Simviation Forum - Bad export

Jul 9^th, 2008 at 5:35am

skyflirt Offline
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Hello

I have a problem when exporting my model for FS9 from Gmax. The problem visible in the interior (virtual cockpit) model. The pictures showing the altimeter's frame, the first (good) one is from Gmax and the second (bad) is in FS. As you can see the frame is a nice "circle" in Gmax, but it is "fragmented" in FS. I have the some problem with other parts also...

When I export the same gmax model for FSX (via FSX Plugin naturally) I have NOT this error. It could be the difference between FS9 and FSX graphical engine or is there any solution for it?

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Reply #1 - Jul 9^th, 2008 at 6:22am

Alrot Ex Member
I Love Simviation.

I think you should better made a gauge rather than make it in gmax ,I don't know what 's causing that damage ,

NO is not the the SAME general Graphics .Makemdl9 is a compilator that uses BGL code(FS9) , while Modeldef.xml using the rest of the plugins is a compilation under XML code(FSX)

I never seen before that issue ,maybe the piece is too small if it a gauge and inside the game doesn't renderize is well

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Reply #2 - Jul 9^th, 2008 at 6:43am

skyflirt Offline
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The frame of the altimeter is the part of the visual model, so it's not a gauge, it's just a 'simple' part.

I made a test : picked my model's interior in Gmax and exported it alone, so in FS it is displayed as exteriror model. In this case my gauge's frames displaying good, just as I see it in Gmax. It is a difference between rendering exteriro and interior models?!

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Reply #3 - Jul 9^th, 2008 at 1:10pm

Fr. Bill Offline
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This is an issue that has been cussed and discussed for years.

FS9's MakeMDL.exe has an exterior model resolution of 1mm. The interior model's resolution however is limited to 4mm.

What this means is that all vertices closer than 4mm are "collapsed" into an wrinkled mess, sort of like crumpled aluminum foil... Cry

FSX's XtoMDL.exe has the same 1mm resolution for both the exterior and interior parts of the model.

Bill
Gauge Programming - 3d Modeling Eaglesoft Development Group Intel Core 2 Quad Q6600-4GB DDR2 Crucial PC6400-800 GB SATA-ATI Radeon HD2400 Pro 256MB DX10 NOTE: Unless explicitly stated in the post, everything written by my hand is MY opinion. I do NOT speak for any company, real or imagined...

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Reply #4 - Jul 9^th, 2008 at 1:22pm

Gaspen Offline
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Shit

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Reply #5 - Jul 9^th, 2008 at 1:26pm

Fr. Bill Offline
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now I have GMax!
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Gaspen wrote on Jul 9^th, 2008 at 1:22pm:

Shit

Precisely... Wink

However, there does exist a tricky method whereby FS9's MakeMDL.exe limitation can be overcome, but...

...the method is quite complex to describe. Anyone wishing to learn details can do a forum search at http://www.aerodynamika.com/cgi-bin/yabb/YaBB.cgi

Bill
Gauge Programming - 3d Modeling Eaglesoft Development Group Intel Core 2 Quad Q6600-4GB DDR2 Crucial PC6400-800 GB SATA-ATI Radeon HD2400 Pro 256MB DX10 NOTE: Unless explicitly stated in the post, everything written by my hand is MY opinion. I do NOT speak for any company, real or imagined...

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Reply #6 - Jul 9^th, 2008 at 4:26pm

Travis Offline
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Cannot find REALITY.SYS.
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What's the diameter of the gauge, the diameter of the piece around the gauge, and the number of polys in that piece? Also, how did you create it? I have a method that has never failed for me in creating things of just this type, but I need to know what you have already done to describe the method.

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Reply #7 - Jul 9^th, 2008 at 5:11pm

skyflirt Offline
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The face of the gau and the piece around the gau is one part, I signed it with red on the pics. The whole diameter is about 8cm (~3 inches) and the part counts 65 polys. I created it from a simple 32-sided cylinder

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Reply #8 - Jul 10^th, 2008 at 12:46am

Travis Offline
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Cannot find REALITY.SYS.
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Try this:

Measure one of the beveled edges' segment's length. Now create a cylinder that has a diameter of (say) .125 cm, 8 sides and a length 32 times the length of the beveled edge. You now have a cylinder that is the same height as the beveled parts are around.

Place a bend modifier on the cylinder and set it to 180 degrees. This will give you a circle that is the exact same size as the beveled edges. Now center the midpoint on the object and delete one half (back half) of the cylinder's polys.

Move the object to the exact spot that the beveled edges are and delete the beveled edges. Now export and see if your issue isn't solved.

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Reply #9 - Jul 10^th, 2008 at 3:46am

skyflirt Offline
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Thanks, I take a try.

Today I measured the part : there's no vertices within 4mm, the smallest distance between the vertices is above 6mm...strange Shocked

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Reply #10 - Jul 10^th, 2008 at 4:58am

skyflirt Offline
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Posts: 69

I tried your method,Locke, but I have the similar result Sad

This time I noticed a new thing : I made that circle with Bend modifier and cleared all smoothing from it, this way I can see what happens with the poligons in FS. I have to say the problem is not with the welded points, but the accuracy or inaccuracy of the scene. See the pics : the vertices are not laying on an accurate circle, they give an abnormal 'line' instead.

Is there any setting for accuracy in FS/MakeMDL/Gmax?

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