C API Reference for Cardboard SDK

C API reference pages for the Cardboard SDK.

Modules
Cardboard SDK types	Various types used in the Cardboard SDK.
Initialization (Android only)	This module initializes the JavaVM and Android context.
Lens Distortion	This module calculates the projection and eyes distortion matrices, based on the device (Cardboard viewer) and screen parameters.
Distortion Renderer	This module renders the eyes textures into the display.
Head Tracker	This module calculates the predicted head's pose for a given timestamp.
QR Code Scanner	This module manages the entire process of capturing, decoding and getting the device parameters from a QR code.

Structs
CardboardEyeTextureDescription	Struct to hold information about an eye texture.
CardboardMesh	Struct representing a 3D mesh with 3D vertices and corresponding UV coordinates.
CardboardMetalDistortionRendererConfig	Struct to set Metal distortion renderer configuration.
CardboardMetalDistortionRendererTargetConfig	Struct to set Metal distortion renderer target configuration.
CardboardOpenGlEsDistortionRendererConfig	Struct to set OpenGL ES distortion renderer configuration.
CardboardUv	Struct to hold UV coordinates.
CardboardVulkanDistortionRendererConfig	Struct to set Vulkan distortion renderer configuration.
CardboardVulkanDistortionRendererTarget	Struct to set Vulkan distortion renderer target.