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Huge file size BGL! Help?

JGplanes

JGplanes

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unitedstates
I have compiled photoscenery for a small airport (1, 5000' runway). The original file is 160mb at 1' resolution.

I have two questions...

1. My output is set to LOD "auto" and it compiles at about LOD23 anything less looks very blurry on the ground, but the resample exports 2500 tiles and the BGL output is around 150MB. Any suggesstions on how to keep the detail (it looks beautiful) without the huge file size.

2. When you load up a flight or refresh the scenery it looks beautiful over the whole airport, but when your landing or on approach the scenery seems blurry, and doesn't load fast enough. Is there a way to prevent this from happening? Possibly display the High Res tiles farther out from the airport. eg...Substitute the hi LOD files for the low at a distance?

Thanks,

John
 
It would be interesting to see your INF file -- the files sizes don't make sense, my output is normally around 15 - 20% the size of the input.
You can compress the output -- see the sample INF files in the SDK.
Use CompressionQuality =
Play around with values between 70% and 90% to get a good compromise between size and quality.

Have you had a good look at your settings? You need to have your Texture resolution to at least 1m, and your Level of detail radius to the highest setting.
 
Hi John,

With the compression settings you should be able to optimize the file size a bit as toprob already said. But a bigger files is not always bad, as much compression means more CPU power is needed to uncompress again by the scenery engine.

And I don't think a 150 MB file is big, I once did a test airport that gave 6 GB of BGL files :).
 
150mb on 1" per pixel imagery is quite good really. You're talking about 2.5cm per pixel...

I think that is overkill though, you may want to set your max auto LOD to 7cm settings...

I'm guessing that is about 2 LOD lower than what it's rendering at.

(edit) yeah looking at it you should set your max autolod to 19. You're currently rendering the imagery at 5mm (millimeters) per pixel. FSX can only display up to LOD19 in sim (aka 7cm per pixel)...
 
Last edited:
I think it says 1' and not 1''. So about 30 cm resolution that would be.
 
Thanks Arno, sorry read that wrong...

Yeah the LOD setting max should be set to a more appropriate level, LOD23 is way to high for it to be rendered at...
 
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