Visible Pregnancy Belly Textures 1.0.0

Description
A RimWorld mod that replaces pregnant pawn body textures with pregnant body variants that change across the three trimesters. When a female pawn becomes pregnant, their body sprite swaps to a version with a belly that grows from small (1st trimester) to medium (2nd) to large (3rd). At birth, the body returns to normal. 
 

• Pawn must not be wearing shirt/outerwear in order for the texture to be visible. It will poke through shirts (as a pregnant belly would).
• Supported body types: Female, Thin, Fat

Requirements

• RimWorld 1.6 — required
• Biotech DLC — required
• Harmony — required (used for the body graphic patch) (Steam Workshop)

Compatible with (NOT required):

• Pregnancy Pack (Steam Workshop)

Installation instructions

• Download and extract the mod folder to your RimWorld mods directory (typically C:\Program Files (x86)\Steam\steamapps\common\RimWorld\Mods\ or wherever your RimWorld is installed)
• Make sure you have Harmony installed (Click here for Harmony mod on Steam Workshop)
• Launch RimWorld, go to the Mods menu, and enable "Visible Pregnancy Belly Textures"
  
  Notes

• Load order: place it after Harmony and after Biotech. If using Pregnancy Pack, load order relative to it doesn't matter — our mod detects pregnancy types dynamically
• No new save required, the mod works on existing saves. Pregnant pawns will show belly textures immediately. Removing the mod mid-save is also safe since it only affects visuals.

Main features

• Visible pregnancy belly that grows across three trimesters
• Full body replacement approach — no overlay seams or visual artifacts
• Automatic skin color matching — belly tints to each pawn's skin tone
• Supports Female, Thin, and Fat body types
• Works with vanilla Biotech pregnancy, IVF/embryo implantation, and modded pregnancy types (including Pregnancy Pack mod)
• Body automatically reverts to normal after birth
• South and east-facing textures (west mirrors east automatically, north not needed since belly isn't visible from behind. South belly textures do not change size with trimesters, only east/west-facing.)

Supported pregnancy types:

• Vanilla Biotech pregnancy (PregnantHuman)
• Vanilla animal/generic pregnancy (Pregnant)  — used by some mods on humans
• Mystical Pregnancy from Pregnancy Pack Mod (MysticalPregnancy)
• Any other modded pregnancy hediff that sets pregnant=true

How It Works

• A Harmony patch intercepts the body graphic renderer (PawnRenderNode_Body.GraphicFor). When a pawn has any pregnancy hediff, it swaps the body texture to a pregnant variant based on severity. A second Harmony patch on Pawn_HealthTracker.RemoveHediff ensures the body reverts to normal after birth. An XML-injected HediffComp monitors trimester stage changes and triggers the graphics to update at each transition.

Shout Outs

• Akiya82 / Akiyami Solo — Created the original belly textures in the RJW Pregnancy Stages Graphics mod. Those overlay textures were the starting reference for this project, even though the final mod uses custom drawn full-body replacements.
• Ludeon Studios — For RimWorld, the Biotech DLC, and the 1.6 render tree system that makes this possible.
• Andreas Pardeike — Creator of the Harmony library that powers the body graphic patching.
• The AssetRipper project — Used to extract vanilla body sprites for creating the pregnant body textures.
• Averagewheatbred — Yours truly. Mod development, body texture painting, and creative direction. Built as a collaboration with Claude for assistance with code and XML.