- GeeXLab for Windows 64-bit
- GeeXLab for Linux 64-bit
- OpenGL 2.1 demopack
- All GeeXLab Downloads
- Feedback thread / Forum (EN)
1 – Release Notes
GeeXLab 0.29.3 is available for Windows and Linux 64-bit. This new version of GeeXLab brings the support of Assimp 5.0, adds some utility functions for threaded scripts (gh_utils.thread_lock_xxxxx()), fixes a crash in the Vulkan plugin (swapchain resizing…) and in the Python plugin (gh_utils.raycast_cast_ray_v2) and adds a new screenshot function (gh_utils.do_screenshot_v6()).
gh_utils.do_screenshot_v6 has the same parameters than gh_utils.do_screenshot_v5 but does the image saving operation in a separate thread. The image saving is an expensive operation and doing it in a separate thread allows to speed up the screen capture. I added a new demo in the OpenGL 2.1 demopack (d07-meshes-threaded-screenshots) that clearly shows the improvements:
- no screenshot, the demo runs at 1800 FPS.
- screenshot every frame with do_screenshot_v5, the demo runs at 30 FPS.
- screenshot every frame with do_screenshot_v6, the demo runs at 300 FPS.
If we look at the stats, there are roughly 10 frame buffer readings for one image writing on the disk.
A future improvement could be real multi-threaded image saving. Currently a single thread stores images on the disk. This operation can be extended to several threads. But not now, because I have many other things in the pipeline!
2 – Changelog
This changelog is intended for all versions of GeeXLab.
Full changelog from beginning of time is available HERE.
Version 0.29.3.0 - 2019.10.01 * (2019.10.01) [Windows, Linux] fixed a bug in the swapchain re-creation (after a window resizing) in the Vulkan plugin. * (2019.10.01) fixed a crash in gh_utils.raycast_cast_ray_v2() in Python. + (2019.09.30) gh_utils.clipboard_get_text() now works on Linux. + (2019.09.30) added thread_lock_create(), thread_lock_kill_all(), thread_lock_acquire() and thread_lock_release() to gh_utils. + (2019.09.29) added support of threaded screenshot: do_screenshot_v6(), screenshot_kill_image_saving_thread(), screenshot_threaded_get_stats() added to gh_utils. ! (2019.09.26) updated ASSIMP plugin with latest ASSIMP 5.0.0 SDK. + (2019.09.26) added a new command line option: /append_date_to_log_file . This option is also present in init0.xml (append_date_to_log_file="0|1"). Appending date to log filename looks like: _geexlab_log.20190926.175815.txt ! (2019.09.26) gh_utils.get_date_str() updated for Linux and macOS platforms.