Copyright © 2015 Curt Hill Typing Your Commands Console, Command Line and Movies.

Copyright © 2015 Curt Hill

Typing Your Commands

Console, Command Line and Movies

Introduction

• We need to consider a couple of topics Console commands

• Command Line parameters • Recording video


Console Commands

• These are also known as exec commands

• These can also be started from within UnrealScript

• The console is a command line interface

• From there we may enter commands not necessarily having to do with game play


Opening the Console

• The console may be opened or closed by the tilde (~) key

• This also shuts the console• Game play is not suspended when

in console– Should only be done when nothing

else is going on


Screen Shot


Commands• Commands may be categorized thus:

– General– Statistics– Display– Rendering– Physics– Movie Capture– Others

• A reference is at:https://udn.epicgames.com/Three/ConsoleCommands.html


General

• Quit or Exit – Ends the game

• Open – Starts a new level– Does not work in PIE– The level to start on may be specified

on command line


Statistics

• Stat fps– Shows the time elapsed and frames

per second that it is rendering

• Stat game• See next screen


Game and FPS


Others

• Mem – Will show memory allocation

• Viewmode – the same parameters as in editor– LightingOnly– DetailLighting– Wireframe


Demos• DEMOREC - Record a demo for

later playback. • DEMOSTOP - Stop demo playback\

recording. • DEMOPLAY - Play a previously

recorded demo. • Demos are stored in UDKGame\

Demos– Only in the game not pie– Do no have the same view as play– Only playable in UDK


Screen Shot

• SHOT – Takes a screenshot at the current screen resolution.

• Occurs immediately, so console version is sort of pointless

• Should use an exec command to do during game play


Movie Capture• Startmoviecapture• Stopmoviecapture• Captured movies end up in:

…\UDKGame\MovieCaptures• They are not really movies but .AVI

files– There is no sound

• The bad news about .AVIs is there is no compression– 10 seconds per gigabyte for full

resolution


Command Line

• There are several commands that you can enter via command line

• Recall that we set up the original icon with:udk.exe editor –log

• If the game is to be played with a specific level that should be the first parameter instead of the editor

• There are other parameters as well


Where?

• In a Windows environment the command line occurs in several places:– In a DOS box– In a .BAT file– In the target item of the properties of

a desktop icon– Menu properties


Right Click Icon Properties


The Program• The first part of the command line is

the executable:– UDK.EXE– The .exe is optional

• This is followed by a space and the world that you want to execute– This has a .UDK extension, which is

optional

• Most command line parameters follow and are separated by blacks

• That is not the case for a fewCopyright © 2015 Curt Hill

Specifics• There are several parameters that must

follow the level, separated by a question– Game=GameInfo class– Class=Pawn class

• Both of these prefixed by the directory of your mods

• These are attached to the .UDK file and separated by a ?UDK.exe demo2_c2.udk?game=CurtMod.CurtGameInfo?class=CurtMod.CurtPawn


Command Line Parameters

• You may set the size of the window, that is its resolution with:– SetX=xxx– SetY=yyy

• Frames per second is:– FPS=xx– 30 is needed for video

• Benchmark is needed to process each frame so no skips occur


Making a Movie

• To do properly needs hardware capture or good software capture

• With just UDK and a movie maker a no-audio version can be made

• This requires several steps:– Record– Convert


Record• Start UDK with the following

command line parameters:– Level resx resy benchmark fps– Such as:

demo2_c2 resX=1024 resY=530 benchmark fps=30

• Enter console– StartMovieCapture

• Do what is to be demonstrated• Console

– StopMovieCapture and Quit


Convert

• Load up Pinnacle Studio• Import the .AVI• Clip off the beginning and ending

console• Create a file

– Use the MPEG-1 encoding


Result


Finally

• We will try a demo now• Lets make a movie


Date post:	02-Jan-2016
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Copyright © 2015 Curt Hill Typing Your Commands Console, Command Line and Movies.

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