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Shaders in Godot 4.3+ · jame581 | DecimalAI

codingby jame581

Shaders in Godot 4.3+

jame581/shader-basics

Source jame581/godotprompter ↗License MIT

Use when implementing shaders — Godot shader language, visual shaders, common visual recipes, and post-processing effects

SkillScore95Maintained

Automatic

Coding pack

Last verified 8/20/2026

What it changes

Passed 21 of 22 test cases with the skill, and 15 of 22 without it.

Without skill68%

With skill95%

Checks it passed that the model alone missed

Identifies the stencil buffer feature added in Godot 4.5.
Recommends SMAA for screen-space antialiasing in Godot 4.5.
Instructs setting Screen Space AA to SMAA under Project Settings.

and 7 more in the full report

6 fixed15 passed either way1 still failing0 broke

Pass-rate lift: +27 pp
Tokens: +149%
Agent turns: 0%
Response time: -37%

Model Measured 8/20/2026v1 · latest is v221 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

This benchmark measured an earlier version of the skill.

A newer attempt on gemini-3.8-flash on 10/20/2026 did not produce a publishable comparison (not comparable). The snapshot above is the previously measured run.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/jame581-shader-basics/SKILL.md https://app.decimal.ai/s/jame581-shader-basics/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add jame581-shader-basics, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/jame581-shader-basics/ and pins it in .decimal/skills.lock

decimalai skills add jame581-shader-basics

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/jame581-shader-basics/SKILL.md https://app.decimal.ai/s/jame581-shader-basics/SKILL.md

Raw file: /s/jame581-shader-basics/SKILL.md ↗ · machine-readable summary at /s/jame581-shader-basics.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 6 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 6

Prompt

In Godot 4.5, I want to reduce jagged edges on thin desktop rendering structures without introducing the blurriness of FXAA or the massive performance penalty of 8x MSAA. Which screen-space antialiasing option in Godot 4.5 offers high sharpness at low GPU cost?

What was checked, without and with the skill
Checked	Without skill	With skill
Recommends SMAA for screen-space antialiasing in Godot 4.5.	Missed	Passed
Notes that SMAA delivers sharper text and edges than FXAA at low GPU cost.	Missed	Passed

case-16 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md319 lines7 files

Shaders in Godot 4.3+

All examples target Godot 4.3+ with no deprecated APIs.

Related skills: animation-system for shader-driven effects like hit flash, godot-optimization for shader performance considerations, camera-system for post-processing camera effects, 2d-essentials for 2D lighting, pixel-art shaders, and CanvasTexture normal maps, 3d-essentials for spatial shaders and environment materials, particles-vfx for custom particle shaders, tween-animation for animating shader parameters at runtime.

1. Core Concepts

Shader Types

Shader Type	Applied To	Use For
`canvas_item`	2D nodes (Sprite2D, Control, etc.)	2D effects — outlines, dissolve, color swap
`spatial`	3D meshes (MeshInstance3D)	3D materials — water, terrain, toon shading
`particles`	GPUParticles2D/3D	Custom particle behavior
`sky`	WorldEnvironment	Procedural sky rendering
`fog`	FogVolume	Volumetric fog effects

Shader vs ShaderMaterial

Shader (.gdshader)        → The code (GLSL-like language)
ShaderMaterial            → Instance of a shader with specific uniform values
CanvasItemMaterial / StandardMaterial3D → Built-in materials (no code needed)

Multiple nodes can share the same Shader but have different ShaderMaterial instances with different uniform values (e.g., same dissolve shader but different dissolve progress per enemy).

Creating a Shader

Select a node (e.g., Sprite2D)
In Inspector → Material → New ShaderMaterial
On the ShaderMaterial → Shader → New Shader
Edit the .gdshader file in the built-in editor

Or create a .gdshader file directly in the FileSystem dock.

Track record

Benchmark

21 / 22

test cases passed, vs 15 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v6 — 10/17/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

jame581 / godotprompter

skills/shader-basics/SKILL.md

View on GitHub ↗

License MITImported 10/17/2026Version v2Bundled 6 files

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