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llmath and llcommon updates. Marginal.

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This commit is contained in:
Shyotl
2011-05-18 14:36:05 -05:00
parent 62e3aa10c1
commit 5f6fc78706
18 changed files with 494 additions and 118 deletions
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39
indra/llmath/llplane.h
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@@ -48,13 +48,13 @@ public:
LLPlane() {}; // no default constructor
LLPlane(const LLVector3 &p0, F32 d) { setVec(p0, d); }
LLPlane(const LLVector3 &p0, const LLVector3 &n) { setVec(p0, n); }
void setVec(const LLVector3 &p0, F32 d) { LLVector4::setVec(p0[0], p0[1], p0[2], d); }
void setVec(const LLVector3 &p0, const LLVector3 &n)
inline void setVec(const LLVector3 &p0, F32 d) { LLVector4::setVec(p0[0], p0[1], p0[2], d); }
inline void setVec(const LLVector3 &p0, const LLVector3 &n)
{
F32 d = -(p0 * n);
setVec(n, d);
}
void setVec(const LLVector3 &p0, const LLVector3 &p1, const LLVector3 &p2)
inline void setVec(const LLVector3 &p0, const LLVector3 &p1, const LLVector3 &p2)
{
LLVector3 u, v, w;
u = p1 - p0;
@@ -64,8 +64,39 @@ public:
F32 d = -(w * p0);
setVec(w, d);
}
LLPlane& operator=(const LLVector4& v2) { LLVector4::setVec(v2[0],v2[1],v2[2],v2[3]); return *this;}
inline LLPlane& operator=(const LLVector4& v2) { LLVector4::setVec(v2[0],v2[1],v2[2],v2[3]); return *this;}
inline void set(const LLPlane& p2) { LLVector4::setVec(p2); }
//
F32 dist(const LLVector3 &v2) const { return mV[0]*v2[0] + mV[1]*v2[1] + mV[2]*v2[2] + mV[3]; }
// reset the vector to 0, 0, 0, 1
inline void clear() { LLVector4::setVec(0, 0, 0, 1); }
inline void getVector3(LLVector3& vec) const { vec.set(mV[0], mV[1], mV[2]); }
// Retrieve the mask indicating which of the x, y, or z axis are greater or equal to zero.
inline U8 calcPlaneMask()
{
U8 mask = 0;
if (mV[0] >= 0)
{
mask |= 1;
}
if (mV[1] >= 0)
{
mask |= 2;
}
if (mV[2] >= 0)
{
mask |= 4;
}
return mask;
}
};