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RELEASE_NOTES.md

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DeepMind Lab Release Notes

Current Release

(Nothing yet.)

release-2018-02-07 February 2018 release

New Levels:

  1. DMLab-30.

    1. contributed/dmlab30/rooms_collect_good_objects_{test,train}
    2. contributed/dmlab30/rooms_exploit_deferred_effects_{test,train}
    3. contributed/dmlab30/rooms_select_nonmatching_object
    4. contributed/dmlab30/rooms_watermaze
    5. contributed/dmlab30/rooms_keys_doors_puzzle
    6. contributed/dmlab30/language_select_described_object
    7. contributed/dmlab30/language_select_located_object
    8. contributed/dmlab30/language_execute_random_task
    9. contributed/dmlab30/language_answer_quantitative_question
    10. contributed/dmlab30/lasertag_one_opponent_small
    11. contributed/dmlab30/lasertag_three_opponents_small
    12. contributed/dmlab30/lasertag_one_opponent_large
    13. contributed/dmlab30/lasertag_three_opponents_large
    14. contributed/dmlab30/natlab_fixed_large_map
    15. contributed/dmlab30/natlab_varying_map_regrowth
    16. contributed/dmlab30/natlab_varying_map_randomized
    17. contributed/dmlab30/skymaze_irreversible_path_hard
    18. contributed/dmlab30/skymaze_irreversible_path_varied
    19. contributed/dmlab30/psychlab_sequential_comparison
    20. contributed/dmlab30/psychlab_visual_search
    21. contributed/dmlab30/explore_object_locations_small
    22. contributed/dmlab30/explore_object_locations_large
    23. contributed/dmlab30/explore_obstructed_goals_small
    24. contributed/dmlab30/explore_obstructed_goals_large
    25. contributed/dmlab30/explore_goal_locations_small
    26. contributed/dmlab30/explore_goal_locations_large
    27. contributed/dmlab30/explore_object_rewards_few
    28. contributed/dmlab30/explore_object_rewards_many

New Features:

  1. Basic support for demo recording and playback.

Minor Improvements:

  1. Add a mechanism to build DeepMind Lab as a PIP package.
  2. Extend basic testing to all levels under game_scripts/levels.
  3. Add settings minimalUI and reducedUI to avoid rendering parts of the HUD.
  4. Add teleported flag to game:playerInfo() to tell whether a player has teleported that frame.
  5. Add Lua functions countEntities and countVariations to the maze generation API to count the number of occurrences of a specific entity or variation, respectively

Bug Fixes:

  1. Fix out-of-bounds access in Lua 'image' library.
  2. Fix off-by-one error in renderergl1 grid mesh rendering.

release-2018-01-26 January 2018 release

New Levels:

  1. Psychlab, a platform for implementing classical experimental paradigms from cognitive psychology.

    1. contributed/psychlab/sequential_comparison
    2. contributed/psychlab/visual_search

New Features:

  1. Extend functionality of the built-in tensor Lua library.
  2. Add built-in image Lua library for loading and scaling PNGs.
  3. Add error handling to the env_c_api (version 1.1).
  4. Add ability to create events from Lua scripts.
  5. Add ability to retrieve game entity from Lua scripts.
  6. Add ability create pickup models during level load.
  7. Add ability to update textures from script after the level has loaded.
  8. Add Lua customisable themes. Note: This change renames helpers in maze_generation to be in lowerCamelCase (e.g. MazeGeneration -> mazeGeneration).
  9. The directory game_scripts has moved out of the assets directory, and level scripts now live separately from the library code in the levels subdirectory.

Minor Improvements:

  1. Remove unnecessary dependency of map assets on Lua scripts, preventing time-consuming rebuilding of maps when scripts are modified.
  2. Add ability to disable bobbing of reward and goal pickups.
  3. The setting controls (with values internal, external) has been renamed to nativeApp (with values true, false, respectively). When set to true, programs linked against game_lib_sdl will use the native SDL input devices.
  4. Change LuaSnippetEmitter methods to use table call conventions.
  5. Add config variable for monochromatic lightmaps ('r_monolightmaps'). Enabled by default.
  6. Add config variable to limit texture size ('r_textureMaxSize').
  7. api:modifyTexture must now return whether the texture was modified.
  8. Add ability to adjust rewards.
  9. Add ability to raycast between different points on the map.
  10. Add ability to test whether a view vector is within an angle range within a oriented view frame.

Bug Fixes:

  1. Increase current score storage from short to long.
  2. Fix ramp jump velocity in level lt_space_bounce_hard.
  3. Fix Lua function 'addScore' from module 'dmlab.system.game' to allow negative scores added to a player.
  4. Remove some undefined behaviour in the engine.
  5. Reduce inaccuracies related to angle conversion and normalization.
  6. Behavior of team spawn points now matches that of player spawn points. 'randomAngleRange' spawnVar must be set to 0 to match previous behavior.

release-2016-12-06 Initial release