation are not available in this mode.

Viewer Toolbar Functions

The LCC model viewing toolbar includes Origin Point, Point Cloud Toggle, View Annotations, Measurement, Perspective Switching, Scene Report, and Height Filter. The Origin Point button resets the camera to the scanner's initial capture position. Point Cloud Toggle switches to a point cloud view for structure, density, or precision inspection.

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