OpendTect Plugins

This is the source code for a collection of plugins for the open source seismic interpretation system OpendTect. All code is provided under the terms of the GNU General Public License Version 3.

Code development in the main branch is for OpendTect 2026. For earlier versions of OpendTect see the appropriate branch.

For details please see the documentation or click one of the links below.

Plugins

PLUGIN	DESCRIPTION
AVOAttrib	Six attributes derived from reflection intercept and gradient
AVOPolarAttrib	Six attributes derived from AVO Polarization in the AVO Intercept-Gradient crossplot
ExternalAttrib	Calculate attribute using an external process such as a python script
GeopackageExport	Export OpendTect data to a GeoPackage database
GradientAttrib	Calculate inline, crossline or z gradient using rotationally invariant operators
Grid2D3DHorizon	Grid 2D and 3D horizon interpretation
LocalAttrib	Implementation of Fomel's local attribute concept, only Local time-frequency decomposition for now
Mistie	Estimate/edit/apply Z shift, phase rotation and amplitude corrections to 2D and 3D seismic data
MLVFilter	Structure preserving filtering
RSpecAttrib	Recursive time-frequency decomposition
WMTools	Miscellaneous tools for OpendTect, including generation of data extent horizon, convex hull polygons

Building and Installation

The Pixi package manager can be used to obtain all required dependencies and build OpendTect plugins for OpendTect 2026. All build files are written to the build-pixi folder. The built plugins are written to the inst/2026 folder.

Note for Windows: you will need to install msvc2022 64 bit (>= v17.8.4 - free community edition is sufficient).

Note for macOS: the supplied pixi.toml file is only set up for Windows and Linux. Extending it to macOS should be relatively simple if you have access to that hardware.

Install Pixi

Linux and macOS

  curl -fsSL https://pixi.sh/install.sh | sh

Windows

Download installer

Or run:

powershell -ExecutionPolicy ByPass -c "irm -useb https://pixi.sh/install.ps1 | iex"

Git Clone the OpendTect-Plugins Main Branch

Assuming git is installed, open a shell window and enter:

git clone -b main --depth 1 https://github.com/waynegm/OpendTect-Plugins.git

This will create a folder called OpendTect-Plugins with the source code.

Configure

To configure the build, open a shell:

• cd into the source code folder:

 cd OpendTect-Plugins

• Edit pixi.toml and change the activation.env table so that the OpendTect_DIR variable points at your OpendTect 2026 installation.
• In a shell enter:

pixi run config

Build

To build, open a shell, change to the source code folder (unless already there) and enter:

pixi run build

Run

To run OpendTect with the plugins loaded, open a shell, change to the source code folder (unless already there) and enter:

pixi run release