message: Fix Quad light -- side of emission
diff: @@ -110,8 +110,8 @@ Light_EvalRes QuadLight_eval(const uniform Light* uniform super,
  //! Set the parameters of an ispc-side QuadLight object
  export void QuadLight_set(void* uniform super,
  const uniform vec3f& position,
  - const uniform vec3f& edge2,
  const uniform vec3f& edge1,
  + const uniform vec3f& edge2,
  const uniform vec3f& radiance)
  {
  uniform QuadLight* uniform self = (uniform QuadLight* uniform)super;
  