1# Ascent Changelog 2Notable changes to Ascent are documented in this file. This changelog started on 8/12/19 and does not document prior changes. 3 4The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), 5and this project aspires to adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). 6 7## Unreleased 8 9### Preferred dependency versions for ascent@0.8.0 (WIP) 10- conduit@0.8.0 11- dray@0.1.8 12- vtk-h@0.8.0 13- vtk-m@1.7.0 14 15 16### Added 17- Added OCCA Derived Field Generation support 18- Added more math expressions 19- Added a time expression 20- Added Cinema rendering support for Devil Ray 21- Added `streamline` and `particle_advection` transforms 22- Added history gradient expressions 23- Added the ability save named sessions 24- Added the ability save subsets of expression results to session files 25- Added the ability to add comments to PNG files that Ascent creates 26- Added timings out control option to Ascent (and Flow) 27- Added support to render Polygonal nd Polyhedral Meshes 28- Added option to turn of world annotations 29- Added FIDES Support 30 31### Fixed 32- Fixed a bug where ascent timings files were written out twice 33- Fixed a bug where the relay extract protocol was always hdf5, regardless of what was requested 34- Various fixes to paraview_ascent_source.py 35 36### Changed 37- Python CMake detection logic now prefers Python 3 38- Changed Ascent's C-API to use Conduit's C-API object helper methods 39- CMake, Spack, and uberenv changes to support newer versions of Cuda, CMake, etc 40- Updated to use VTK-m 1.7.0 41- Make Ascent Webserver support optional, linked to if Conduit Relay Web support exists 42- Simplified the relay extract protocol params, for example can now use `hdf5` instead of `blueprint/mesh/hdf5` 43 44 45## [0.7.1] - Released 2021-05-20 46 47### Preferred dependency versions for ascent@0.7.1 48- conduit@0.7.2 49- dray@0.1.6 50- vtk-h@0.7.1 51- vtk-m@1.5.5 52 53 54### Added 55- Added Data Binning examples to the Ascent Intro Tutorial 56 57### Fixed 58- Fixed an issue with the Data Binning bin calculation logic 59 60### Changed 61- Updated Ascent to use new conduit, dray, and vtk-h versions 62 63 64## [0.7.0] - Released 2021-03-19 65 66### Added 67- Added partial failure tolerance (i.e., if there are multiple plots the failure of one doesn't prevent the others from rendering) 68- Added the ability to use expressions as parameters to filters, e.g., `iso contour value = "(max(field('density')) - min(field('density)) / 2")` 69- Added orthogonal projections for scalar images (projecting onto a 2d plane) 70- Added a `triangulate` transform 71- Added option to build Ascent with only Devil Ray support 72 73### Fixed 74- Fixed a MPI hang if actions files (yaml or json) fail to parse 75- Fixed several minor issues with saving and reading Mesh Blueprint file sets 76- Fixed a field association bug with Data Binning 77- Fixed a 2D AMR mesh rendering issue 78 79### Changed 80- To better support installs that are relocated on the file system, Cinema database file resources are now compiled into the Ascent library. 81- Updated to use Babelflow (1.0.1) and Parallel Merge Tree (1.0.2). 82 83## [0.6.0] - Released 2020-11-06 84 85### Added 86- Added support for Devil Ray (high-order) ray tracer 87- Added vector operations 88 - composite vector (create vector from three scalars) 89 - vector component (extract scalar component) 90- Allow no refinement for high-order meshes 91- Added support for multiple topologies (e.g., volume and particles in the same mesh) 92- Added support for AMR Nesting relationships (Blueprint Nestsets) 93- Added optional `num_files` parameter to the Relay Extract. See the [Relay Extract Docs](https://ascent.readthedocs.io/en/latest/Actions/Extracts.html#relay) for more details. 94- Added an AscentViewer Widget for Jupyter 95- Added new CUDA device link logic to help bottle CUDA dependencies for downstream use 96- Added support for `exa` prefix style filters 97 98### Changed 99- Modified Cinema output so it can be viewed without a webserver 100- Removed default behavior of publishing individual vector components when vectors were three separate arrays. This can be achieved by using the vector component filter 101- Changed Docker Images to leverage Jupyter lab 102- Tutorial updates 103- Rendering improvements 104 105 106## [0.5.1] - Released 2020-01-31 107 108### Added 109- Added support to render multiple topologies in the same scene. 110- Added a Data Object construct to the main Ascent runtime to easily manage transformations between in-memory mesh representations. 111 112### Fixed 113- Issue where cycle was not properly propagated when converting mfem data. 114- Cinema issue where zoom was applied additively each cycle to oblivion. 115- Cinema issue where cameras were not following the center of the data set. 116 117## [0.5.0] - Released 2019-11-14 118 119### Added 120 121- Added new [Tutorial Content](https://ascent.readthedocs.io/en/latest/Tutorial.html) including C++, Python, and Python-based Jupyter Notebook examples. 122- Added docs for [Queries](https://ascent.readthedocs.io/en/latest/Actions/Queries.html) and [Triggers](https://ascent.readthedocs.io/en/latest/Actions/Triggers.html) 123- Added a Jupyter Extract that provides interactive Python Notebook access to published mesh data. See the related [Cloverleaf Demo](https://ascent.readthedocs.io/en/latest/Tutorial_CloverLeaf_Demos.html#using-the-jupyter-extract-for-interactive-python-analysis). 124- Deprecated the `execute` and `reset` actions. `ascent.execute(actions)` now implicitly resets and execute the Ascent actions. To maintain a degree of backwards compatibility, using `execute` and `reset` are still passable to `ascent.execute(actions)`. Internally, the internal data flow network will only be rebuilt when the current actions differ from the previously executed actions. Note: this only occurs when the Ascent runtime object is persistent between calls to `ascent.execute(actions)`. 125- Added support for YAML `ascent_actions` and `ascent_options` files. YAML files are much easier for humans to compose 126- Add a relative offset option to the Slice filter. 127 128### Changed 129 130- Several improvements to Ascent's Expression infrastructure. 131- Updated our uberenv-based to use a 2019/11 version of spack develop. 132- Improved Python error handling and propagation. 133- Updated Docker example to build with Jupyter Notebook support. 134- Updated to VTK-m 1.5.0 and associated VTK-h. 135- Imposed necessary static build constraints for cuda support. 136 137 138### Fixed 139- Several minor bug fixes 140 141[Unreleased]: https://github.com/Alpine-DAV/ascent/compare/v0.6.0...HEAD 142[0.6.0]: https://github.com/Alpine-DAV/ascent/compare/v0.5.1...v0.6.0 143[0.5.1]: https://github.com/Alpine-DAV/ascent/compare/v0.5.0...v0.5.1 144[0.5.0]: https://github.com/Alpine-DAV/ascent/compare/v0.4.0...v0.5.0 145[0.4.0]: https://github.com/Alpine-DAV/ascent/compare/v0.3.0...v0.4.0 146