# Isometric Building Sprites

> Use when generating isometric buildings (houses, barns, shops) that sit on a defined tile footprint and depth-sort correctly with characters.

- Skill: `0xheycat/isometric-building-sprites` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add 0xheycat/isometric-building-sprites`
- Raw SKILL.md: https://api.skillmd.com/api/skills/0xheycat/isometric-building-sprites/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: 0xheycat (https://skillmd.com/u/0xheycat)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/0xheycat/isometric-building-sprites

---


# Isometric Building Sprites

![Isometric Building Sprites demo](assets/demo.png)

## Overview

Buildings are large multi-tile sprites. They need a clear footprint (how many tiles they occupy), a consistent height-to-base ratio, and a known anchor so characters can walk in front of and behind them.

## When to Use

- You need houses, barns, shops, towers, or other structures.
- Buildings overlap tiles incorrectly or float.
- Characters draw in front of buildings they should be behind.

## Process

1. Lock art direction and the tile base size first.
2. Decide each building footprint in tiles (e.g. 2x2) BEFORE generating.
3. Prompt one building, isolated on a plain background, sitting on a visible diamond footprint with a soft contact shadow.
4. Keep settings + seed fixed so all buildings share one style and light.
5. Clean alpha with `transparent-cutout-cleanup`.
6. Set the anchor at the front-bottom tile of the footprint for depth sorting.
7. Place a character next to and behind the building to verify occlusion (see `depth-sorting-occlusion`).

## Rationalizations (Stop Lying to Yourself)

| Excuse | Reality |
|---|---|
| "Footprint does not matter, I will eyeball placement" | Eyeballed footprints break collision and sorting. Decide tiles first. |
| "Buildings can be a slightly different style" | The biggest objects on screen must match hardest. Fix style + seed. |

## Red Flags - STOP if you catch yourself:

- No defined tile footprint per building.
- Building height/scale varies wildly across the set.
- Characters render in front of tall buildings.

## Verification

You are NOT done until every box is checked:

- [ ] Each building has a documented tile footprint and anchor.
- [ ] All buildings share one style, light, and scale.
- [ ] Character occlusion in front of and behind each building is correct.