Matrix4::isAffineEqual implemented by Eigen

libs/math/Matrix4.h

@@ -367,11 +367,11 @@ class Matrix4
      */
     void scaleBy(const Vector3& scale, const Vector3& pivot);
 
-    /**
-     * Returns true if this and the given matrix are exactly element-wise equal.
-     * This and the other matrix must be affine.
-     */
-    bool isAffineEqual(const Matrix4& other) const;
+    /// Compare the affine part of this matrix with another for equality
+    bool isAffineEqual(const Matrix4& other) const
+    {
+        return eigen().affine() == other.eigen().affine();
+    }
 
     /**
      * Returns RIGHTHANDED if this is right-handed, else returns LEFTHANDED.
@@ -499,22 +499,6 @@ inline bool operator!=(const Matrix4& l, const Matrix4& r)
     return !(l == r);
 }
 
-inline bool Matrix4::isAffineEqual(const Matrix4& other) const
-{
-    return xx() == other.xx() &&
-            xy() == other.xy() &&
-            xz() == other.xz() &&
-            yx() == other.yx() &&
-            yy() == other.yy() &&
-            yz() == other.yz() &&
-            zx() == other.zx() &&
-            zy() == other.zy() &&
-            zz() == other.zz() &&
-            tx() == other.tx() &&
-            ty() == other.ty() &&
-            tz() == other.tz();
-}
-
 inline Matrix4::Handedness Matrix4::getHandedness() const
 {
     return (xCol().getVector3().crossProduct(yCol().getVector3()).dot(zCol().getVector3()) < 0.0f) ? LEFTHANDED : RIGHTHANDED;