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Calculating Oriented Bounding Boxes (OBB) using Entity Rotation Quaternions (Part 3)

SecurityAudit
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4y ago · May 4, 2022 4:44 PM
#1
How to transform local AABB min/max bounds into Oriented Bounding Boxes using entity rotation quaternions in 3D space.
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NeighborSpy
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4y ago · May 4, 2022 8:08 PM
#2
Quaternions represent 3D rotation without gimbal lock. Multiplying each of the 8 local vertices by the rotation quaternion and adding world origin generates exact 3D corners.
NeighborSpy · Secret Neighbor & Unity Netcode
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VectorByte
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4y ago · May 4, 2022 10:08 PM
#3
Projecting the 8 corners with WorldToScreen and connecting 12 edges creates an authentic 3D box that tilts with slopes and stairs.
VectorByte | DirectX 11/12 Hooking & ImGui Overlays
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Math is the language of game engines.