AR Camera Fov Adjuster

AR Cam FOV Adjuster is a Unity plugin designed to give you full control over the AR camera’s field of view on both iOS (ARKit) and Android (ARCore). By modifying the camera’s projection matrix, you can smoothly zoom out the background image via a uniformScale parameter and fill any extra space with a user-defined BorderColor.

Features

• Zoom-Out Effect: Dynamically scale the camera texture to show more of the real-world feed.
• Customizable Border Color: Fill areas outside the [0,1] UV range with any color you choose.
• Platform-Specific Shaders: Separate HLSL (for iOS) and GLSL (for Android) shaders, each tailored to the ARKit or ARCore pipeline.
• Orientation Handling: Detects device orientation changes and reconfigures the camera projection for consistent AR content alignment.
• Easy Integration: Attach the ARCameraFOVAdjusterController to your AR camera and assign the included materials—done!
• URP Support: Works with the Universal Render Pipeline if you add the ARBackgroundRendererFeature to your Forward Renderer.

How It Works

• A slider or script modifies uniformScale, which adjusts the UV coordinates in the background shader.
• When uniformScale is below 1, the camera feed is zoomed out, and _BorderColor appears around the edges.
• The plugin also modifies the camera’s projection matrix (especially on iOS) to maintain proper AR alignment.