previously worked, now there is no

Now does not give the desired results

I’m not entirely sure what your question is, but you should not be using EnvMapAmbientMethod with addMethod(). It’s an “ambient” method, and should thus be assigned to the ambientMethod property that you’re suggesting in your second option.

However, if you do want to use environment mapping after all lighting, you can do so by using the EnvMapMethod (not ambient) which should be added using the addMethod() property.

I meant that before the upgrade, the method can be added through the addMethod ().
After the upgrade, had to use a ambientMethod, but the present result is different from the old, so it seemed to me that it does work not correctly.

Now understood, thanks.