Needle vs. <model-viewer> vs. Godot

See how Needle, <model-viewer>, and Godot compare across key features and capabilities for usage on the web and creating XR experiences for designers, developers and teams.

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Web-first runtime integrated with Unity and Blender plugins, complemented by Needle Cloud for optimization and hosting.
Needle
A Google-developed web component for easily embedding interactive 3D models (glTF/GLB) and AR experiences into HTML pages.
<model-viewer>
A feature of the free and open-source Godot Engine, allowing projects to be compiled to WebGL and Wasm for browser deployment, though with some limitations.
Godot
Core Platform & Workflow
Solution Type
3D Engine
Cloud Platform
Authoring Tool
Optimization Tool
Web Component
Needle
Solution Type: 3d-engine, cloud-platform, authoring-tool, optimization-tool, web-component
A comprehensive suite including a runtime engine, cloud services for optimization/hosting, authoring via Unity/Blender plugins, and embeddable web component output.
Web Component
<model-viewer>
Solution Type: web-component
A custom HTML element (<model-viewer>) designed for simple 3D model display and AR.
3D Engine
Authoring Tool
Godot
Solution Type: 3d-engine, authoring-tool
Allows exporting projects made in the Godot Editor to run in browsers using WebGL/Wasm.
Made for the web
Needle
Made for the web: Yes
Built from the ground up for the web, focusing on fast loading, efficient rendering, and cross-platform web deployment.
<model-viewer>
Made for the web: Yes
Focuses on ease of use, optimized loading (lazy loading, poster), and performance for web display.
Godot
Made for the web: No
Web is an export target, not the primary design focus. Performance and features may lag behind native builds.
Typical Workflows
Unity Editor
Blender Editor
Code
HTML
Asset Upload
Needle
Typical Workflows: Unity Editor, Blender Editor, Code, HTML, Asset Upload
Primary workflow involves using Unity or Blender as the authoring environment, exporting scenes and logic. Custom scripts (TypeScript/JavaScript) extend functionality.
HTML
<model-viewer>
Typical Workflows: HTML
Used by adding the `<model-viewer>` tag to an HTML page and configuring via attributes.
Standalone Editor
Code
Godot
Typical Workflows: Standalone Editor, Code
Development uses the integrated Godot Editor, with scripting primarily in GDScript or C#.
Use with Unity
Needle
Use with Unity: Yes
Deep integration with Unity Editor via dedicated plugin, allowing export of scenes, C# scripts (transpiled), materials (Shader Graph), animations, and components.
<model-viewer>
Use with Unity: No
Consumes glTF files, which can be exported from Unity.
Godot
Use with Unity: No
Separate engine and workflow.
Use with Blender
Needle
Use with Blender: Yes
Integration with Blender via addon, supporting export of scenes, materials, animations, and custom logic nodes.
<model-viewer>
Use with Blender: No
Consumes glTF files, which can be exported from Blender.
Godot
Use with Blender: Yes
Godot has strong glTF import capabilities, making Blender a good companion tool.
Interactivity Building Blocks
Needle
Interactivity Building Blocks: Yes
Includes a rich set of components for common interactions, animations, and UI elements.
<model-viewer>
Interactivity Building Blocks: No
Provides built-in features for model display, camera controls, and AR placement, but not for broader interactivity.
Godot
Interactivity Building Blocks: No
Limited built-in components, though components are available in the Godot Asset Library.
Extensible with Coding
Needle
Extensible with Coding: Yes
Uses TypeScript with full IDE support in both Unity and standalone projects.
<model-viewer>
Extensible with Coding: No
Allows for JavaScript event handling and basic property manipulation via API, but not for extending core functionality.
Godot
Extensible with Coding: Yes
GDScript, C#, or visual scripting, with some limitations in web export.
Engine Capabilities
Physically-Based Rendering
Needle
Physically-Based Rendering: Yes
Supports Physically Based Rendering (PBR), custom shaders (via Unity Shader Graph export), lighting, and post-processing effects.
Limited
<model-viewer>
Physically-Based Rendering: Limited
Supports PBR materials, environment maps, and basic lighting/shadow options, but no control over per-object shadows, reflection probes, lightmaps or other advanced rendering features.
Good
Godot
Physically-Based Rendering: Good
Supports PBR materials, global illumination (SDFGI, VoxelGI - limitations on web), and various post-processing effects, although web export uses the less feature-rich Compatibility renderer.
Component System
Needle
Component System: Yes
Leverages the component-based architecture of Unity/Blender, extended with custom web-specific components.
<model-viewer>
Component System: No
Internal structure, not exposed as an ECS.
Godot
Component System: Yes
Uses a node-based scene structure, which functions similarly to an ECS.
Built-in Networking
Needle
Built-in Networking: Yes
Built-in real-time networking for multiplayer and collaborative applications.
<model-viewer>
Built-in Networking: No
Not designed for networked experiences.
Godot
Built-in Networking: Yes
Includes high-level networking APIs, but web exports have constraints (e.g., no UDP, rely on WebSockets/WebRTC).
Timelines and Sequencing
Needle
Timelines and Sequencing: Yes
Supports timeline-based sequencing, complex animations, animator state machines, blending, and more.
<model-viewer>
Timelines and Sequencing: No
Can play animations embedded in glTF but has no built-in sequencing system.
Godot
Timelines and Sequencing: No
Animation state machines are supported via AnimationTree and AnimationPlayer, however there is no dedicated timeline/sequencing tool.
Animation Controls
Needle
Animation Controls: Yes
Supports complex animations authored in Unity (Animator, Timeline) or Blender and exports them for the web.
<model-viewer>
Animation Controls: Yes
Can play animations embedded within the loaded glTF model.
Godot
Animation Controls: Yes
Supports Godot's AnimationPlayer, AnimationTree, and related nodes.
Animated Materials
Needle
Animated Materials: Yes
Supports material animations, shader graph, and procedural material effects.
<model-viewer>
Animated Materials: No
Supports materials in the glTF, including basic animation defined in the model, but no dynamic material creation or animation.
Godot
Animated Materials: Yes
AnimationPlayer can animate material properties as well.
Audio Playback
Needle
Audio Playback: Yes
Supports spatial audio configured via Unity/Blender components.
<model-viewer>
Audio Playback: No
Does not have built-in audio features.
Godot
Audio Playback: Yes
Includes Godot's audio engine capabilities.
Video Playback
Needle
Video Playback: Yes
Supports video textures and playback controlled via components.
<model-viewer>
Video Playback: No
Does not directly support video textures.
Godot
Video Playback: Yes
Supports video playback using the VideoStreamPlayer node.
Physics Integration
Needle
Physics Integration: Yes
Integrates with physics engines, configured via Unity/Blender components.
<model-viewer>
Physics Integration: No
Focuses on model display, does not include physics.
Godot
Physics Integration: Yes
Includes Godot's built-in 2D and 3D physics engines.
glTF 3D Support
Excellent
Needle
glTF 3D Support: Excellent
Uses glTF as its core runtime format and supports import of various formats (FBX, USD, VRM etc.) which are converted.
<model-viewer>
glTF 3D Support: Yes
Designed specifically for loading and displaying glTF 2.0 models.
Excellent
Godot
glTF 3D Support: Excellent
Godot prioritizes glTF as its primary 3D interchange format.
Custom User Interfaces
Needle
Custom User Interfaces: Yes
Facilitates creation of UI using standard HTML/CSS and frontend frameworks, integrated with the 3D scene.
<model-viewer>
Custom User Interfaces: No
Provides basic interaction controls (orbit, pan, zoom) and hotspots. Customization primarily via HTML/CSS/JS API.
Godot
Custom User Interfaces: Yes
Features a comprehensive set of Control nodes for building complex UIs.
Web Integration & Deployment
Web Component
Needle
Web Component: Yes
Exports projects as standard web components (<needle-engine> tag) for easy embedding into any HTML page or web application.
<model-viewer>
Web Component: Yes
It is fundamentally a web component.
Godot
Web Component: No
Web exports are typically embedded via iframe or JavaScript loader.
PWA Support
Needle
PWA Support: Yes
Being web-native, Needle Engine projects can be easily included in Progressive Web Apps for offline capabilities and installation.
<model-viewer>
PWA Support: No
Can be included in Progressive Web Apps but provides no specific PWA features itself.
Godot
PWA Support: Yes
Web exports can be configured as Progressive Web Apps.
HTML/CSS Integration
Excellent
Needle
HTML/CSS Integration: Excellent
Designed to seamlessly integrate with HTML, CSS, and frontend frameworks (React, Vue, Svelte etc.), allowing blending of 2D UI and 3D content.
Excellent
<model-viewer>
HTML/CSS Integration: Excellent
Designed specifically for seamless integration into standard HTML pages.
Difficult
Godot
HTML/CSS Integration: Difficult
Interaction between the Godot Wasm instance and the webpage requires JavaScript bridging.
Host Anywhere
Needle
Host Anywhere: Yes
The core runtime can be self-hosted on any static server. Needle Cloud features (optimization, hosting, analytics) require the cloud service.
<model-viewer>
Host Anywhere: Yes
Requires only static hosting for the component and model files.
Limited
Godot
Host Anywhere: Limited
Requires hosting for the exported files (Wasm, pck, JS). Servers need specific configuration (Cross-Origin Isolation headers for threading).
Asset Hosting
Needle
Asset Hosting: Yes
Needle Cloud provides managed hosting and CDN delivery for optimized assets.
<model-viewer>
Asset Hosting: No
Requires external hosting for the glTF/GLB model files.
Godot
Asset Hosting: No
Requires external hosting for exported build files.
App Hosting
Needle
App Hosting: Yes
Needle Cloud provides managed hosting and CDN delivery for optimized applications.
<model-viewer>
App Hosting: No
Requires external hosting for the HTML page and model files.
Godot
App Hosting: No
Requires external hosting for exported build files.
Performance & Optimization
Engine Size
Medium
Needle
Engine Size: Medium
Optimized runtime aims for minimal footprint, size depends on included features.
Small
<model-viewer>
Engine Size: Small
Relatively lightweight as it bundles a subset of three.js.
Medium/Large
Godot
Engine Size: Medium/Large
Wasm builds can be substantial, though generally smaller than Unity.
Loading Performance
Excellent
Needle
Loading Performance: Excellent
Rapid development cycles and fast loading times through optimized runtime and asset handling.
Fast
<model-viewer>
Loading Performance: Fast
Implements strategies like lazy loading and posters for optimized loading experience.
Moderate/Slow
Godot
Loading Performance: Moderate/Slow
Loading times depend on project size and optimization efforts.
Runtime Performance
Excellent
Needle
Runtime Performance: Excellent
Designed for efficient rendering performance across desktop, mobile, and XR devices.
Good
<model-viewer>
Runtime Performance: Good
Offers good performance for its primary use case of displaying and interacting with single models.
Moderate/Variable
Godot
Runtime Performance: Moderate/Variable
Web export performance can be lower than native builds due to browser constraints and translation overhead.
Smart Asset Optimization
Excellent
Needle
Smart Asset Optimization: Excellent
Needle Cloud provides significant automated optimization: LOD generation, mesh optimization, extensive texture compression (Basis Universal, WebP, JPG, PNG) and resizing options.
<model-viewer>
Smart Asset Optimization: Yes
Handles progressive loading and encourages use of optimized formats like Draco and Basis Universal textures.
Godot
Smart Asset Optimization: Yes
Offers export options for texture compression (VRAM compression) and other settings.
Mesh and Texture LODs
Excellent
Needle
Mesh and Texture LODs: Excellent
Supports automatic mesh simplification, level-of-detail generation and automatic texture compression with multiple quality levels.
<model-viewer>
Mesh and Texture LODs: No
Relies on optimization being done in the source glTF file; no dynamic LOD system.
Godot
Mesh and Texture LODs: No
No automatic generation of simplification levels, no web-specific optimizations.
XR Support (AR/VR/Spatial)
VR Support (WebXR)
Needle
VR Support (WebXR): Yes
Supports VR headsets via the WebXR standard.
Limited
<model-viewer>
VR Support (WebXR): Limited
Supports viewing models in VR via WebXR, without interactivity.
Godot
VR Support (WebXR): Yes
WebXR support is available but requires custom code.
AR Support (WebXR)
Needle
AR Support (WebXR): Yes
Supports markerless WebAR on compatible Android devices via the WebXR standard.
Limited
<model-viewer>
AR Support (WebXR): Limited
Provides an AR button for viewing models in AR on compatible Android devices (via WebXR), without interactivity.
Godot
AR Support (WebXR): Yes
AR capabilities via WebXR are available.
AR Support (iOS)
Needle
AR Support (iOS): Yes
Supports interactive markerless WebAR on iOS devices via WebXR.
Limited
<model-viewer>
AR Support (iOS): Limited
Provides an AR button for viewing static models in AR on iOS using Apple's AR Quick Look.
Godot
AR Support (iOS): No
Quick Look is not supported.
AR Support (visionOS)
Needle
AR Support (visionOS): Yes
Explicit support for creating spatial computing experiences deployable on visionOS.
Limited
<model-viewer>
AR Support (visionOS): Limited
Provides an AR button for viewing static models in AR on iOS using Apple's AR Quick Look.
Godot
AR Support (visionOS): No
Not directly supported via web export.
AR Tracking Types
Surface
Image
Needle
AR Tracking Types: Surface, Image
Supports World Tracking via the WebXR standard on compatible devices. Image tracking is supported on iOS AR but requires a device-specific flag for Android AR.
Surface
<model-viewer>
AR Tracking Types: Surface
Supports World Tracking via WebXR (Android) and surface placement via AR Quick Look (iOS).
Limited (WebXR)
Godot
AR Tracking Types: Limited (WebXR)
Tracking capabilities depend on the WebXR implementation in the browser.
Ecosystem & Support
Official Support Availability
Needle
Official Support Availability: Yes
Dedicated support available for licensed users.
<model-viewer>
Official Support Availability: No
Support primarily through GitHub issues and community channels.
Godot
Official Support Availability: No
Support is primarily community-based. Commercial support providers exist.
Learning Resources
Needle
Learning Resources: Yes
Extensive documentation, tutorials, live samples, and active community support.
Good
<model-viewer>
Learning Resources: Good
Excellent documentation site serves as the primary learning resource.
Godot
Learning Resources: Yes
Good official documentation, tutorials, and a growing number of community resources.
License
Commercial
Needle
License: Commercial
Commercial license required for full features and deployment. Free evaluation available.
Open Source
<model-viewer>
License: Open Source
Available under the Apache License 2.0.
Open Source
Godot
License: Open Source
Free and open source under the MIT license.

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