Custom ViewCube with Unique OrbitControls and Matrix4 Camera Projection

Custom Camera and Controls in Three.js

Your custom camera implementation using a Matrix4 for projection is an interesting approach to solve the challenge of switching between orthographic and perspective modes with a single camera object. This is a creative solution that differs from the standard Three.js approach, which would typically involve switching between separate OrthographicCamera and PerspectiveCamera instances.

Three.js provides several camera types that you might have built upon:

• Camera: The base abstract class that other cameras extend
• PerspectiveCamera: Mimics human eye view with perspective distortion
• OrthographicCamera: Renders without perspective distortion (parallel projection)
• CubeCamera: Renders the scene from 6 directions (used for environment maps)
• ArrayCamera: Renders a scene from multiple cameras into specific viewports
• StereoCamera: Renders the scene through two cameras for stereoscopic effects

Your custom viewcube implementation with flip operation capabilities demonstrates how Three.js can be extended beyond its built-in controls to create specialized navigation tools for specific use cases.

The video thumbnail shows what appears to be a 3D navigation cube that helps orient users in 3D space - a common UI element in CAD and 3D modeling software that you've successfully implemented for your specific needs.

If you have specific questions about how to further refine your implementation or how it might interact with other Three.js components, I'd be happy to discuss those aspects in more detail.