/// <summary>
/// Gets the pose of the given eye, predicted for the time when the current frame will scan out.
/// </summary>
public Pose GetEyePose
(dpncEYE eye
, dpnQuarterion pose
, dpnVector3 position // position 在当前应该已经被转成左手系（Unity）了
, float interpupillary_distance
)
{
Quaternion rot = pose.ToQuaternion(); // 右手螺旋, 左手系 -> 左手螺旋，左手系（Unity）
float eye_offset_x = 0.5f * interpupillary_distance;
eye_offset_x = (eye == dpncEYE.LEFT) ? -eye_offset_x : eye_offset_x;
float neck_to_eye_height = 0.0f;
float eye_depth = 0.0f; // PC: head model do in native sdk, Android: for compatible old game, do here as old apps
#if UNITY_ANDROID && !UNITY_EDITOR
float eye_height = 1.6f;
float player_height = eye_height * 1.067f; // eye should be at 15/16 of total height.
neck_to_eye_height = player_height * 0.0625f * DpnManager.worldScale; //neck_to_eye_height should be 1/16 of total height.
eye_depth = 0.0805f * DpnManager.worldScale;
#endif
Vector3 neck_model = new Vector3(0.0f, neck_to_eye_height, eye_depth);
Vector3 pos = rot * (new Vector3(eye_offset_x, 0.0f, 0.0f) + neck_model); // neck-pivot space
pos -= neck_model; // what it does is converting pos to initially oriented center-eye space, making the initial position of center eye (0,0,0)
Pose ret = new Pose();
ret.position = pos + new Vector3(position.x, position.y, position.z);
ret.orientation = rot;
return(ret);
}
// this is used for unity 5.6
//public IntPtr GetEyeTexturePtr56(dpncEYE eye) { return _texture_ptrs[(_current_texture_index + _texture_count + (int)eye - 2) % _texture_count]; }
private void ConfigureEyeTexture
(int buffer_index, dpncEYE eye
, TEXTURE_DEPTH texture_depth
, RenderTextureFormat texture_format
, int texture_w, int texture_h
)
{
int tex_index = buffer_index + (int)eye;
_textures[tex_index] = new RenderTexture
(texture_w, texture_h
, (int)texture_depth, texture_format);
if (QualitySettings.antiAliasing != 0)
{
_textures[tex_index].antiAliasing = QualitySettings.antiAliasing;
}
else
{
#if UNITY_ANDROID && !UNITY_EDITOR
_textures[tex_index].antiAliasing = 4;
#else
_textures[tex_index].antiAliasing = 1;
#endif
}
_textures[tex_index].Create();
_texture_ptrs[tex_index] = _textures[tex_index].GetNativeTexturePtr();
}
public static bool SetTextures(IntPtr tex_ptr, dpncEYE eye)
{
bool ret;
ret = DpnuSetTexture(tex_ptr, (int)eye, 3, // distortion time warp
DpnManager.DeviceInfo.resolution_x, DpnManager.DeviceInfo.resolution_y);
if (!ret)
{
return(false);
}
return(true);
}
/// <summary>
/// invoked by DpnPostRender
/// </summary>
public void _EndEye(Camera cam)
{
dpncEYE eye = ((PLUGIN_EVENT_TYPE)cam.depth == PLUGIN_EVENT_TYPE.RightEyeEndFrame) ? dpncEYE.RIGHT : dpncEYE.LEFT;
dpnRect view = new dpnRect(new Rect(0, 0, Camera.current.targetTexture.width, Camera.current.targetTexture.height));
IntPtr tempPtr = Marshal.AllocHGlobal(Marshal.SizeOf(view));
Marshal.StructureToPtr(view, tempPtr, false);
Composer.PostRender(RENDER_EVENT.Postnontransparent, (int)tempPtr);
#if UNITY_5_6_0 || UNITY_5_6_1
IntPtr eyeTexturePtr = prev;
prev = Camera.current.targetTexture.GetNativeTexturePtr();
#else
IntPtr eyeTexturePtr = Camera.current.targetTexture.GetNativeTexturePtr();
#endif
Composer.SetTextures(eyeTexturePtr, eye);
}
/// <summary>
/// invoked by DpnPostRender
/// </summary>
public void _EndEye(Camera cam)
{
dpncEYE eye = ((PLUGIN_EVENT_TYPE)cam.depth == PLUGIN_EVENT_TYPE.RightEyeEndFrame) ? dpncEYE.RIGHT : dpncEYE.LEFT;
dpnRect view = new dpnRect(new Rect(0, 0, Camera.current.targetTexture.width, Camera.current.targetTexture.height));
IntPtr tempPtr = Marshal.AllocHGlobal(Marshal.SizeOf(view));
Marshal.StructureToPtr(view, tempPtr, false);
if (!DpnDevice.bQCOM) // XR1: support texture clamp to board, don't need app fill edge as black. Plugin use partial clear to filledge, which cause enable foveated rendering failed
{
Composer.PostRender(RENDER_EVENT.Postnontransparent, (int)tempPtr);
}
#if UNITY_5_6_0 || UNITY_5_6_1
IntPtr eyeTexturePtr = prev;
prev = Camera.current.targetTexture.GetNativeTexturePtr();
#else
IntPtr eyeTexturePtr = Camera.current.targetTexture.GetNativeTexturePtr();
#endif
Composer.SetTextures(eyeTexturePtr, eye);
}
/// <summary>
/// Gets the currently active render texture's native ID for the given eye.
/// </summary>
public IntPtr GetEyeTexturePtr(dpncEYE eye)
{
return(_texture_ptrs[_current_texture_index + (int)eye]);
}
/// <summary>
/// Gets the currently active render texture for the given eye.
/// </summary>
public RenderTexture GetEyeTexture(dpncEYE eye)
{
return(_textures[_current_texture_index + (int)eye]);
}