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Core/Misc: update g3dlite lib (#2904)
* Core/Misc: update g3dlite lib * update Co-authored-by: Francesco Borzì <borzifrancesco@gmail.com>
This commit is contained in:
Viste
221
deps/g3dlite/source/Ray.cpp
vendored
221
deps/g3dlite/source/Ray.cpp
vendored
@@ -16,127 +16,128 @@
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namespace G3D {
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void Ray::set(const Vector3& origin, const Vector3& direction) {
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m_origin = origin;
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m_direction = direction;
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debugAssert(direction.isUnit());
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m_invDirection = Vector3::one() / direction;
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// ray slope
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ibyj = m_direction.x * m_invDirection.y;
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jbyi = m_direction.y * m_invDirection.x;
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jbyk = m_direction.y * m_invDirection.z;
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kbyj = m_direction.z * m_invDirection.y;
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ibyk = m_direction.x * m_invDirection.z;
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kbyi = m_direction.z * m_invDirection.x;
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// precomputed terms
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c_xy = m_origin.y - jbyi * m_origin.x;
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c_xz = m_origin.z - kbyi * m_origin.x;
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c_yx = m_origin.x - ibyj * m_origin.y;
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c_yz = m_origin.z - kbyj * m_origin.y;
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c_zx = m_origin.x - ibyk * m_origin.z;
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c_zy = m_origin.y - jbyk * m_origin.z;
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//ray slope classification
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if (m_direction.x < 0) {
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if (m_direction.y < 0) {
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if (m_direction.z < 0) {
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classification = MMM;
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} else if (m_direction.z > 0) {
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classification = MMP;
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} else { //(m_direction.z >= 0)
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classification = MMO;
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}
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} else { //(m_direction.y >= 0)
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if (m_direction.z < 0) {
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if (m_direction.y == 0) {
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classification = MOM;
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} else {
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classification = MPM;
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}
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} else { //(m_direction.z >= 0)
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if ((m_direction.y == 0) && (m_direction.z == 0)) {
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classification = MOO;
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} else if (m_direction.z == 0) {
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classification = MPO;
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} else if (m_direction.y == 0) {
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classification = MOP;
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} else {
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classification = MPP;
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}
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}
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}
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} else { //(m_direction.x >= 0)
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if (m_direction.y < 0) {
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if (m_direction.z < 0) {
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if (m_direction.x == 0) {
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classification = OMM;
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} else {
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classification = PMM;
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}
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} else { //(m_direction.z >= 0)
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if ((m_direction.x == 0) && (m_direction.z == 0)) {
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classification = OMO;
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} else if (m_direction.z == 0) {
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classification = PMO;
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} else if (m_direction.x == 0) {
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classification = OMP;
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} else {
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classification = PMP;
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}
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}
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} else { //(m_direction.y >= 0)
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if (m_direction.z < 0) {
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if ((m_direction.x == 0) && (m_direction.y == 0)) {
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classification = OOM;
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} else if (m_direction.x == 0) {
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classification = OPM;
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} else if (m_direction.y == 0) {
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classification = POM;
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} else {
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classification = PPM;
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}
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} else { //(m_direction.z > 0)
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if (m_direction.x == 0) {
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if (m_direction.y == 0) {
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classification = OOP;
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} else if (m_direction.z == 0) {
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classification = OPO;
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} else {
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classification = OPP;
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}
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} else {
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if ((m_direction.y == 0) && (m_direction.z == 0)) {
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classification = POO;
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} else if (m_direction.y == 0) {
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classification = POP;
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} else if (m_direction.z == 0) {
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classification = PPO;
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} else {
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classification = PPP;
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}
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}
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}
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}
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}
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m_origin = origin;
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m_direction = direction;
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debugAssert(direction.isUnit());
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m_invDirection = Vector3::one() / direction;
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// ray slope
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ibyj = m_direction.x * m_invDirection.y;
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jbyi = m_direction.y * m_invDirection.x;
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jbyk = m_direction.y * m_invDirection.z;
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kbyj = m_direction.z * m_invDirection.y;
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ibyk = m_direction.x * m_invDirection.z;
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kbyi = m_direction.z * m_invDirection.x;
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// precomputed terms
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c_xy = m_origin.y - jbyi * m_origin.x;
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c_xz = m_origin.z - kbyi * m_origin.x;
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c_yx = m_origin.x - ibyj * m_origin.y;
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c_yz = m_origin.z - kbyj * m_origin.y;
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c_zx = m_origin.x - ibyk * m_origin.z;
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c_zy = m_origin.y - jbyk * m_origin.z;
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//ray slope classification
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if (m_direction.x < 0) {
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if (m_direction.y < 0) {
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if (m_direction.z < 0) {
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classification = MMM;
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} else if (m_direction.z > 0) {
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classification = MMP;
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} else { //(m_direction.z >= 0)
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classification = MMO;
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}
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} else { //(m_direction.y >= 0)
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if (m_direction.z < 0) {
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if (m_direction.y == 0) {
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classification = MOM;
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} else {
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classification = MPM;
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}
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} else { //(m_direction.z >= 0)
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if ((m_direction.y == 0) && (m_direction.z == 0)) {
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classification = MOO;
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} else if (m_direction.z == 0) {
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classification = MPO;
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} else if (m_direction.y == 0) {
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classification = MOP;
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} else {
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classification = MPP;
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}
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}
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}
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} else { //(m_direction.x >= 0)
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if (m_direction.y < 0) {
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if (m_direction.z < 0) {
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if (m_direction.x == 0) {
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classification = OMM;
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} else {
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classification = PMM;
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}
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} else { //(m_direction.z >= 0)
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if ((m_direction.x == 0) && (m_direction.z == 0)) {
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classification = OMO;
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} else if (m_direction.z == 0) {
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classification = PMO;
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} else if (m_direction.x == 0) {
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classification = OMP;
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} else {
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classification = PMP;
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}
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}
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} else { //(m_direction.y >= 0)
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if (m_direction.z < 0) {
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if ((m_direction.x == 0) && (m_direction.y == 0)) {
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classification = OOM;
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} else if (m_direction.x == 0) {
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classification = OPM;
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} else if (m_direction.y == 0) {
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classification = POM;
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} else {
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classification = PPM;
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}
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} else { //(m_direction.z > 0)
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if (m_direction.x == 0) {
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if (m_direction.y == 0) {
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classification = OOP;
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} else if (m_direction.z == 0) {
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classification = OPO;
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} else {
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classification = OPP;
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}
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} else {
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if ((m_direction.y == 0) && (m_direction.z == 0)) {
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classification = POO;
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} else if (m_direction.y == 0) {
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classification = POP;
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} else if (m_direction.z == 0) {
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classification = PPO;
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} else {
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classification = PPP;
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}
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}
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}
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}
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}
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}
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Ray::Ray(class BinaryInput& b) {
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deserialize(b);
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deserialize(b);
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}
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void Ray::serialize(class BinaryOutput& b) const {
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m_origin.serialize(b);
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m_direction.serialize(b);
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m_origin.serialize(b);
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m_direction.serialize(b);
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}
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void Ray::deserialize(class BinaryInput& b) {
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m_origin.deserialize(b);
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m_direction.deserialize(b);
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set(m_origin, m_direction);
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m_origin.deserialize(b);
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m_direction.deserialize(b);
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set(m_origin, m_direction);
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}
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