Unreal engine, UDK size "feeling" ?

The default UDK scale changed about a year ago. In the Unreal gametype, it is 96. Otherwise, it is closer to 120 in UDKGame and SimpleGame.

I've been conducting some experiments of my own regarding your height in UDK and your height in the real world.

So to start with I've found that if the Default Game Type (in menu View->World Properties->Game Type-> ) is set to UDKGame or utgame, then when you enter your game (and you are standing up in the real world) and look down at the ground you feel like you are sitting in a chair regarding how far away the floor looks compared to how far away it looks if you temporarily remove the Rift from your head whilst looking down.

To remedy this I decided to set a few values. Firstly I set the Default Game Type to None. Then I measured how high my eyes are from the floor in the real world when I am standing up. This value was 165cm. Then I changed values in SimplePawn.uc ( found in (<UDK-install-directory>\Development\Src\UDKBase\classes) as follows:

in the

 event TickSpecial( float DeltaTime) { ... 

section I set

 bAllowBob = false 

and I set

GroundSpeed = 300; 

and

 AccelRate = 60; 

and after trying a few values I changed in

 defaultproperties {  
 .
 .
 .
 BaseEyeHeight = 280.0;
 EyeHeight=280.0; 

The table that my computer is on is 76cm from the floor. So I set up a table top in my scene and changed its height from the virtual floor until it felt it was corresponding to the height of the table in my room in the real world. I measured in UDK the height of the table and it came to 255 units. This makes 1cm equal to 2.96 UDK units.

Has anyone else come up with a measurement in UDK units for 1cm ? I'm going to recreate my real world room next to see how that feels in UDK world.

Interesting post Medrift.
I haven't tried that kind or real life comparison.
I should try that.

Regarding UDK I think I am going to lose +2 year I invested in the engine and switch to Unity...
Nothing has been done on Epic and Oculus side to have a full real UDK version, they are all focused on unreal engine 4...
UDK users that want to do something other than a very regular fps are pretty much screwed.
Today UDK is just a scrap and is an weak incomplete version of the real UDK
Just keep that in mind. ^_^

"OlivierJT" wrote:
Interesting post Medrift.
I haven't tried that kind or real life comparison.
I should try that.

Regarding UDK I think I am going to lose +2 year I invested in the engine and switch to Unity...
Nothing has been done on Epic and Oculus side to have a full real UDK version, they are all focused on unreal engine 4...
UDK users that want to do something other than a very regular fps are pretty much screwed.
Today UDK is just a scrap and is an weak incomplete version of the real UDK
Just keep that in mind. ^_^

I agree that we really need support, but since the consumer version of the Rift is still a ways away, I'll put some hope in Oculus and Epic to get some fixes in there before-hand. I use Unity a lot, but I just can't see the game I want to make working on it, the pipeline is just too inefficient. I do have a cartoony game that I'll be adapting to the Rift with Unity though.

what i do is make a model of my room with a door way, then check out the eyeheights etc and the lintel levels in the real world and then adjust the scaling of the virtual model or player eyeheight and compare the real and virtual versions. characters that come with UDK are massively wide....

I can get to the correct size with the console command "changesize .6" - this gives me the feeling that I'm looking eye to eye with a character. Problem is that I can't find how to make this change permanent. Can someone help?

well change size is a console command right ?

All console command are temporary. I am guessing you are new to UDK.

So, to change your character size you have to change the code of it.
It's pretty easy.
in UDK a playable character is called a "pawn"

So look for it's class and in the default properties you should have an area :

        Begin Object class=SkeletalMeshComponent Name=xxx
                SkeletalMesh=xxx'
                AnimSets(0)=xxx
                AnimTreeTemplate=.xxx

                Scale=1
                BlockRigidBody=true;
                CollideActors=true;
                BlockZeroExtent=true;
                HiddenGame=FALSE
                HiddenEditor=FALSE
        End Object

Depending on you what your game is based on (UDK, UT,...)
UTPawn.uc UDKpawn.uc

xxx is your settings or UDK settings (path, name etc...) You should know this already. (?)
And change the Scale to your desired 0.6
Save.
Recompile and your done.

Good ?

in the udk-oculus docs, it says it assumes you are using a scale of 2 UU = 1''. Is this wrong?

Default UDK:
1 Unreal Unit = 2cm.

There is no harm in switching to 1UU = 1cm, which is what a most licensees do.

I'm not sure if you are aware of this or not but if you go to the world properties and change the game type it has an effect on the scale of how tall you feel/look.

I like to use utgame, then the 96 units equals roughly 6 feet works correctly.

Hope this helps!