DIRSIG

The Final Release of DIRSIG 4.4.2 is out. This release is primarily a maintenance release to address a few bugs in the 4.4.1 release. The following is a summary of fixes and features added in this release: Significant performance improvements to LIDAR simulations (~20x faster) Adaptive sampling support in the Graphical User Interface (GUI) Data-drive focal plane support in the Graphical User Interface (GUI) Improvements to graphical "Simulation Preview" tool New extended-area, directly viewable sources New "Refinery" scene 10 new demonstrations Bug fixes related to using the "Classic" atmosphere model Improved compatibility with MODTRAN5 2.0.0 Issues with platforms on space based platforms Issues with platforms on the ground looking at exo-atmospheric objects Scene Editor upgrades New "General" tab with preview image Option for implicit scene "base directory" using the location of the .scene file More meta-data t...

The Final Release of DIRSIG 4.4.1 is out. This release is primarily a maintenance release to address a few bugs in the 4.4.0 release. The following is a summary of fixes and features added in this release: First release to include a Windows 64-bit version Improvements to correlated deviate models used for jitter The frequency spectrum can now (optionally) include the phase New demonstrations Indoors1 ExtinctionProps1 Blender plug-ins for DIRSIG file formats Various LIDAR related improvements Speedups for atmospheric backscatter returns Bug fix for Linear-mode APD LIDAR detector model Various GUI bug fixes and improvements Improvements to streamline integration with SUMO and CityEngine SUMO vehicle track import utility included on all platforms Simplified shared library requirements for Solaris 9 and Solaris 10. Initial MuSES support built-in for the following platforms Windows 32-bit Windows 64-bit We wish to thank those early adopter users for the...

We have placed an update to the MegaScene1 distribution on myDIRSIG. The major aspect of this release is that it comes with a set of DIRSIG4 .scene files. This release also includes updates to material properties including the conversion of the tree leaf optical properties from extinction to transmission. We have found that changing this optical property provided speed ups because a large number of calls to the exponent function (to compute the transmission from the extinction) are eliminated. You can also download an update to MicroScene1. Like MegaScene1, we had neglected to push out an update of MicroScene1 with DIRSIG4 .scene files that were as simple to use as "unzip and use". Both updated scene files can be downloaded by registered users from the myDIRSIG website.

This release is primarily a maintenance release to address a few bugs in the 4.4.0 release. A "release candidate" is a preview of the next release of DIRSIG. This version of the software is produced when we feel the software is ready for release, but we would like some last-minute user feedback. Our early adopters always help spot a few lingering issues that our release quality control process misses. We expect the official version of 4.4.1 to be released around Jan 14th, 2011 The following is a summary of fixes and features added in this release: First release to include a Windows 64-bit version Improvements to correlated deviate models used for jitter The frequency spectrum can now (optionally) include the phase Various LIDAR related improvements Speedups for atmospheric backscatter returns Bug fix for Linear-mode APD LIDAR detector model Various GUI bug fixes and improvements Improvements to streamline integration with SUMO and CityEngine SUMO v...

Three weeks ago we announced a "release candidate" for DIRSIG 4.4.0. In the time since, we had quite a few early adopters try out 4.4.0 and provide us with feedback. Those improvements and bug fixes have now been incorporated into the official release of DIRSIG 4.4.0, which is now ready for download on myDIRSIG for registered users. Like we said at the time of the release candidate, we are very excited about this release as it packs in a bunch of new features and performance improvements: New User Interface Tools Graphical simulation preview Basic image viewer Component browser SGP 4 Orbiting Platform Motion Wizard Geometry Improvements Added affine transform INFO option to ODB Ray-trace optimization for dynamic (moving) scene geometry Support for vertex normals (normal "shading") on OBJ input geometry Atmosphere Added the GUI for the built-in "uniform" atmosphere model User-defined MODTRAN profile support (make_ adb config ...