Function Kataglyphis::transformAABB

Function Documentation

AABB Kataglyphis::transformAABB(const glm::mat4 &model, const AABB &boxObjectSpace)

Transforms an object-space AABB by a model matrix and returns the AABB of the result.

The transformed box is NOT the transform of the corners’ min/max: under rotation, an axis-aligned box maps to an oriented box whose axis-aligned bound is larger. Uses the Arvo center/extent form, which is exact for AFFINE transforms (bottom row [0 0 0 1] - every caller supplies a model matrix, never a projection) and never under-estimates - important, because an under-estimated bound culls visible geometry.