Minecraft Lohse Skin: Procedural Pixel Art

Project Overview

This project procedurally generates Minecraft Java Edition 64×64 skins using Python scripts (PIL library). Based on the companion character Lohse from Divinity: Original Sin 2, it recreates character features within Minecraft's pixelated aesthetic framework.

Technical Implementation

Skin generation is entirely defined through code specifying pixel colors and positions, without manual image editing:

Uses RGB color blending functions to simulate light/dark gradients and material transitions
Separate implementations for Steve (4px arm) and Alex (3px arm) models
Hat layer supports full transparency (normal version) and partial thickening (volumetric hair version)

Generation Flow

Define palette → Draw head/torso base layer → Draw arms (Steve/Alex) →
Draw legs → Overlay decoration layer (cape, magic effects) → Output PNG

Core Code

Palette Definition

# Lohse theme colors
PALETTE = {
    'hair': (199, 168, 119),      # Golden long hair
    'skin': (255, 213, 170),      # Skin tone
    'coat_primary': (45, 45, 75),   # Dark purple coat
    'coat_secondary': (80, 60, 100),# Light purple inner
    'accent': (180, 140, 200),     # Magic purple
    'cape': (60, 50, 90),          # Cape
}

Pixel Drawing

from PIL import Image
 
def draw_pixel(img, x, y, color, alpha=255):
    """Draw pixel at specified position"""
    if alpha < 255:
        # Semi-transparent blending
        base = img.getpixel((x, y))
        blended = blend_colors(base, color, alpha / 255)
        img.putpixel((x, y), blended)
    else:
        img.putpixel((x, y), color)
 
def draw_gradient(img, x, y, width, color_start, color_end):
    """Draw gradient bar"""
    for i in range(width):
        ratio = i / width
        color = interpolate_color(color_start, color_end, ratio)
        draw_pixel(img, x + i, y, color)

Steve vs Alex Arms

def draw_arm_alex(img, is_left):
    """Alex model: 3px wide arm"""
    offset = 0 if is_left else 5
    for x in range(3):
        for y in range(12):  # Arm height
            color = get_arm_color(x, y, is_left)
            draw_pixel(img, offset + x, y, color)
 
def draw_arm_steve(img, is_left):
    """Steve model: 4px wide arm"""
    offset = 0 if is_left else 4
    for x in range(4):
        for y in range(12):
            color = get_arm_color(x, y, is_left)
            draw_pixel(img, offset + x, y, color)

Output Files

Lohse.png — Alex model version
Lohse_steve.png — Steve model version
Lohse_alex_volumetric.png — Alex volumetric hair version
Lohse_steve_volumetric.png — Steve volumetric hair version

Usage

# Install dependencies
pip install Pillow
 
# Generate skin
python build_lohse_skin.py
 
# Output in output/ directory

Limitations

Current implementation is pure code pixel generation, no GUI editing interface or in-game preview. Skins need to be manually imported into Minecraft.