Axiom Graphics

This is your router for anything touching the GPU on Apple platforms. It splits into three main paths: Metal migration (porting from OpenGL/DirectX with shader conversion tables and diagnostic workflows), display performance (fixing the stuck-at-60fps-on-ProMotion problem that catches everyone), and RealityKit for non-game 3D content in SwiftUI. The migration section is particularly thorough, with separate skills for strategy decisions, API reference tables, and diagnostics that can apparently cut black screen debugging from 30 minutes to 5. If you're converting GLSL shaders, setting up MTKView, or trying to get 120Hz working, this routes you to the specific guidance instead of general Metal docs.

skills.sh installs: 1.3K
GitHub stars: 1.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add charleswiltgen/axiom --skill axiom-graphics --agent claude-code

Installs into .claude/skills of the current project.

Files

Graphics

You MUST use this skill for ANY GPU rendering, graphics programming, 3D content display, or display performance work.

When to Use

Use this router when:

Porting OpenGL/OpenGL ES code to Metal
Porting DirectX code to Metal
Converting GLSL/HLSL shaders to Metal Shading Language
Setting up MTKView or CAMetalLayer
Rendering breaks or blurs when the window resizes or moves between screens
Debugging GPU rendering issues (black screen, wrong colors, crashes)
Evaluating translation layers (MetalANGLE, MoltenVK)
Optimizing GPU performance or fixing thermal throttling
App stuck at 60fps on ProMotion device
Configuring CADisplayLink or render loops
Variable refresh rate display issues
Displaying 3D content in a non-game SwiftUI app
Building AR experiences with RealityKit
Using RealityView or Model3D in SwiftUI
Spatial computing or visionOS 3D content
Reading, editing, or exporting USD/USDZ files in Swift (USDKit)
Adding ML to a render pipeline (MetalFX denoising, Metal tensors, neural rendering)
Profiling long game sessions (metalperftrace, look-back traces)