Is there any way to enable the depth of field?

Black Mesa Archive Help!
#1

As the title says: is there any way to enable the depth of field or ambient occlusion?
I’ve been wondering since I saw this screenshot

But I couldn’t figure out how2.

I tried with the nvidia panel but says that the ambient occlusion isn’t supported by the game, tried with NvidiaInspector to activate it but doesn’t work. Latest version of the driver in case you were wondering.

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.