Struct ovr_sys::ovrLayerEyeFov

#[repr(C)]
pub struct ovrLayerEyeFov {
    pub _align: [isize; 0],
    pub Header: ovrLayerHeader,
    pub ColorTexture: [ovrTextureSwapChain; 2],
    pub Viewport: [ovrRecti; 2],
    pub Fov: [ovrFovPort; 2],
    pub RenderPose: [ovrPosef; 2],
    pub SensorSampleTime: f64,
}

Describes a layer that specifies a monoscopic or stereoscopic view.

This is the kind of layer that’s typically used as layer 0 to ovr_SubmitFrame, as it is the kind of layer used to render a 3D stereoscopic view.

Three options exist with respect to mono/stereo texture usage:

• ColorTexture[0] and ColorTexture[1] contain the left and right stereo renderings, respectively. Viewport[0] and Viewport[1] refer to ColorTexture[0] and ColorTexture[1], respectively.
• ColorTexture[0] contains both the left and right renderings, ColorTexture[1] is NULL, and Viewport[0] and Viewport[1] refer to sub-rects with ColorTexture[0].
• ColorTexture[0] contains a single monoscopic rendering, and Viewport[0] and Viewport[1] both refer to that rendering.

see ovrTextureSwapChain, ovr_SubmitFrame

Fields

_align: [isize; 0]

Header: ovrLayerHeader

Header.Type must be ovrLayerType_EyeFov.

ColorTexture: [ovrTextureSwapChain; 2]

ovrTextureSwapChains for the left and right eye respectively.

The second one of which can be NULL for cases described above.

Viewport: [ovrRecti; 2]

Specifies the ColorTexture sub-rect UV coordinates.

Both Viewport[0] and Viewport[1] must be valid.

Fov: [ovrFovPort; 2]

The viewport field of view.

RenderPose: [ovrPosef; 2]

Specifies the position and orientation of each eye view, with the position specified in meters.

RenderPose will typically be the value returned from ovr_CalcEyePoses, but can be different in special cases if a different head pose is used for rendering.

SensorSampleTime: f64

Specifies the timestamp when the source ovrPosef (used in calculating RenderPose) was sampled from the SDK. Typically retrieved by calling ovr_GetTimeInSeconds around the instant the application calls ovr_GetTrackingState The main purpose for this is to accurately track app tracking latency.

Trait Implementations

impl Clone for ovrLayerEyeFov

fn clone(&self) -> ovrLayerEyeFov

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ovrLayerEyeFov

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for ovrLayerEyeFov