How to save the backbuffer to file?

[ccss]

I need to create a series of still images from inside my game project.

I can't seemed to find any api commands (lua) that would allow me to do this.

 

There is the Context.Screenshot() function, but calling this function will immediately end the game and open up a steam page.

 

How can I grab a screen rendering and save it to disk via Lua?

 

Thanks

[ccss]

Anyone?? 

Hello?

Is there no way to Grab the screen/ backbuffer from lua and save to a file?

 

 

[macklebee]

On 5/19/2017 at 5:29 PM, ccss said:

I need to create a series of still images from inside my game project.

I can't seemed to find any api commands (lua) that would allow me to do this.

There is the Context.Screenshot() function, but calling this function will immediately end the game and open up a steam page.

How can I grab a screen rendering and save it to disk via Lua?Thanks

Just perform the context:Screenshot() based on a key hit - because it does not immediately end a game.

if window:KeyHit(Key.P) then
    context:Screenshot("c:/screenshots/image_"..Time:GetCurrent()..".tga")
end

Run your game's executable and not through the editor if you don't want a steam pics page to open after the game closes - of course, do not initialize steam in your game either...

[ccss]

Thanks for the reply!  Running the exported game fixed my issue.  
I removed all the calls to steam from my main script, but it still shows up. Not sure where it's coming from.

[macklebee]

If you are running it through the editor then steam will be initialized even without it in the main script, and the steam pics page will show up since the LE editor is a steam "game".

[ccss]

Thanks. That makes sense. 

In case anyone else has this issue in the future. I'll note that my game was closing because of a quiet exception from calling the Screenshot function at the end of the render function. By moving the call to Screenshot into PostRender. It fixed the issue.

Thanks again for the help!