How do I import maps into Hammer?

[CokedBadger]

What I'm doing is copy and pasting the gma file in the addons folder, then I go to the Documents folder where all the Hammer maps I've created are located, I then keep copying the file and changing it from .gma to the following:

.vmf
.vmx
.lin
.bsp

I create a new one each time and change the copy to the next type of file that's needed in order for it to work, but when I try to load it into Hammer it says "Loading Chunks" but it stays at 5% and Windows says it's not responding

[Kazooie]

You can't just change the file extension like that. What you will need to do is extract the contents of the .gma to get the .bsp. You can do that by using this:

https://steamcommunity.com/sharedfiles/filedetails/?id=431638110

But just having the .bsp won't be enough. If you really want to import the map into hammer you will have to convert this .bsp into a .vmf. You can do that by using a tool like this:

https://developer.valvesoftware.com/wiki/BSPSource

I do feel the need to warn you that this tool isn't perfect, you may have to mess with it for the textures to import correctly. Compiling the map with the right settings to look just like the original can be very difficult if it's a complicated map. This process would work, but you may have some difficulty with it.

[CokedBadger]

Originally posted by Kazooie:

You can't just change the file extension like that. What you will need to do is extract the contents of the .gma to get the .bsp. You can do that by using this:

https://steamcommunity.com/sharedfiles/filedetails/?id=431638110

But just having the .bsp won't be enough. If you really want to import the map into hammer you will have to convert this .bsp into a .vmf. You can do that by using a tool like this:

https://developer.valvesoftware.com/wiki/BSPSource

I do feel the need to warn you that this tool isn't perfect, you may have to mess with it for the textures to import correctly. Compiling the map with the right settings to look just like the original can be very difficult if it's a complicated map. This process would work, but you may have some difficulty with it.

The one I want to edit is gm_cascade, the reason why is cause it has those textures that say stuff like "Reflection: 50%" or "Texture_2" right on the texture itself, but the creator never got around to fixing it

[CokedBadger]

Yeah but how do I import it into HAMMER

NOT Source Filmmaker

[Kazooie]

Originally posted by Beans On Butter:

Yeah but how do I import it into HAMMER

NOT Source Filmmaker

Don't worry about the source filmmaker part, the first part of that guide shows you how to extract a .gma which has what you need.

What you need to understand is there's no way to directly "import" a map into hammer. Rather, you have to decompile the .bsp into a .vmf then open that .vmf like you would for any other map.

[CokedBadger]

Originally posted by Kazooie:

Originally posted by Beans On Butter:

Yeah but how do I import it into HAMMER

NOT Source Filmmaker

Don't worry about the source filmmaker part, the first part of that guide shows you how to extract a .gma which has what you need.

What you need to understand is there's no way to directly "import" a map into hammer. Rather, you have to decompile the .bsp into a .vmf then open that .vmf like you would for any other map.

Then how do I decompile the file?

[Cryptic Runner]

decompile the map to a vmf then open it

but i'd recommend making your own map because you'll most likely have lots of issues

[Kazooie]

Originally posted by Cubic Ralsei:

but i'd recommend making your own map because you'll most likely have lots of issues

Indeed.