mirror of https://github.com/AxioDL/zeus.git
22 lines
602 B
C++
22 lines
602 B
C++
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#include "Math.hpp"
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const CVector3f Math::kUpVec(0.0, 0.0, 1.0);
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const CVector3f Math::kRadToDegVec(180.0f / M_PI);
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const CVector3f Math::kDegToRadVec(M_PI / 180.0f);
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CTransform Math::lookAt(const CVector3f& pos, const CVector3f& lookPos, const CVector3f& up)
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{
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CVector3f vLook,vRight,vUp;
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vLook = pos - lookPos;
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vLook.normalize();
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vRight = up.cross(vLook);
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vRight.normalize();
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vUp = vLook.cross(vRight);
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CMatrix3f rmBasis(vRight, vUp, vLook);
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return CTransform(rmBasis.transposed(), CVector3f(-pos.dot(vRight), -pos.dot(vUp), -pos.dot(vLook)));
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}
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