void float3x4::ScaleRow(int r, float scalar)
{
#ifdef MATH_SIMD
row[r] = muls_ps(row[r], scalar);
#else
Row(r) *= scalar;
#endif
}
Quat Quat::operator *(float scalar) const
{
#ifdef MATH_AUTOMATIC_SSE
return muls_ps(q, scalar);
#else
return Quat(x * scalar, y * scalar, z * scalar, w * scalar);
#endif
}
void AABBTransformAsAABB_SIMD(AABB &aabb, const float4x4 &m)
{
simd4f minPt = aabb.minPoint;
simd4f maxPt = aabb.maxPoint;
simd4f centerPoint = muls_ps(add_ps(minPt, maxPt), 0.5f);
simd4f newCenter = mat4x4_mul_vec4(m.row, centerPoint);
simd4f halfSize = sub_ps(centerPoint, minPt);
simd4f x = abs_ps(mul_ps(m.row[0], halfSize));
simd4f y = abs_ps(mul_ps(m.row[1], halfSize));
simd4f z = abs_ps(mul_ps(m.row[2], halfSize));
simd4f w = zero_ps();
simd4f newDir = hadd4_ps(x, y, z, w);
aabb.minPoint = sub_ps(newCenter, newDir);
aabb.maxPoint = add_ps(newCenter, newDir);
}
