Explosions can damage non-exposed blocks

Explosions, if they are defined with explosion radius bigger that the distance to the wall in question, usually damage blocks in the second raw. The damage is far less than that for the first raw, but not null.

 

I have the impression that the filling of the volume, expressed in the block definitions as "opacity", has no influence on that ration of damage (first to second raw). Maybe the Funpimps could make this dependent on the opacity?

42 minutes ago, White-Gandalf said:

Explosions, if they are defined with explosion radius bigger that the distance to the wall in question, usually damage blocks in the second raw. The damage is far less than that for the first raw, but not null.

But I found the non-exposed blocks only take damage if they are around edges/corners. If i repeat the same experiment, but make it completely out of steel, and then cover that entire cube on the outside with wood frame blocks, the explosions do no damage to the wood frame blocks, even though the wood frame blocks are technically on the 2nd row

 

Here's my test where i covered the steel box with wood frame, the frames take no dmg in the end. I removed some frames near the end of the video to show that the steel block in the edge still takes damage

https://imgur.com/a/i4bdGLD