private static extern void ovrHmd_GetEyeTimewarpMatrices(IntPtr hmd, ovrEyeType eye, ovrPosef renderPose,
[MarshalAs(UnmanagedType.LPArray, SizeConst = 2)]
[Out] out ovrMatrix4f_Raw[] twnOut);
// Computes timewarp matrices used by distortion mesh shader, these are used to adjust
// for orientation change since the last call to ovrHmd_GetEyePose for this eye.
// The ovrDistortionVertex::TimeWarpFactor is used to blend between the matrices,
// usually representing two different sides of the screen.
// Must be called on the same thread as ovrHmd_BeginFrameTiming.
public ovrMatrix4f[] ovrHmd_GetEyeTimewarpMatrices(ovrEyeType eye, ovrPosef renderPose)
{
ovrMatrix4f_Raw[] rawMats = {new ovrMatrix4f_Raw(), new ovrMatrix4f_Raw()};
ovrHmd_GetEyeTimewarpMatrices(HmdPtr, eye, renderPose, out rawMats);
ovrMatrix4f[] mats = {new ovrMatrix4f(rawMats[0]), new ovrMatrix4f(rawMats[1])};
return mats;
}
