diff options
Diffstat (limited to 'indra/llmath/m4math.h')
| -rw-r--r-- | indra/llmath/m4math.h | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/indra/llmath/m4math.h b/indra/llmath/m4math.h index 6ec9958491..a7dce10397 100644 --- a/indra/llmath/m4math.h +++ b/indra/llmath/m4math.h @@ -119,6 +119,8 @@ public: ~LLMatrix4(void); // Destructor + LLSD getValue() const; + void setValue(const LLSD&); ////////////////////////////// // @@ -132,6 +134,7 @@ public: // various useful matrix functions const LLMatrix4& setIdentity(); // Load identity matrix + bool isIdentity() const; const LLMatrix4& setZero(); // Clears matrix to all zeros. const LLMatrix4& initRotation(const F32 angle, const F32 x, const F32 y, const F32 z); // Calculate rotation matrix by rotating angle radians about (x, y, z) @@ -153,6 +156,7 @@ public: const LLMatrix4& initRotTrans(const F32 roll, const F32 pitch, const F32 yaw, const LLVector4 &pos); // Rotation from Euler + translation const LLMatrix4& initRotTrans(const LLQuaternion &q, const LLVector4 &pos); // Set with Quaternion and position + const LLMatrix4& initScale(const LLVector3 &scale); // Set all const LLMatrix4& initAll(const LLVector3 &scale, const LLQuaternion &q, const LLVector3 &pos); @@ -219,10 +223,7 @@ public: // Operators // -// Not implemented to enforce code that agrees with symbolic syntax -// friend LLVector4 operator*(const LLMatrix4 &a, const LLVector4 &b); // Apply rotation a to vector b - -// friend inline LLMatrix4 operator*(const LLMatrix4 &a, const LLMatrix4 &b); // Return a * b + // friend inline LLMatrix4 operator*(const LLMatrix4 &a, const LLMatrix4 &b); // Return a * b friend LLVector4 operator*(const LLVector4 &a, const LLMatrix4 &b); // Return transform of vector a by matrix b friend const LLVector3 operator*(const LLVector3 &a, const LLMatrix4 &b); // Return full transform of a by matrix b friend LLVector4 rotate_vector(const LLVector4 &a, const LLMatrix4 &b); // Rotates a but does not translate @@ -230,6 +231,7 @@ public: friend bool operator==(const LLMatrix4 &a, const LLMatrix4 &b); // Return a == b friend bool operator!=(const LLMatrix4 &a, const LLMatrix4 &b); // Return a != b + friend bool operator<(const LLMatrix4 &a, const LLMatrix4& b); // Return a < b friend const LLMatrix4& operator+=(LLMatrix4 &a, const LLMatrix4 &b); // Return a + b friend const LLMatrix4& operator-=(LLMatrix4 &a, const LLMatrix4 &b); // Return a - b @@ -263,6 +265,30 @@ inline const LLMatrix4& LLMatrix4::setIdentity() return (*this); } +inline bool LLMatrix4::isIdentity() const +{ + return + mMatrix[0][0] == 1.f && + mMatrix[0][1] == 0.f && + mMatrix[0][2] == 0.f && + mMatrix[0][3] == 0.f && + + mMatrix[1][0] == 0.f && + mMatrix[1][1] == 1.f && + mMatrix[1][2] == 0.f && + mMatrix[1][3] == 0.f && + + mMatrix[2][0] == 0.f && + mMatrix[2][1] == 0.f && + mMatrix[2][2] == 1.f && + mMatrix[2][3] == 0.f && + + mMatrix[3][0] == 0.f && + mMatrix[3][1] == 0.f && + mMatrix[3][2] == 0.f && + mMatrix[3][3] == 1.f; +} + /* inline LLMatrix4 operator*(const LLMatrix4 &a, const LLMatrix4 &b) |