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LOD Photoscenery

Shaun

Shaun

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I'd like the photoscenery to look crisper at a distance, is there anyway to force the a higher LOD to appear?

I know I could do LOD=9,12,

But what are the problems associated with removing the lower LODs? Will it significantly affect performance?
 
Removing the lower LODs will just make the photoreal give way to landclass textures at a distance that's clearly noticeable. Tried that once myself, lol.
 
Jim,

Just to clarify: does it also mean that LOD=Auto makes sure that lower LODs will be added to output BGL even if the source image is taken at particular (higher) LOD resolution only?

IOW, can I add mipmaps to the photo image with imagetool before resample? Isn't LOD=Auto in resample.exe enough?
Thanks!
 
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No don't add mips to your source, they have nothing to do with photoreal, you'd only use them with model textures. Resample will decide which LODs to generate, not sure what the criteria is but LOD=Auto always seems to work as long as resample is generating an LOD13 or above from your imagery (LOD12 or below will roll away from you as you fly towards it exposing landclass textures, in that case you can force an LOD13 with LOD=Auto,13 to cure that problem). You can open your photoreal in TMFViewer and then do View > Level of detail and see which LODs were generated, the ones that aren't grayed out will be what you ended up with. Usually I think LOD=Auto on 30cm imagery will give you LODs 6 through 17, 60cm imagery probably LODs 6 through 16. To answer your question yes LOD=Auto is enough, that's all you need to do.

Jim
 
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