SCNMatrix4 MakeProjectionMatrix(UIInterfaceOrientation orientation)
{
const int bufferSize = 16;
float[] projectionBuffer = new float[bufferSize];
unsafe
{
fixed(float *ptr = &projectionBuffer[0])
{
SDPlugin.SixDegreesSDK_GetProjection(ptr, bufferSize);
}
}
var matrix = new Matrix4
{
Row0 = new Vector4(projectionBuffer[0], projectionBuffer[1], projectionBuffer[2], projectionBuffer[3]),
Row1 = new Vector4(projectionBuffer[4], projectionBuffer[5], projectionBuffer[6], projectionBuffer[7]),
Row2 = new Vector4(projectionBuffer[8], projectionBuffer[9], projectionBuffer[10], projectionBuffer[11]),
Row3 = new Vector4(projectionBuffer[12], projectionBuffer[13], projectionBuffer[14], projectionBuffer[15])
};
var rotation = MakeInterfaceRotationRadians(orientation);
var matrixRotated = CreateMatrixFromRotation(rotation, 0, 0, 1);
var newMatrix = matrix * matrixRotated;
SCNMatrix4 poseMatrix = new SCNMatrix4(newMatrix.Row0, newMatrix.Row1, newMatrix.Row2, newMatrix.Row3);
return(poseMatrix);
}