Quick Terrain Modeler Version 8.4.4 Release Notes

Applied Imagery is pleased to announce the release of QT Modeler v8.4.4. This update introduces time-saving surface creation tools, editing enhancements, and a complete overhaul of ATAK and route export workflows.

Easy Surface Generation

QTM v8.4.4 introduces a streamlined workflow for generating surfaces and subsetted point clouds directly from existing filtering tools.

Two new buttons — Generate Surface and Generate Points — have been integrated into the discrete, continuous, and multivariate filtering workflows. These additions make it significantly faster to create surfaces or filtered point cloud outputs without interrupting the editing process.

This enhancement is especially valuable for point cloud-centric workflows where speed and efficiency are critical.

Consistent Point Cloud Classification Colors

Point cloud classification coloring has been improved to ensure classification values always display with consistent colors.

Previously, colors could shift depending on how many classification values existed or if values were added or removed. In v8.4.4, a given classification value will always retain the same color mapping for improved clarity and workflow consistency.

Interactive Selection Area Node Editing

Selection areas now support interactive node editing.

Users can double-click a selection area to enter editing mode. The selection area turns yellow and editable nodes appear as large points. 

From there:

• Drag nodes to reposition them

• Right-click to add nodes

• Right-click to delete nodes

This functionality currently supports:

• Z Polygon selection areas

• Screen Select selection areas

These improvements make refining selection boundaries much faster and more intuitive.

Completely Redesigned ATAK Export Workflow

QTM v8.4.4 includes a fully redesigned ATAK export interface.

The new export system makes it much easier to understand which scene elements are being exported while also giving users precise control over included content.

Route Export Improvements

ATAK route exports have also been significantly improved:

• ATAK checkpoints are now embedded directly into routes

• Routes navigate using checkpoints rather than only turn points

• Distance calculations now reference the next checkpoint

This creates a more intuitive and functional navigation experience inside ATAK.

Miscellaneous Tweaks and Enhancements

Framework & Core Updates

• Complete framework overhaul including updates to:

  • GDAL

  • PDAL

  • BLOSC

  • Curl

  • Tile DB

  • Abseil

  • AEC

  • Archive

  • AVIF

  • Geos

  • gssapi

  • libbz2

  • Flexera

• Added hotkey information to select menu items

• Raindrop trickles are now auto-numbered

• Adjusted stencil rendering weights

• Expanded OBJ vehicle library (GOV version only), including additional ships

• Improved vector width rendering for terrain-hugging textures

• Fixed QT Explorer/GRiD authorization link issues caused by recent GRiD updates

• Improved vector layer scaling at high incidence angles

• Marker Manager column resizing behavior updated

• Model Manager redesigned to separate visibility from context menu selection and improve column resizing behavior

Classification Improvements

Several classification workflow enhancements have been added:

• Improved color handling when more than 29 classes are defined

• New class tool only rebuilds the color map when necessary

• Real Time filter layers now auto-update

• Set Class tools now support selective class changes

• Added “Visible Points” option to Set Class workflows

• Standardized ASPRS class definition handling

• Classification & Extraction tools no longer depend on selection areas when determining available classifications

Legend Management Enhancements

Legend handling has been fully revamped under the hood.

Updates include:

• Legends now save inside QTT/QTC models

• Fixed slope filter legend saving to vertex colors

• Fixed Continuous Change Detection legend behavior

• Snapshot selections can now restore legends correctly

Multi Variate Filtering Updates

Multi Variate Filtering received several workflow improvements:

• Prompt to clear active filter channels when closing MVF

• Added “Hide Other Points” option

• Added “Export Points” functionality

• Fixed rotate grid behavior

Additional Enhancements

Additional quality-of-life improvements include:

• Improved texture auto-contrast calculations

• Better file name display during coordinate system conversion

• Removed node limits from routes

• Improved DEM repair spike/well removal handling

• Water level and volume calculation GUIs now auto-populate with selected models

• Refactored range rings and bounding box GUIs

• Expanded geodetic correction support for Pseudo-Mercator

• Grid Statistics now support native units in geodetic mode

• Mean and standard deviation values are now displayed for calculated statistics