Prism ◈

An exhaustive Unreal Engine 5.7 knowledge base. Plugins, blueprints, render targets, PCG, geometry cache, volumes, AI tooling, and AAA-grade rendering pipelines — without making you read the official docs three times.

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Start here

If you want to…	Go to
Understand the rendering stack (Nanite, Lumen, VT, RT)	Rendering
Use render targets for mirrors, portals, GPU paint	Render Targets
Drive content with PCG	PCG
Use the right volume actor for the job	Volumes
Bake an Alembic sim into the engine	Geometry Cache
Find the best plugin for X	Plugins catalog
Drive UE from Claude / Cursor / any MCP client	AI Integration
Run three.js inside UE or UE inside three.js	Workflows

Why this exists

Unreal's official documentation is excellent but spread across dozens of pages, three eras of UE versions, and a labyrinth of feature deprecations. Prism is a single linear knowledge base focused on UE 5.7 that answers concrete questions:

• "Which volume actor does X?"
• "What's the right plugin for embedding web content on a 3D surface?"
• "How do I use sampler feedback streaming without Unreal's VT system?"
• "What's the cleanest pipeline from Houdini → UE for cached animation?"
• "How do I drive UE from a JSON-RPC client over a local socket?"

Every page links out to authoritative UE source where applicable.

Reading paths

You're new to UE 5.7:

1. Volumes overview → know the actor catalog
2. Blueprints overview → the class hierarchy
3. Plugins catalog → what's available
4. Rendering overview → modern renderer concepts

You're an engine programmer:

1. Nanite + Virtual Textures
2. NVIDIA RTX Stack
3. Iris replication

You're an AI / tooling engineer:

1. AI Integration overview
2. UnrealClaudeMCP
3. Unreal AI Connection
4. Streaming pipelines

Versions

Pages target UE 5.7 unless otherwise noted. Older API behavior is called out inline.

Contributing

PRs welcome — see CONTRIBUTING.