diff options
| -rw-r--r-- | .gitignore | 3 | ||||
| -rw-r--r-- | modules/mono/glue/Managed/Files/Basis.cs | 32 | ||||
| -rw-r--r-- | modules/mono/glue/Managed/Files/Transform.cs | 19 |
3 files changed, 54 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore index 6db75f2324..420a25ac59 100644 --- a/.gitignore +++ b/.gitignore @@ -91,6 +91,9 @@ bld/ *.debug *.dSYM +# Visual Studio cache/options directory +.vs/ + # MSTest test Results [Tt]est[Rr]esult*/ [Bb]uild[Ll]og.* diff --git a/modules/mono/glue/Managed/Files/Basis.cs b/modules/mono/glue/Managed/Files/Basis.cs index ec96a9e2fa..a5618cb28d 100644 --- a/modules/mono/glue/Managed/Files/Basis.cs +++ b/modules/mono/glue/Managed/Files/Basis.cs @@ -165,6 +165,38 @@ namespace Godot ); } + internal Quat RotationQuat() + { + Basis orthonormalizedBasis = Orthonormalized(); + real_t det = orthonormalizedBasis.Determinant(); + if (det < 0) + { + // Ensure that the determinant is 1, such that result is a proper rotation matrix which can be represented by Euler angles. + orthonormalizedBasis = orthonormalizedBasis.Scaled(Vector3.NegOne); + } + + return orthonormalizedBasis.Quat(); + } + + internal void SetQuantScale(Quat quat, Vector3 scale) + { + SetDiagonal(scale); + Rotate(quat); + } + + private void Rotate(Quat quat) + { + this *= new Basis(quat); + } + + private void SetDiagonal(Vector3 diagonal) + { + _x = new Vector3(diagonal.x, 0, 0); + _y = new Vector3(0, diagonal.y, 0); + _z = new Vector3(0, 0, diagonal.z); + + } + public real_t Determinant() { return this[0, 0] * (this[1, 1] * this[2, 2] - this[2, 1] * this[1, 2]) - diff --git a/modules/mono/glue/Managed/Files/Transform.cs b/modules/mono/glue/Managed/Files/Transform.cs index e432d5b52c..068007d7f0 100644 --- a/modules/mono/glue/Managed/Files/Transform.cs +++ b/modules/mono/glue/Managed/Files/Transform.cs @@ -20,6 +20,25 @@ namespace Godot return new Transform(basisInv, basisInv.Xform(-origin)); } + public Transform InterpolateWith(Transform transform, real_t c) + { + /* not sure if very "efficient" but good enough? */ + + Vector3 sourceScale = basis.Scale; + Quat sourceRotation = basis.RotationQuat(); + Vector3 sourceLocation = origin; + + Vector3 destinationScale = transform.basis.Scale; + Quat destinationRotation = transform.basis.RotationQuat(); + Vector3 destinationLocation = transform.origin; + + var interpolated = new Transform(); + interpolated.basis.SetQuantScale(sourceRotation.Slerp(destinationRotation, c).Normalized(), sourceScale.LinearInterpolate(destinationScale, c)); + interpolated.origin = sourceLocation.LinearInterpolate(destinationLocation, c); + + return interpolated; + } + public Transform Inverse() { Basis basisTr = basis.Transposed(); |