Files
XCEngine/engine/src/Core/Math/Transform.cpp
ssdfasd d575532966 docs: update TEST_SPEC.md and README.md to reflect new directory structure
- TEST_SPEC.md: Updated test directory structure to reflect Core/Asset,
  Core/IO, and Resources/<Type> subdirectories
- TEST_SPEC.md: Updated module names and test counts (852 total)
- TEST_SPEC.md: Updated build commands for new Resources subdirectories
- README.md: Updated engine structure with Core/Asset/ and Core/IO/
- README.md: Updated Resources section with layered architecture
- README.md: Updated test coverage table with accurate counts
2026-03-24 16:14:05 +08:00

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1.2 KiB
C++

#include "Core/Math/Transform.h"
#include "Core/Math/Matrix4.h"
namespace XCEngine {
namespace Math {
Matrix4 Transform::ToMatrix() const {
return Matrix4x4::TRS(position, rotation, scale);
}
Transform Transform::Inverse() const {
Transform result;
result.rotation = rotation.Inverse();
result.scale = Vector3::One() / scale;
result.position = result.rotation * (Vector3::Zero() - position) * result.scale;
return result;
}
Transform Transform::operator*(const Transform& other) const {
Transform result;
result.position = position + rotation * (scale * other.position);
result.rotation = rotation * other.rotation;
result.scale = scale * other.scale;
return result;
}
Vector3 Transform::TransformPoint(const Vector3& point) const {
return position + rotation * (scale * point);
}
Vector3 Transform::TransformDirection(const Vector3& direction) const {
return rotation * (scale * direction);
}
Vector3 Transform::InverseTransformPoint(const Vector3& point) const {
return (rotation.Inverse() * (point - position)) / scale;
}
Vector3 Transform::InverseTransformDirection(const Vector3& direction) const {
return rotation.Inverse() * direction / scale;
}
} // namespace Math
} // namespace XCEngine