private void SetProjectionOffset()
{
viewCenter = OculusClient.GetScreenSize().X * 0.212f; // 0.25f 0.212f
eyeProjectionShift = viewCenter - OculusClient.GetLensSeparationDistance() * 0.5f;
projectionCenterOffset = 4.0f * eyeProjectionShift / OculusClient.GetScreenSize().X;
projCenter = originalProjectionMatrix;
projLeft = Matrix.CreateTranslation(projectionCenterOffset, 0, 0) * projCenter;
projRight = Matrix.CreateTranslation(-projectionCenterOffset, 0, 0) * projCenter;
halfIPD = OculusClient.GetInterpupillaryDistance() * 0.5f;
viewLeft = viewMatrix * Matrix.CreateTranslation(halfIPD, 0, 0);
viewRight = viewMatrix * Matrix.CreateTranslation(-halfIPD, 0, 0);
}
private void InitOculus()
{
// Load the Oculus Rift Distortion Shader
// https://mega.co.nz/#!E4YkjJ6K!MuIDuB78NwgHsGgeONikDAT_OLJQ0ZeLXbfGF1OAhzw
oculusRiftDistortionShader = Content.Load <Effect>(@"Shader/OculusRift");
aspectRatio = (float)(OculusClient.GetScreenResolution().X * 0.5f / (float)(OculusClient.GetScreenResolution().Y));
fov_d = OculusClient.GetEyeToScreenDistance();
fov_x = OculusClient.GetScreenSize().Y *scaleImageFactor;
yfov = 2.0f * (float)Math.Atan(fov_x / fov_d);
// Set ProjectionMatrix
originalProjectionMatrix = Matrix.CreatePerspectiveFieldOfView(yfov, aspectRatio, 0.05f, 10000.0f);
// Init left and right RenderTarget
renderTargetLeft = new RenderTarget2D(device, graphics.PreferredBackBufferWidth / 2, graphics.PreferredBackBufferHeight, true, SurfaceFormat.Bgr565, DepthFormat.Depth24Stencil8);
renderTargetRight = new RenderTarget2D(device, graphics.PreferredBackBufferWidth / 2, graphics.PreferredBackBufferHeight, true, SurfaceFormat.Bgr565, DepthFormat.Depth24Stencil8);
OculusClient.SetSensorPredictionTime(0, 0.03f);
UpdateResolutionAndRenderTargets();
}