What is realitykit-rendering-materials?

A guide for building and troubleshooting how RealityKit scenes look on visionOS, including meshes, materials, cameras, lights, shadows, and visual effects. RealityKit is Apple's framework for creating interactive 3D scenes.

Use it to display models, assign materials, configure cameras and lights, tune shadows and effects, work with Gaussian splats or decals, and manage features such as level of detail or occlusion.

It helps identify whether a problem is caused by scene content, lighting, materials, rendering settings, or performance controls. It also points specialized shader and USD work to the appropriate guide.

realitykit-rendering-materials — Skill for Codex by tomkrikorian

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add tomkrikorian/visionOSAgents --skill realitykit-rendering-materials

Clone the repo

git clone --depth 1 https://github.com/tomkrikorian/visionOSAgents

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tomkrikorian/visionosagents/realitykit-rendering-materials/github.svg)](https://agentmods.dev/skills/tomkrikorian/visionosagents/realitykit-rendering-materials)

Your own site

<a href="https://agentmods.dev/skills/tomkrikorian/visionosagents/realitykit-rendering-materials"><img src="https://agentmods.dev/badge/skills/tomkrikorian/visionosagents/realitykit-rendering-materials/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/tomkrikorian/visionosagents/realitykit-rendering-materials"><img src="https://agentmods.dev/badge/skills/tomkrikorian/visionosagents/realitykit-rendering-materials.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,128 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00102	$0.01128
Opus 5	$0.00051	$0.00564
Sonnet 5	$0.00020	$0.00226
Haiku 4.5	$0.00010	$0.00113

Measured 9d ago against content hash 9309233faf4d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

realitykit-rendering-materials scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/realitykit-rendering-materials/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

RealityKit Rendering Materials

Quick Start

Confirm the issue is visual: mesh display, material assignment, camera projection, lighting, shadows, post-processing, splats, decals, LOD, occlusion, or probes.
Load the narrowest rendering reference that matches the feature.
Route ShaderGraph or USDA material graph editing to shadergraph-editor.
Route local USD stage rendering through realitykit-visionos-developer; route USD authoring to usd-editor.
Validate on device or simulator with concrete visual checks, because many rendering issues are asset-, lighting-, or hardware-dependent.

Load References When

Reference	When to Use
`references/modelcomponent.md`	Render meshes and assign RealityKit materials.
`references/modeldebugoptionscomponent.md`	Inspect or debug model rendering output.
`references/meshinstancescomponent.md`	Reuse mesh instances efficiently.
`references/modelsortgroupcomponent.md`	Control model sorting for transparent or layered content.
`references/opacitycomponent.md`	Control entity opacity.
`references/adaptiveresolutioncomponent.md`	Manage adaptive resolution.
`references/levelofdetailcomponent.md`	Select content by distance or detail tier.
`references/occlusioncullingcomponent.md`	Reduce render work for hidden content.
`references/gaussiansplatcomponent.md`	Render Gaussian splat captures.
`references/physicallybaseddecalcomponent.md`	Project physically based decals onto geometry.
`references/clippingcomponent.md`	Clip rendered geometry against bounds.
`references/tonemappingcomponent.md` and `references/bloomcomponent.md`	Tune tone mapping and bloom post-processing.
`references/pointlightcomponent.md`, `references/directionallightcomponent.md`, `references/spotlightcomponent.md`	Add or debug direct lights.
`references/imagebasedlightcomponent.md` and `references/imagebasedlightreceivercomponent.md`	Configure image-based lighting and receivers.
`references/groundingshadowcomponent.md`, `references/dynamiclightshadowcomponent.md`, `references/render-layers-and-shadows.md`	Tune grounding shadows, dynamic shadows, render layers, and per-light masks.
`references/environmentlightingconfigurationcomponent.md`, `references/virtualenvironmentprobecomponent.md`, `references/lightmaps-and-probes.md`	Configure environment lighting, virtual probes, baked lightmaps, and diffuse probes.
`references/perspectivecameracomponent.md`, `references/orthographiccameracomponent.md`, `references/projectivetransformcameracomponent.md`	Work with RealityKit cameras and projection.

Read the full file on GitHub · 70 lines

Files

What ships with it

28 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 70 lines · 102 tokens per session scan A 9309233faf4d

Subscribe to this mod's changes

realitykit-rendering-materials is a skill published in the GitHub repository tomkrikorian/visionOSAgents (60 stars, last pushed 2mo ago), licensed MIT. It adds 102 tokens to every session and 1,128 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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