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Hi

I am keen to understand how the file size works with 3D Train Studio so that I might adjust my current layout in order to reduce lag. Until now my system has coped but the file size is now over 2.9Gb and as I continue to "paint" the scenery it is beginning to slow. I have asked this question of the manufacturer (info@3d-modellbahn.com) but have not received any answer. I know my layout is big, 12000 x 5000 and there are many 3d elements on this but if I can understand how the file is made up then it might help me to modify things in order to finish with a smooth flowing layout. Where I struggle to understand the file size thing is as follows: If I select a new board of a size 6000 x 2500, put 10 pieces of track on that board and save it the file size is greater than my original layout. I have already taken advice from other members on another matter and received invaluable advice with regard to creating different layers in order to gain more "grunt" when working. I have spoken to my computer manufacturer to see if my graphics card/PSU need to be increased but have been told that the present one should cope easily. So I am left to ask all you knowledgeable techies out there if you can help me to understand this whole file size thing with 3D design.

Cheers 

Pete

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Hi Pete

File size is not really what takes the grunt out of your rig. It is the number of visible objects but also the number of objects as such. This all is computed in your RAM, the bottleneck of a system. Try minimizing the number of objects by combining larger sections of track, made up of multiple pieces into one single spline model. For better performance during construction of a large layout, the use of layers is practical anyway to sort things, but more importantly to turn layers off (switching invisible) to reduce the number of items the graphic card has to display. In V4 I had once a performance problem because of issues in the EM, once they were cleared performance was normal again. 

Cheers

Tom

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Hi Tom

You amaze me. Is there anything you don't know?

I have already gone through and followed your advice regarding the water, roads and layers but have been reluctant to do the same with the rail tracks until I had a better understanding of variables. I have tried, in vain I might add, to emulate the example that you gave me but each time I have been unable to produce the list of variables that you had, so for now I have been concentrating on scenery. As part of the layers produced I have made one for hidden trains which has removed all but 4, one on each of the four main lines. All I did was simply highlight the full train, lift it from the track and place it in that particular layer. By doing so I hoped to a) get to grips with variables without having to remove the basic programs that I had created, just in case I botch up and b) rationalise the tracks one by one. However until I master the basics of variables I will remain in a state of limbo.

As for switching to invisible. I assume you mean highlight the 'eye' symbol at the right of each layer. If that is correct then I have already done that for each of the 11 layers not in use.

Anyway thanks once again for the advice as I have said before the two feet first approach sometimes works but you can't beat the more realistic approach with the help of someone so knowledgeable. I am for ever in your debt. Many thanks.

Cheers 

Pete

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vor 6 Stunden schrieb 220hotwheels:

As part of the layers produced I have made one for hidden trains which has removed all but 4, one on each of the four main lines. All I did was simply highlight the full train, lift it from the track and place it in that particular layer.

 

As for switching to invisible. I assume you mean highlight the 'eye' symbol at the right of each layer. If that is correct then I have already done that for each of the 11 layers not in use.

3

Hi Pete

This doesn't sound like my description on how to sort objects into layers at all. There is only activating (highlighting) of objects and changing their layer assignment by clicking on the layer symbol and selecting the correct layer in the dropdown list. The layer symbol is that coloured fat line in the top of the object properties window.

Yes, you turn layers on/off by clicking on the eye symbol. The eye changes it'st colour according to the state of visibility.

Just to make sure we're both talking about the same thing:

The layers window is not turned on by default.  To turn it on go to View....

Layer0.thumb.JPG.2e67df09b5d960f89fb0a46941d5d942.JPG

...and tic the checkmark to have it permanently on the screen.

layer1.thumb.JPG.f1dc922537ea47ba983b45d90e902bc5.JPG

Don't worry, if you don't need it you can also just push it with the mouse by click and hold to the side of the screen.

Here I turned the default layer of your layout off.

layer2.thumb.JPG.46add6577a4b35d3d26fac2b96855448.JPG

Here I clicked on the layer icon of your petrol station. The highlighted layer is the one it is currently. To change this just select and click on one of the others available.

laver3.thumb.JPG.94790dea578c00304fb76ee6e008d31e.JPG

Cheers

Tom

 

 

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Hi Tom

I hope it's just a case of my description has not been too clear regarding my efforts re: layers so I have taken the liberty to attach the latest efforts, albeit it I still have some work to do sorting some things out and improving on some of my latest scenery attempts.

I hope I have got the layers thing right but if not then I am sure you will put me straight!!!!

Thanks once again for your invaluable tuition.

Cheers

Pete

Fairmont V5.mbp

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 Hi Pete

Nothing to put straight(y), all well sorted. I noticed your port is made up of a number of panels. Looks like they could be substituted by some bigger combination panels. Just generally aim to keep numbers low.

Here is how to condense tracks:

 

pete1.thumb.JPG.c00bd1ae9a806871479e3972c61666a5.JPG

That's at the turntable, pretty much centre southside of the layout. As you can see I replaced the oddly shaped track you created using the flexible bending function.

I did this for 2 reasons. A.) it really looked oddly to me (flexible bending hardly achieves "close to real" results) B.) Flexible bent tracks do not reveal their credentials (straights and bends do), thus they cannot get incorporated via the 3D model editor into a large segment made up of several single-track pieces. One workaround here is to replace a flexible bent situation with a few or several customized straights and bends. These can, later on, get incorporated in the script of a combination piece. 

pete3.thumb.JPG.8f67249f9f60867c6b4173eb4c6cfda2.JPG

So first you check and record (either in a calculator or in writing) the different length and radiuses/angles of straight and curved tracks. The activated piece here shows a length of 174 in the 3D model editor.

pete4.thumb.JPG.71a764d6d6c7d499d61937443dea6ab9.JPG

Here is the view of the new piece's credentials. It starts with the curve, I designed as a replacement for the flexible bent piece. The starting point in the diagram is always facing north from south, here it is already in the corner, because of the size of the whole track. Note that the angle of the curve (-31.42) is negative as is the other curves angle, too. Left turning curves in the editor are negative. Right turning curves are positive. The second position in the list is the first stretch of straight track to the next curve. Note: to add another line click the + icon, to remove a line click the - icon. You only can have up to 8 lines. So on your layout, you will still have plenty of tracks but they will be only about 15%-25% of the number of items you have now. Likewise with the roads.

pete2.thumb.JPG.571cf9c212bb4b47bc516261165700f1.JPG

As in this sample: the previous track consisted of 6 single pieces. The new one is just one, and could be way bigger because it required only 4 lines out of eight.

Hope this gets you going.

Cheers

Tom

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Hi Tom or should that be Yoda!!

I am pleased that I have got the layers thing right, now I'll have to get to grips with the track aspect. I've briefly looked over your recommendations which certainly make a lot of sense, albeit it will take me a bit of time to digest it fully and get into the rhythm of changes but it is brilliant to be given the starting point.

If I may i'll let you know how I get on.

Cheers

Pete

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Hi Pete

No worries..... Well, I can see that re-editing all your tracks will be quite a mission..... but also worthwhile under the aspect of aesthetics. I spotted many situations, where you used the flexible bending and the result doesn't look pretty or believable. That's why I emphasized trying to replace the "flexibents" with customised curves, to get more even radiuses for a generally smooth look.

Cheers

Tom 

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Hi Tom

How right you are on both counts. I've already made a start having now sorted the turntable/engine shed area so I think I have got the hang of what needs to be done. Already my file size has come down. albeit by only a small amount but by the time I have sorted all of the track and roads I might well be at an acceptable and more workable level again. I must admit I hadn't realised you could edit and add track as you have shown so many thanks again for that.

My plan is to complete a circular track at a time starting with what I deem to be track 1. As I complete each one I will rename every section with an abbreviated reference but one that is pertinent to that particular track so track 1 will get the abbreviation AT1-01 etc, track 2 will be BT2-01. Points and crossing will become AT1-P01 and level crossings AT1-LC01.

So here goes my spare time for the next few weeks is now allocated and I look forward to the challenge.

Cheers

Pete

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