|
private SetupIntrinsic ( |
||
| intrinsics | Color camera intrinsics. | |
| return | void | |
/// <summary>
/// Update AR screen material with camera texture size data
/// (and distortion parameters if using distortion post-process filter).
/// </summary>
/// <param name="mat">Material to update.</param>
/// <param name="arPostProcess">ARCameraPostProcess script that handles distortion for this material instance
/// (null if none).</param>
/// <param name="intrinsics">Tango camera intrinsics for the color camera.</param>
private static void _MaterialUpdateForIntrinsics(Material mat, ARCameraPostProcess arPostProcess, TangoCameraIntrinsics intrinsics)
{
if (arPostProcess != null)
{
// ARCameraPostProcess should take care of setting everything up for all materials involved.
arPostProcess.SetupIntrinsic(intrinsics, mat);
}
else
{
// If not handling distortion, all the material needs to know is camera image dimensions.
mat.SetFloat("_Width", (float)intrinsics.width);
mat.SetFloat("_Height", (float)intrinsics.height);
}
}
/// <summary>
/// This is called when succesfully connected to the Tango service.
/// </summary>
public void OnTangoServiceConnected()
{
// Set up the size of ARScreen based on camera intrinsics.
TangoCameraIntrinsics intrinsics = new TangoCameraIntrinsics();
VideoOverlayProvider.GetIntrinsics(TangoEnums.TangoCameraId.TANGO_CAMERA_COLOR, intrinsics);
if (intrinsics.width != 0 && intrinsics.height != 0)
{
m_arCameraPostProcess.SetupIntrinsic(intrinsics);
Camera.main.projectionMatrix = ProjectionMatrixForCameraIntrinsics((float)intrinsics.width,
(float)intrinsics.height,
(float)intrinsics.fx,
(float)intrinsics.fy,
(float)intrinsics.cx,
(float)intrinsics.cy,
0.1f,
1000.0f);
// Here we are scaling the image plane to make sure the image plane's ratio is set as the
// color camera image ratio.
// If we don't do this, because we are drawing the texture fullscreen, the image plane will
// be set to the screen's ratio.
float widthRatio = (float)Screen.width / (float)intrinsics.width;
float heightRatio = (float)Screen.height / (float)intrinsics.height;
if (widthRatio >= heightRatio)
{
float normalizedOffset = ((widthRatio / heightRatio) - 1.0f) / 2.0f;
_SetScreenVertices(0, normalizedOffset);
}
else
{
float normalizedOffset = ((heightRatio / widthRatio) - 1.0f) / 2.0f;
_SetScreenVertices(normalizedOffset, 0);
}
}
else
{
m_arCameraPostProcess.enabled = false;
}
}
/// <summary>
/// This is called when succesfully connected to the Tango service.
/// </summary>
public void OnTangoServiceConnected()
{
// Set up the size of ARScreen based on camera intrinsics.
TangoCameraIntrinsics intrinsics = new TangoCameraIntrinsics();
VideoOverlayProvider.GetIntrinsics(TangoEnums.TangoCameraId.TANGO_CAMERA_COLOR, intrinsics);
if (intrinsics.width != 0 && intrinsics.height != 0)
{
Camera camera = GetComponent <Camera>();
if (camera != null)
{
// If this script is attached to a camera, then the camera is an Augmented Reality camera. The color
// camera image then must fill the viewport. That means we must clip the color camera image to make
// its ratio the same as the Unity camera. If we don't do this the color camera image will be
// stretched non-uniformly, making a circle into an ellipse.
float widthRatio = (float)camera.pixelWidth / (float)intrinsics.width;
float heightRatio = (float)camera.pixelHeight / (float)intrinsics.height;
if (widthRatio >= heightRatio)
{
m_uOffset = 0;
m_vOffset = (1 - (heightRatio / widthRatio)) / 2;
}
else
{
m_uOffset = (1 - (widthRatio / heightRatio)) / 2;
m_vOffset = 0;
}
m_arCameraPostProcess.SetupIntrinsic(intrinsics);
_MeshUpdateForIntrinsics(GetComponent <MeshFilter>().mesh, m_uOffset, m_vOffset);
_CameraUpdateForIntrinsics(camera, intrinsics, m_uOffset, m_vOffset);
}
}
else
{
m_uOffset = 0;
m_vOffset = 0;
m_arCameraPostProcess.enabled = false;
}
}
/// <summary>
/// Update AR screen rendering and attached Camera's projection matrix.
/// </summary>
/// <param name="displayRotation">Activity (screen) rotation.</param>
/// <param name="colorCameraRotation">Color camera sensor rotation.</param>
private void _SetRenderAndCamera(OrientationManager.Rotation displayRotation,
OrientationManager.Rotation colorCameraRotation)
{
float cameraWidth = (float)Screen.width;
float cameraHeight = (float)Screen.height;
#pragma warning disable 0219
// Here we are computing if current display orientation is landscape or portrait.
// AndroidHelper.GetAndroidDefaultOrientation() returns 1 if device default orientation is in portrait,
// returns 2 if device default orientation is landscape. Adding device default orientation with
// how much the display is rotated from default orientation will get us the result of current display
// orientation. (landscape vs. portrait)
bool isLandscape = (AndroidHelper.GetDefaultOrientation() + (int)displayRotation) % 2 == 0;
bool needToFlipCameraRatio = false;
float cameraRatio = (float)Screen.width / (float)Screen.height;
#pragma warning restore 0219
#if !UNITY_EDITOR
// In most cases, we don't need to flip the camera width and height. However, in some cases Unity camera
// only updates a couple of frames after the display changed callback from Android; thus, we need to flip the width
// and height in this case.
//
// This does not happen in the editor, because the emulated device does not ever rotate.
needToFlipCameraRatio = (!isLandscape & (cameraRatio > 1.0f)) || (isLandscape & (cameraRatio < 1.0f));
if (needToFlipCameraRatio)
{
cameraRatio = 1.0f / cameraRatio;
float tmp = cameraWidth;
cameraWidth = cameraHeight;
cameraHeight = tmp;
}
#endif
TangoCameraIntrinsics alignedIntrinsics = new TangoCameraIntrinsics();
TangoCameraIntrinsics intrinsics = new TangoCameraIntrinsics();
VideoOverlayProvider.GetDeviceOrientationAlignedIntrinsics(TangoEnums.TangoCameraId.TANGO_CAMERA_COLOR,
alignedIntrinsics);
VideoOverlayProvider.GetIntrinsics(TangoEnums.TangoCameraId.TANGO_CAMERA_COLOR,
intrinsics);
if (alignedIntrinsics.width != 0 && alignedIntrinsics.height != 0)
{
// The camera to which this script is attached is an Augmented Reality camera. The color camera
// image must fill that camera's viewport. That means we must clip the color camera image to make
// its ratio the same as the Unity camera. If we don't do this the color camera image will be
// stretched non-uniformly, making a circle into an ellipse.
float widthRatio = (float)cameraWidth / (float)alignedIntrinsics.width;
float heightRatio = (float)cameraHeight / (float)alignedIntrinsics.height;
if (widthRatio >= heightRatio)
{
m_uOffset = 0;
m_vOffset = (1 - (heightRatio / widthRatio)) / 2;
}
else
{
m_uOffset = (1 - (widthRatio / heightRatio)) / 2;
m_vOffset = 0;
}
// Note that here we are passing in non-inverted intrinsics, because the YUV conversion is still operating
// on native buffer layout.
OrientationManager.Rotation rotation = TangoSupport.RotateFromAToB(displayRotation, colorCameraRotation);
_MaterialUpdateForIntrinsics(m_uOffset, m_vOffset, rotation);
_CameraUpdateForIntrinsics(m_camera, alignedIntrinsics, m_uOffset, m_vOffset);
if (m_arCameraPostProcess != null)
{
m_arCameraPostProcess.SetupIntrinsic(intrinsics);
}
}
else
{
Debug.LogError("AR Camera intrinsic is not valid.");
}
}