[NZ_JOHN]

In the Cabview File (GP38.cvf)
Wot are the 3 items marked ==================<< mean
I see in some file they are in as ""
Is it a second cab? Thanks

Tr_CabViewFile (
CabViewType ( 2 )
CabViewFile ( GP38Frnt.ace )
CabViewWindow ( 43 0 597 412 )
CabViewWindowFile ( AcWndFrn.ace ) ===========================<<<
Position ( 1 3.7 6 )
Direction ( 10 0 0 )
CabViewFile ( GP38Left.ace )
CabViewWindow ( 0 0 640 301 )
CabViewWindowFile ( AcWndLft.ace ) ===========================<<<
Position ( 1 3.7 6 )
Direction ( 10 -77.35 0 )
CabViewFile ( GP38Right.ace )
CabViewWindow ( 20 0 589 430 )
CabViewWindowFile ( AcWndRgt.ace ) ===========================<<<
Position ( 1 3.7 6 )
Direction ( 10 84.22 0 )
EngineData ( GP38 )

[engmod]

Front window ace file
left window ace file
right window ace file

[NZ_JOHN]

engmod, on 09 March 2022 - 09:12 PM, said:

Front window ace file
left window ace file
right window ace file

Whats the dirrence betwee
GP38frnt.ace and AcWndFrn.ace
or
GP38Frnt Ace and ""

[engmod]

>GP38frnt.ace
A picture of the inside front of a gp38

AcWndFrn.ace
A test picture

I had a look at the files with tgatool2a.exe

[darwins]

You can leave those lines blank.

They were used by early versions of MSTS. You had to specify where the transparency was going to be in order to save computer graphics power on older computers.

This was the purpose of CabViewWindow ( 20 0 589 430 ) with which they work.

They are not needed in ORTS. I have just replaced

CabViewFile ( "../../MT_Common.Cabs/Class44cab/Front_1024.ace" )
CabViewWindow ( 0 0 640 480 )
CabViewWindowFile ( ../../MT_Common.Cabs/Class44cab/Front_1024.ace )
Position ( -0.9 2.9 7.7 )
Direction ( 8 0 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/left.ace" )
CabViewWindow ( 0 0 640 480 )
CabViewWindowFile ( "" )
Position ( -1 2.8 6.2 )
Direction ( 0 -45 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/right.ace" )
CabViewWindow ( 0 0 640 480 )
CabViewWindowFile ( "" )
Position ( 0 2.9 6.2 )
Direction ( 2 80 0 )

with

CabViewFile ( "../../MT_Common.Cabs/Class44cab/Front_1024.ace" )
Position ( -0.9 2.9 7.7 )
Direction ( 8 0 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/left.ace" )
Position ( -1 2.8 6.2 )
Direction ( 0 -45 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/right.ace" )
Position ( 0 2.9 6.2 )
Direction ( 2 80 0 )

and everything still works fine.

[NZ_JOHN]

darwins, on 10 March 2022 - 02:58 AM, said:

You can leave those lines blank.

They were used by early versions of MSTS. You had to specify where the transparency was going to be in order to save computer graphics power on older computers.

This was the purpose of CabViewWindow ( 20 0 589 430 ) with which they work.

They are not needed in ORTS. I have just replaced

CabViewFile ( "../../MT_Common.Cabs/Class44cab/Front_1024.ace" )
CabViewWindow ( 0 0 640 480 )
CabViewWindowFile ( ../../MT_Common.Cabs/Class44cab/Front_1024.ace )
Position ( -0.9 2.9 7.7 )
Direction ( 8 0 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/left.ace" )
CabViewWindow ( 0 0 640 480 )
CabViewWindowFile ( "" )
Position ( -1 2.8 6.2 )
Direction ( 0 -45 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/right.ace" )
CabViewWindow ( 0 0 640 480 )
CabViewWindowFile ( "" )
Position ( 0 2.9 6.2 )
Direction ( 2 80 0 )

with

CabViewFile ( "../../MT_Common.Cabs/Class44cab/Front_1024.ace" )
Position ( -0.9 2.9 7.7 )
Direction ( 8 0 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/left.ace" )
Position ( -1 2.8 6.2 )
Direction ( 0 -45 0 )
CabViewFile ( "../../MT_Common.Cabs/Class44cab/right.ace" )
Position ( 0 2.9 6.2 )
Direction ( 2 80 0 )

and everything still works fine.

Thanks for that, I have removed the redundant lines

[Weter]

Hello.
Little addition:
Besides that reason (shortening of screen area, where 3d-rendering must take place) which was for decreasing computing demands,
I've read somewhere, that it was intended to implement weather effects, like snowflakes or raindrops on windshields, as well as wipers work, using those window masks.