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Fix for swept box rays that were never really working properly with OBBs. (IntersectRayWithOBB) #590

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Fix for swept box rays that were never really working properly with OBBs. (IntersectRayWithOBB) #590

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10 changes: 5 additions & 5 deletions mp/src/public/collisionutils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1475,12 +1475,12 @@ bool IntersectRayWithOBB( const Ray_t &ray, const matrix3x4_t &matOBBToWorld,
Collision_ClearTrace( ray.m_Start + ray.m_StartOffset, ray.m_Delta, pTrace );

// Compute a bounding sphere around the bloated OBB
Vector vecOBBExtents;
VectorAdd( vecOBBMins, vecOBBMaxs, vecOBBExtents );
vecOBBExtents *= 0.5f;

Vector vecOBBCenter;
VectorAdd( vecOBBMins, vecOBBMaxs, vecOBBCenter );
vecOBBCenter *= 0.5f;
vecOBBCenter.x += matOBBToWorld[0][3];
vecOBBCenter.y += matOBBToWorld[1][3];
vecOBBCenter.z += matOBBToWorld[2][3];
VectorTransform( vecOBBExtents, matOBBToWorld, vecOBBCenter );

Vector vecOBBHalfDiagonal;
VectorSubtract( vecOBBMaxs, vecOBBMins, vecOBBHalfDiagonal );
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10 changes: 5 additions & 5 deletions sp/src/public/collisionutils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1475,12 +1475,12 @@ bool IntersectRayWithOBB( const Ray_t &ray, const matrix3x4_t &matOBBToWorld,
Collision_ClearTrace( ray.m_Start + ray.m_StartOffset, ray.m_Delta, pTrace );

// Compute a bounding sphere around the bloated OBB
Vector vecOBBExtents;
VectorAdd( vecOBBMins, vecOBBMaxs, vecOBBExtents );
vecOBBExtents *= 0.5f;

Vector vecOBBCenter;
VectorAdd( vecOBBMins, vecOBBMaxs, vecOBBCenter );
vecOBBCenter *= 0.5f;
vecOBBCenter.x += matOBBToWorld[0][3];
vecOBBCenter.y += matOBBToWorld[1][3];
vecOBBCenter.z += matOBBToWorld[2][3];
VectorTransform( vecOBBExtents, matOBBToWorld, vecOBBCenter );

Vector vecOBBHalfDiagonal;
VectorSubtract( vecOBBMaxs, vecOBBMins, vecOBBHalfDiagonal );
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