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Doom RPG RE — 3DS v1.0.4

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@iNdioNicarao iNdioNicarao released this 03 Sep 23:50
· 11 commits to main since this release
v1.0.4
2ded786

Doom RPG RE — 3DS v1.0.4

New 3DS home-menu build (.cia) and 3DSX package of Doom RPG RE, following v1.0.3. Source-only: no game assets or audio are bundled in the repository. They are supplied on the SD card (see Install).

  • Build: 2026-09-03
  • Version: 1.0.4
  • Title ID: 000400000FD0BB01
  • License: GPLv3
  • Developer Attribution: Dennis Isaac Gutierrez Zeledon

Overview

Version 1.0.4 is a major audiovisual, stereoscopic, and UI polish release for Nintendo 3DS. It introduces a custom 3D parallax diorama HOME Menu banner with a 2-channel stereo audio stinger, Dynamic Motion-Damped Stereoscopy to eliminate visual disorientation during movement and turns, a pixel-perfect 1:1 square aspect ratio and proportional kerning for bottom-screen dialogue, and automatic word-wrapping that prevents text from bleeding out of boxes or behind scrollbars.

Highlights (v1.0.4)

  • 3D Parallax Diorama HOME Menu Banner & Audio Stinger:
    • Fully custom 3DS extended banner featuring a 2-sided rotating plaque: the front displays the high-detail Mars Base Research Facility diorama, while the back features an authentic dark brushed steel plate with corner rivets, metallic bevel, and an embossed horned demon skull in the center.
    • Floating Doom RPG foreground logo with depth blending.
    • Sized and framed to remain completely within the screen boundaries across all angles of rotation.
    • Pixel-matched HOME Menu icon.
    • Embedded 22,050 Hz 2-channel stereo CWAV audio stinger playing two shotgun blasts followed by the classic Doom grunt death scream upon application selection.
  • Dynamic Motion-Damped Stereoscopy:
    • Eliminates visual fatigue and retinal shear in autostereoscopic 3D mode.
    • During Camera Rotation (Turning): Dials down 3D eye separation by 70% (0.30 strength) to eliminate lateral parallax shearing.
    • During Grid Movement (Stepping): Dials down eye separation by 55% (0.45 strength) to soften the step depth pop while preserving forward depth cues.
    • Asymmetric Easing: Rapidly softens depth in 2–3 frames when motion begins, and smoothly blooms back to 100% full slider depth over ~150ms once the player settles onto a tile or finishes a turn.
    • Stationary: 100% full, rich 3D autostereoscopy when standing still, exploring the view, in combat, or navigating menus.
  • Pixel-Perfect 1:1 Physical Aspect Ratio for Dialogue:
    • Compensates for the 3DS bottom screen display driver's $4/5$ horizontal downscale ($400 \to 320$) using a $5/2$ virtual $X$ mapping: $\frac{5}{2} \times \frac{4}{5} = \mathbf{2.0\text{ physical pixels wide}}$, exactly matching the $2\times$ vertical scaling ($\mathbf{2.0\text{ physical pixels tall}}$).
    • Eliminates the tall, skinny font distortion; dialogue glyphs now render with mathematically square ($2\times 2$ pixel) aspect ratio on the physical LCD.
  • Proportional Kerning & Typography:
    • Built a per-glyph bounding box metrics table (s_dialogFontMetrics) for all 96 characters in the font bitmap.
    • Eliminates excessive empty padding around narrow glyphs (:, !, l, 1, ., ,); strings like Level: 3, Max Health: +3, and Max Armor: +4 are snug and naturally spaced.
  • Automatic Word-Wrapping & Text Overflow Protection:
    • Dialogue text now measures line widths against the physical container and automatically breaks at word boundaries before reaching the scrollbar threshold (max 117 font pixels).
    • Guarantees text will never bleed out of the dialogue box or render behind the vertical scrollbar.
    • Sized the dialogue box to $330\text{px}$ virtual width ($264\text{px}$ physical width, perfectly centered with $28\text{px}$ automap margins on each side of the bottom screen) for comfortable breathing room.
    • Fixed Level Up notification header by removing menu divider padding so the title starts neatly at the left margin.
  • UI & Menu Alignment Fixes:
    • Centered startup and pause menus with consistent left-justified text layout.
    • Refined Nintendo 3DS Play Coins store exchange (5 Play Coins for 20 Credits) and corrected shared extdata archive ID permissions.

Detailed Commit Log (v1.0.4)

All 15 commits included in this release since v1.0.3:

  1. e7d6120 — fix(dialog): fix bottom screen font kerning, 1:1 square pixel aspect ratio, word-wrapping, and level up header
  2. 1e9c33e — feat(3d): implement dynamic motion-damped stereoscopy during player movement and rotation
  3. 2e46414 — fix(banner): shrink background by another 15% and scale down demon skull by 25%
  4. ba6a294 — feat(banner): add brushed steel back with centered horned demon skull on 40% shrunk background
  5. 4909b21 — fix(banner): shrink background by 40% from 8eb1a45 baseline
  6. 8eb1a45 — fix(banner): compile 2-channel stereo CWAV for 3DS HOME Menu audio
  7. dd9e372 — feat(banner): add two shotgun blasts and grunt death scream, match home icon
  8. f760f12 — fix(ui): center startup and pause menus, add level separator, and fix coins overlap
  9. 53e2cbf — build: bump version to DOOMRPG-3DS v1.0.4
  10. bd1c30e — chore(clean): remove external project references and ignore plan/scratch files
  11. 7156498 — fix(menu): widen container to 280px, left-justify text, and update play coins exchange to 5 for 20
  12. d992004 — feat(banner): implement 3D parallax diorama banner, custom audio stinger, and 3DS icon
  13. 1f93615 — fix(store): execute Play Coins credit exchange and preserve bottom screen HUD during menus
  14. a532027 — fix(3ds): correct shared extdata archive ID and add RSF SystemSaveDataId1 for Play Coins
  15. 499a61a — docs: update AI assistant acknowledgments for v1.0.3+ (Gemini Antigravity)

Install

  1. Install DoomRPG-1.0.4.cia with FBI (or run DoomRPG.3dsx from the Homebrew Menu).
  2. On the SD card, copy the extracted data files into sdmc:/3ds/doomrpg/ so they sit loose in that folder. Required files include the *.bmp sprites/UI, the *.bsp maps, wtexels.bin, stexels.bin, bitshapes.bin, palettes.bin, mappings.bin, and sintable.bin.
  3. Add audio next to the data, also under sdmc:/3ds/doomrpg/:
    • SFX as numbered .wav files (5042.wav through 5138.wav).
    • Music as numbered .mp3 files (5039.mp3, 5040.mp3, 5043.mp3).
  4. Launch from the HOME Menu. sdmc:/3ds/doomrpg/saves/ is created at runtime.

The game will not start unless sdmc:/3ds/doomrpg/ exists with the data files present.

Controls

Action Physical Button Touch Screen
Move Forward / Backward D-pad Up / Down or Circle Pad —
Strafe Left / Right L / R —
Turn Left / Right D-pad Left / Right or Circle Pad —
Attack / Talk / Use / Confirm A On-screen dialog tap
Back / Dismiss Dialog / Pass Turn B Tap [ PASS ] on top bar
Next / Prev Weapon ZR / ZL —
Quick Use Items Hotbar touch Tap S.MED, L.MED, SOUL, BRSK, DOG
Passcode Entry D-pad / A Tap numpad digits 0–9, C, OK
In-Game Menu / Back Start Tap [ MENU ] on top bar
Automap Select (persistent on bottom screen) —
3D Depth Adjustment Physical 3D Slider —

Release Assets

  • DoomRPG-1.0.4.cia — MD5 4280c884f4000a119f297e0057c836ce
  • DoomRPG.3dsx — MD5 1990844a69888467904506a3c66d9765

Acknowledgments

This fork was developed by Dennis Isaac Gutierrez Zeledon with the assistance of AI coding assistants across its development milestones:

  • v1.0.3 – v1.0.4 (Stereo 3D, Motion Damping, 3D Banner & Touch UI):

    • Assistant: Gemini Antigravity (Google DeepMind)
    • Role: Implementation of hardware autostereoscopic 3D, Citro2D/Citro3D stereo targets, dynamic motion-damped stereoscopy, 3D parallax diorama banner and stereo CWAV stinger, pixel-perfect 1:1 dialogue typography and word-wrapping, Touch HUD hotbar, passcode keypad, Play Coins exchange, and in-memory libmad MP3 audio streaming.

  • v1.0.0 – v1.0.2 (Initial Port & CIA Packaging):

    • Assistant: Hermes Agent (Nous Research)
    • Model: tencent/hy3:free
    • Role: Tracing the initial 3DS boot/render path, resolving early heap-exhaustion and null-surface crashes, establishing the New 3DS home-menu .cia build pipeline, and initial repository setup.

License

GNU General Public License v3.0. Doom RPG game data is the property of its respective owners and is not included in this repository.

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