Distant Horizons

Highlights:

• MC 1.20.3, 1.20.4, 1.20.6 support
  • No forge support for 1.20.6 due to Forge compiler issues
  • Added NeoForge support for 1.20.6
• Massive memory decrease, especially at high render distances
  • 1024 at medium can be loaded with 4 GB of memory
• Massive database file size decrease
  • Note: This will only affect new worlds, old databases will be migrated to the new format, but have to be manually vacuumed to shrink their file size.
• Frustum culling
• Fixed rendering hollow structures
• Up the api version number 1.0.0 -> 2.0.0
  • This means there were some breaking API changes
• World gen doesn't regenerate the same terrain twice
  • World gen also starts faster after loading into the world.
• API methods needed for Iris 1.7.0 support

Core DH Changes

Additions:

• MC 1.20.3 / 1.20.4 support - coolGi, James
• Frustum culling - NULL
• New rendering option so grass fades to dirt - IMS, James
• Simple material IDs to rendering data for use with Iris - James
• corrupt data read handling - James
• JarUtil/SelfUpdater error handling - James
• Buffer count to the F3 menu - James
• IP only server folder mode - James

Improvements:

• Improve downsampling / low detail rendering - James
  • IE hollow structures will no longer render incorrectly at lower detail levels
• Smaller database file sizes - James
  • Added LZMA as the new default compression option
    • LZMA provides roughly 3x the compression vs the previous compressor
  • Add lossy world compression, defaults to "visually equal"
• Massively reduce memory use and reduce GC pressure - James
• Speed up world gen queue initial loading - James
• Vertical LOD rendering improvements - Builderb0y
• RenderDataTransformer improvements - Cola
• Glass/transparent block improved color rendering - Cola, IMS

Changes:

• Overhaul data structure and file handling - James
  • Fixes holes with world gen - James
  • Overhaul the database format - James
  • Add automatic DB migration - James
    • Migration progress can be seen in the log and f3 menu
  • Removed DhRenderData - James
• Change overdraw to a number input - James
• Improve transparent rendering (IE Glass) - IMS, Cola
• rename "Horizontal Quality" -> "LOD Dropoff Distance" - James
• Refactored logos into assets/distanthorizons - coolGi
• Change the SQLite journal mode DELETE -> WAL - James
• Improve initalization logic - s809
• Improve StepFeatures logging - James
• Add data source pooling to reduce GC pressure - James
• Mark Iris 1.6.0 and older as incompatible - James
  • Iris already hid DH rendering anyway, so this just makes it clearer
• Make leaf colors match fancy graphics - Cola
• Move most async GL calls to the render thread - James
• Only log empty biomeWrapper strings once per session - James
• Remove unnecessary string concatenations in assertions - James
• Disable cave culling in the end - James
• Rename unused debug wireframe configs - James

Bug Fixes:

• Fix holes in the world when using world gen - James

• Fix world gen re-generating the same terrain - James

• Fix world gen for extreme render distances - James

• Fix ocean lighting grid issue - James

• Fix C2ME support - James

  • Changing C2ME's config should no longer be necessary to run it with DH.

• Fix SSAO and Fog not applying when Optifine shaders are enabled - James

• Fix BiomeWrapper warning about null level on startup - James

• Fix missing indium crashing with a messy error when java.awt is headless - James

  • The error message will now be much clearer and in most cases, should have a pop-up dialog explaining the problem.

• Fix Z-fighting at very high heights - James

• Fix red LODs rendering in random places

  • IE Added a config which is disabled by default to render overlapping quad errors - James

• Fix rendering holes (most of the time) - James

• Fix F3 menu not removing levels after leaving when multiverse support is active - James

• Fix LodRenderSections not stopping load futures when closed - James

• Fix a rare concurrent lighting engine issue with ChunkWrapper.getBlockLightPosList() - James

• Fix purple Chisels & Bits block rendering - Pierre Remacle

  • IE make Chisels & Bits blocks transparent

• Fix ThreadPool null pointer before world startup - James

• Fix world gen lockup if the file system fails - James

• Fix chunk break/place events not triggering fabric updates post MC 1.17 - James

• Fix Optifine not running in the dev environment - James

• Fix light engine out of bounds for MC 1.16 and 1.17 - James

• Fix File handler repos not closing - James

• Fix transparent ocean floors at low detail levels - James

• Fix warning about BiomeWrapper null level on startup - James

• Fix white grass/water if the biome is null - James

• Fix optifine 1.16 support - James

• Fixed mod auto-updating on quilt - coolGi

• Fix thread pool error logging after shutdown - James

• Fix corrupt data or moving data between MC versions causing monoliths - James

• Fix #49 shaders render incorrectly - IMS

  • This is specifically fixed for Iris 1.7.0+

• Fix #94 Rendering issues with Immersive Portals

• Fix #414 Added (nearly) unlimited vertical quality graphics option

• Fix #449 LodNodeBufferBuilder crash due to index out of bounds

• Fix #595 crash on save and exit - James

• Fix #597 Show Create logo in DH's update menu

• Fix #613 multiplayer failing due to folder not existing - James

• Fix #615 lag when rapidly breaking/placing blocks - James

• Fix #638 optifine not rendering on 1.16 + 1.17

• Fix #640 world gen holes not filling in

• Fix #641 seamless overdraw issues

• Fix #650 Fix Indium missing messages not displaying correctly in some cases - James

• Fix #663 Fix world gen holes - James

• Fix #670 Remove outdated world gen options from tooltip - James

• Fix #673 Chunks without a position are ignored - James

• Fix #680 Massive Memory Usage by ColumnRenderSource#renderDataContainer - James

Removals

• Remove Seamless Overdraw Test - James
  • The experiment was interesting, but ultimately failed. There were a number of issues rendering entities and it only ever worked on Fabric.
• Near and near/far fog options - James
  • Near fog was originally added back in DH 1.0 in case we couldn't remove vanilla fog, which has since proven to not be an issue.
• Remove Unlimited horizontal quality (LOD Dropoff Distance) setting - James
  • Unlimited quality is unnecessary and due to how the renderer is currently set up, unable to be run on any machine at higher render distances.
• Disable cave culling for any detail level above 0 - James
  • Cave culling is currently bugged and to prevent holes in the ocean that show the void this is the temporary solution.