The Best Nyan Update Yet!

Improved Software Performance

• Added Rum And Raisin's Software Transposed Buffer
• Adds alot of extra performance in Software
  • Examples at 2560x1440:
    • Hexen MAP01 (140 -> 240 fps)
    • Eye Juice MAP10 southeast corner (81 -> 109 fps)
    • Eviternity II MAP24 boat (68 -> 86 fps)
    • Doom 2 In City Only MAP23 start (23 -> 33 fps)
• Made some tweaks to improve performance for the Enhanced Light Amp
• Improved performance from a previous update that eliminated right-edge drift/jitter on long walls/midtextures

Added support for new ANIMINFO Lump

• ANIMINFO allows in-depth support for customising Nyan Doom's menu animations / widescreen assets
  • Allows for customisation for frame durations, and custom frame durations (similar to ANIMDEFS)
  • For more information see here.

Added Hexen/Heretic's STARTUP/LOADING Screens

• Both intro screens are now shown by default (when not playing/recording a demo)
• Option can be disabled next to the ENDOOM menu option
• Supports GAMEINFO ZDoom "hexen", "heretic", and "Doom" startups
• You can skip STARTUP/LOADING with a key/mouse/controller press

New Vanilla Software Emulation

• Added "Vanilla Texture Emulation" option that emulates tutti-fruttis and medusas (and draws textures by "power-of-two")
• Added "Sprite Limit Emulation" option that emulates the Vanilla 128 sprite limit (note this isn't always accurate, as widescreen adds to the sprites on screen)

Discord Integration

• Shows what wad / map you are playing on Discord
• If a wad has a GAMEINFO lump, it can pull the wad title from the lump.
• You can disable this via "General -> Misc -> Discord Rich Presense"

Weapon Carousel

• Added weapon carousel to NYANHUD for Doom, Heretic, and Hexen.
  • Special thanks to @JNechaevsky for Heretic + Hexen copyright free weapon icons
• If NYANHUD includes the carousel, you can turn this on/off via the "General -> Gamesim -> Weapon Carousel" option
• Added dehacked/hehacked support for "Carousel icon = EXAMPL" field

Zoom FOV Keybind

• Added "Zoom" keybind and Zoom FOV customisation (similar to Nugget Doom)
  • Disabled for demo recording
• Can be accessed in the "general" options

Hexen Smooth PolyObjects

• Added interpolation for Hexen PolyObjects and specific ceiling / floor movement actions.

PNG -> Doom Format Graphic Support

• PNGs in wads are now converted to Doom Format and the current palette
• A majority of the graphics in nyan-doom.wad are now PNGs
• Note: Indexed PNGs convert better than Truecolor

OpenGL Mouselook Now Supports Multiple Skies

• The sky dome when using mouselook in OpenGL can now render multiple skies at a time.

Automap Improvements / Fixes

• Improved / Interpolated automap mouse panning
• Rework Automap Line Drawing for OpenGL (thanks to @CoderPenguin1-dev and @Sempiternal-Futility for bug reports / additional testing)
• Fixed some automap / minimap scale behaviour when changing renderers or resolutions.
• Added software multisampling to automap lines thicker than 1x

Demo Compatibility Update

• Fixed "Extra Brightness" not being disabled on strict mode
• Fixed "Vanilla Transparency" not being disabled on strict mode
• Disable "Death Use - Nothing" when demo recording (decided by DSDA speedrunning server)

New Menu Options

• Added "Extra Menu Highlights" Option under "General -> Nyan" (default: on) (thanks Dinoaur for the suggestion)
  • Disables the extra highlights on the main menu
• Added "Quick Artifact use" Option under "General -> Gamesim" (default: off) (thanks Sgt-Flashback for the suggestion)
  • Allows instant use of artifacts in the inventory, instead of having to select and then use. (similar to Heretic + Hexen)
• Added "UI Fade Effects" Option (default: on)
  • Generating fade effects can increase startup time (they generate 10 transmaps)
  • Options to enable fade effects are "UI Fade Effects" and "Fade Messages"
• Replaced "Freelook Enhanced Flying" with "Classic Flight"
  • Moved to "General -> Gamesim" menu
  • Option is reversed now, with the default setting "off"
  • Forced to "on" for demo recording
• Added "Weapon Freelook Tilt" that tilts the weapon sprite based on the y-axis (default: on)
  • Inspired by Quake
• Changed "Linear Sky" option to "Sky Projection" with 3 options (default: vanilla)
  • Vanilla - normal sky rendering with distorting on edges of screen
  • Linear - sky rendering without distortion
  • Cylindrical - sky dome rendering in software (based on Nugget Doom)
• Added "Disable Saving After Death" option (default: on) (thanks @borriskiz for the suggestion)
• Added "Invuln Sky Behaviour" option to control mbf vs vanilla behaviour
  • Forced to "default" when demo recording
  • Thanks @CoderPenguin1-dev for the suggestion
• Added "Gray Invulnerability" option for accessibility
  • Note that this replace custom invuln colormaps from PWADs
  • Thanks @CoderPenguin1-dev for the suggestion
• Add "mouse panning" toggle in the automap menu options
• Add "Exhud / Map Stats Format" cycle toggles
• "Allow Multiple Map Pickups" is now disabled by default

More Stuff

• Fix OpenGL textures using old boom colormap while under invulnerability (thanks @CoderPenguin1-dev for the bug report)
• Fixed Blood color being overwritten by Nyan's "colored blood" option (thanks @CoderPenguin1-dev for the bug report)
• Fixed a rare random crash relating to weapon bobbing and interpolation.
• Fixed weird black lines that could show in software relating to really high / low midtextures.
• Fixed "Boom Weapon Auto Switch" to work with MBF21 weapons with custom refire states
• Fixed some Heretic D'Sparil killcount logic
• Fixed thing interpolation for dropped items on lifts (most obvious example)
• Added color cap for skies (based on Woof), when stretch skies is disabled ("Stretch Short Skies" default is now false)
• Downgraded Windows MSVC to add back support for Windows 7
• Run keybind is now set to "Shift" by default
• IDCHOPPERS is slightly better now ;)
• Added Obituaries documentation
• Other minor fixes and tweaks

DSDA Inclusions

• The following were added so that when the new DSDA-Doom update releases, save games stay compatible:
  • Add support for base spec UDMF namespaces (@elf-alchemist)
  • let IDDKT cheat only skip IoS spawned monsters (@fabiangreffrath)
  • Fix Episode 4 par times (@fabiangreffrath)
  • Allow screen wipe in heretic demos (@Pedro-Beirao)