source engine create transform matrix

Vector3 min, max, origin, angles;

pEntity->GetRenderBounds ( min, max );

matrix3x4_t trans;

origin = pEntity->GetAbsOrigin ();
angles = pEntity->GetAbsAngles ();

trans[0][3] = origin[0];
trans[1][3] = origin[1];
trans[2][3] = origin[2];

AngleMatrix ( angles, trans );