public static Matrix4x4 GetAlternateLandscapeProjectionMatrix()
{
//Debug.Log("landscape hfov=" + Constants.CAM_LARGE_FOV + " vfov=" + Constants.CAM_SMALL_FOV);
float[] mat_data = new float[16];
PikkartARCore.GetProjectionMatrix(mat_data);
/*alternateLandscapeProjectionMatrix.m00 = mat_data[0];
* alternateLandscapeProjectionMatrix.m01 = mat_data[1];
* alternateLandscapeProjectionMatrix.m02 = mat_data[2];
* alternateLandscapeProjectionMatrix.m03 = mat_data[3];
*
* alternateLandscapeProjectionMatrix.m10 = mat_data[4];
* alternateLandscapeProjectionMatrix.m11 = mat_data[5];
* alternateLandscapeProjectionMatrix.m12 = mat_data[6];
* alternateLandscapeProjectionMatrix.m13 = mat_data[7];
*
* alternateLandscapeProjectionMatrix.m20 = mat_data[8];
* alternateLandscapeProjectionMatrix.m21 = mat_data[9];
* alternateLandscapeProjectionMatrix.m22 = mat_data[10];
* alternateLandscapeProjectionMatrix.m23 = mat_data[11];
*
* alternateLandscapeProjectionMatrix.m30 = mat_data[12];
* alternateLandscapeProjectionMatrix.m31 = mat_data[13];
* alternateLandscapeProjectionMatrix.m32 = mat_data[14];
* alternateLandscapeProjectionMatrix.m33 = mat_data[15];*/
//horizontal field of view = 2 atan(0.5 width / focallength)
double v = 1.0 / (double)(mat_data[0]);
double at = Math.Atan(v);
double hfov = 2.0 * at;
float camera_ar = Constants.CAMERA_REQUESTED_WIDTH / Constants.CAMERA_REQUESTED_HEIGHT;
float t = ScreenUtilities.GetPortraitAspectRatio() * camera_ar * (float)Math.Tan(hfov / 2.0);
float a = 2.0f * (float)Math.Atan((double)(t)) * 57.2958f;
alternateLandscapeProjectionMatrix = Matrix4x4.Perspective(
a,
ScreenUtilities.GetLandscapeAspectRatio(),
Constants.NEAR_CLIP_PLANE,
Constants.FAR_CLIP_PLANE);
return(alternateLandscapeProjectionMatrix);
}
public static Matrix4x4 GetAlternatePortraitProjectionMatrix()
{
//Debug.Log("portrait hfov=" + Constants.CAM_LARGE_FOV + " vfov=" + Constants.CAM_SMALL_FOV);
float[] mat_data = new float[16];
PikkartARCore.GetProjectionMatrix(mat_data);
/*alternateLandscapeProjectionMatrix.m00 = mat_data[0];
* alternateLandscapeProjectionMatrix.m01 = mat_data[1];
* alternateLandscapeProjectionMatrix.m02 = mat_data[2];
* alternateLandscapeProjectionMatrix.m03 = mat_data[3];
*
* alternateLandscapeProjectionMatrix.m10 = mat_data[4];
* alternateLandscapeProjectionMatrix.m11 = mat_data[5];
* alternateLandscapeProjectionMatrix.m12 = mat_data[6];
* alternateLandscapeProjectionMatrix.m13 = mat_data[7];
*
* alternateLandscapeProjectionMatrix.m20 = mat_data[8];
* alternateLandscapeProjectionMatrix.m21 = mat_data[9];
* alternateLandscapeProjectionMatrix.m22 = mat_data[10];
* alternateLandscapeProjectionMatrix.m23 = mat_data[11];
*
* alternateLandscapeProjectionMatrix.m30 = mat_data[12];
* alternateLandscapeProjectionMatrix.m31 = mat_data[13];
* alternateLandscapeProjectionMatrix.m32 = mat_data[14];
* alternateLandscapeProjectionMatrix.m33 = mat_data[15];*/
double v = 1.0 / (double)(mat_data[0]);
double at = Math.Atan(v);
double hfov = 2.0 * at * 57.2958;
alternatePortraitProjectionMatrix = Matrix4x4.Perspective(
(float)hfov,
ScreenUtilities.GetPortraitAspectRatio(),
Constants.NEAR_CLIP_PLANE,
Constants.FAR_CLIP_PLANE);
return(alternatePortraitProjectionMatrix);
}
