//-------------------------------------------------------------------------------------
// ***** Rendering API Thread Safety
// All of rendering functions including the configure and frame functions
// are *NOT thread safe*. It is ok to use ConfigureRendering on one thread and handle
// frames on another thread, but explicit synchronization must be done since
// functions that depend on configured state are not reentrant.
//
// As an extra requirement, any of the following calls must be done on
// the render thread, which is the same thread that calls ovrHmd_BeginFrame
// or ovrHmd_BeginFrameTiming.
// - ovrHmd_EndFrame
// - ovrHmd_GetEyeTimewarpMatrices
//-------------------------------------------------------------------------------------
// ***** SDK Distortion Rendering Functions
// These functions support rendering of distortion by the SDK through direct
// access to the underlying rendering API, such as D3D or GL.
// This is the recommended approach since it allows better support for future
// Oculus hardware, and enables a range of low-level optimizations.
/// <summary>
/// Configures rendering and fills in computed render parameters.
/// This function can be called multiple times to change rendering settings.
/// eyeRenderDescOut is a pointer to an array of two EyeRenderDesc structs
/// that are used to return complete rendering information for each eye.
/// - apiConfig provides D3D/OpenGL specific parameters. Pass null
/// to shutdown rendering and release all resources.
/// - distortionCaps describe desired distortion settings.
/// </summary>
public EyeRenderDesc[] ConfigureRendering(ref RenderAPIConfig renderAPIConfig, FovPort[] eyeFovIn, uint distortionCaps)
{
EyeRenderDesc[] eyeRenderDesc = new EyeRenderDesc[] { new EyeRenderDesc(), new EyeRenderDesc() };
RenderAPIConfig_Raw rawConfig = renderAPIConfig.ToRaw();
bool result = ovrHmd_ConfigureRendering(HmdPtr, ref rawConfig, distortionCaps, eyeFovIn, eyeRenderDesc) != 0;
if (result)
return eyeRenderDesc;
return null;
}
private void ConfigureEyeDesc(OVREye eye)
{
#if !UNITY_ANDROID || UNITY_EDITOR
HmdDesc desc = OVRManager.capiHmd.GetDesc();
FovPort fov = desc.DefaultEyeFov[(int)eye];
fov.LeftTan = fov.RightTan = Mathf.Max(fov.LeftTan, fov.RightTan);
fov.UpTan = fov.DownTan = Mathf.Max(fov.UpTan, fov.DownTan);
// Configure Stereo settings. Default pixel density is one texel per pixel.
float desiredPixelDensity = 1f;
Sizei texSize = OVRManager.capiHmd.GetFovTextureSize((Ovr.Eye)eye, fov, desiredPixelDensity);
float fovH = 2f * Mathf.Rad2Deg * Mathf.Atan(fov.LeftTan);
float fovV = 2f * Mathf.Rad2Deg * Mathf.Atan(fov.UpTan);
eyeDescs[(int)eye] = new EyeRenderDesc()
{
resolution = texSize.ToVector2(),
fov = new Vector2(fovH, fovV)
};
#else
eyeDescs[(int)eye] = new EyeRenderDesc()
{
resolution = new Vector2(1024, 1024),
fov = new Vector2(90, 90)
};
#endif
}
private void ConfigureEyeDesc(OVREye eye)
{
Vector2 texSize = Vector2.zero;
Vector2 fovSize = Vector2.zero;
#if !UNITY_ANDROID || UNITY_EDITOR
FovPort fovPort = OVRManager.capiHmd.GetDesc().DefaultEyeFov[(int)eye];
fovPort.LeftTan = fovPort.RightTan = Mathf.Max(fovPort.LeftTan, fovPort.RightTan);
fovPort.UpTan = fovPort.DownTan = Mathf.Max(fovPort.UpTan, fovPort.DownTan);
texSize = OVRManager.capiHmd.GetFovTextureSize((Ovr.Eye)eye, fovPort, OVRManager.instance.nativeTextureScale).ToVector2();
fovSize = new Vector2(2f * Mathf.Rad2Deg * Mathf.Atan(fovPort.LeftTan), 2f * Mathf.Rad2Deg * Mathf.Atan(fovPort.UpTan));
#else
texSize = new Vector2(1024, 1024) * OVRManager.instance.nativeTextureScale;
fovSize = new Vector2(90, 90);
#endif
eyeDescs[(int)eye] = new EyeRenderDesc()
{
resolution = texSize,
fov = fovSize
};
}
private void ConfigureEyeDesc(OVREye eye)
{
Vector2 texSize = Vector2.zero;
Vector2 fovSize = Vector2.zero;
#if !UNITY_ANDROID || UNITY_EDITOR
if (!OVRManager.instance.isVRPresent)
return;
OVRPlugin.Sizei size = OVRPlugin.GetEyeTextureSize((OVRPlugin.Eye)eye);
OVRPlugin.Frustumf frustum = OVRPlugin.GetEyeFrustum((OVRPlugin.Eye)eye);
texSize = new Vector2(size.w, size.h);
fovSize = Mathf.Rad2Deg * new Vector2(frustum.fovX, frustum.fovY);
#else
texSize = new Vector2(1024, 1024) * OVRManager.instance.nativeTextureScale;
fovSize = new Vector2(90, 90);
#endif
eyeDescs[(int)eye] = new EyeRenderDesc()
{
resolution = texSize,
fov = fovSize
};
}
