Yeah, the reflections thing is a known issue I think (I can reproduce it on my machine). Technically, the realtime reflections are working (you can see it reflecting the world in that video), it's just not reflecting entities for some reason. No idea what that's about.

Also (and I'm pointing this out because of the title of your thread), Hammer is completely unrelated to the Source engine. Hammer sucks. It always has and frankly, it always will; if it were changed enough to not suck, it would be so different that you couldn't call it Hammer anymore (I say this as a person who has been using Hammer on and off for over 10 years, so it's not that I'm unfamiliar with the program).

The coolest thing about the new engine is that there are no shadow maps and with dynamic lighting everything looks a lot better (and ofc it takes less to compile).

引用自 eruul2012：

The coolest thing about the new engine is that there are no shadow maps and with dynamic lighting everything looks a lot better (and ofc it takes less to compile).

There are shadow maps in CSGO...
VRAD still compiles lighting into the bsp.

引用自 Stinger21：

There are shadow maps in CSGO...
VRAD still compiles lighting into the bsp.

It does? Well it definately fooled me becuase they look exactly the same as the dynamic shadows.

It does lightmaps (VRAD) and shadow maps (dynamic shadows).

After much mucking about (a new VPK format, who knew?) I've managed to look directly at the water materials. They have $reflectonlymarkedentities enabled, which means that you'll have to enable the "Render in Fast Reflections" property of dynamic entities before they will show up.

http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=96353222

Edit: you could also customise the material to disable $reflectonlymarkedentities...if you can extract it!

Edit: now you can extract it! https://developer.valvesoftware.com/wiki/VPK_File_Format/vpk2_reader.py