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Simple task creates a major flaw!

falcon409

falcon409

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I am creating 3B5-Twitchell Airport and Float Plane Base for FSX/P3D. The main airport is complete, but when it comes to water, nothing is ever simple. I created a water poly to cover default shore areas that were visible along the photoreal shoreline. That worked (sort of) but produced the end result you see in the second top down shot.

FSX_Default-2016-aug-11-002.jpg


FSX_Default-2016-aug-11-003.jpg


Why is that poly knocking out the river system for the entire east coast?
 
Hi Ed:

What QMID / LOD terrain grid size are the quads in the first screenshot from SBuilderX ? :scratchch


Also, if you load the 3B5 FS SDK Resample photo-real BGL into TMFViewer along with FSX' local default CVX vector scenery BGL:

[FSX install path]\Scenery\0302\scenery\cvx2916.bgl


...and set different QMID and/or LOD terrain grid sizes "ON", you can also see what size areas are 'involved'. :idea:


How far away is the FSX default CVX Hydro vector scenery content actually excluded... more than a LOD-5 quad ?


Hope this helps with sorting things out. :)

GaryGB
 
Gary the first shot is QMID level 15.

Here is the view in TmfViewer. . .QMID Level 16

FSX_Default-2016-aug-12-005.jpg


The area affected is the entire lake system north and south.
 
One more shot Gary. This is set to QMID level 11 and is exactly the area affected as I see the tips of the lake both north and south that fall outside of that grid.
FSX_Default-2016-aug-12-006.jpg
 
Hi Ed:

You may find that CVX vector scenery content in an entire quad (typically LOD-9 / QMID-11 sized) is prevented from normal display by a attribute in another CVX vector BGL which loads scenery content within the same Geographic coverage area.

The attribute I am referring to is "ADDTOCELLS", which is a command switch utilized with the FS SDK SHP2VEC compiler.


Normally when we create such CVX vector scenery content via a 3rd party FS utility GUI such as ADE or SBuilderX, BGLs compiled by SHP2VEC will be output with the above cited "ADDTOCELLS" attribute set to "ADDTOCELLS=TRUE". :pushpin:


If we 'experiment' by editing the SBuilderX v3.14 SBuilder.ini file on Line 92, and instead set "AddToCells=False", we may inadvertently prevent overlay of custom CVX vector scenery content on top of default (or other 3rd party CVX vector scenery content) which loads within the same Geographic coverage area (typically a LOD-9 / QMID-11 sized quad). :alert:

This occurs because the "AddToCells=False" parameter value in a CVX vector BGL allows it to replace all other default (or other 3rd party) CVX vector scenery content loaded by such BGL within the same Geographic coverage area.


When the default "ADDTOCELLS=TRUE" parameter value in a CVX vector BGL is used, this allows it to Add its CVX vector scenery content TO all other default (or other 3rd party) CVX vector scenery content loaded by such BGL within the same Geographic coverage area (typically a LOD-9 / QMID-11 sized quad).


NOTE: In this particular context, those LOD-9 / QMID-11 sized quads are referred to as... "Cells"


FYI: When the default "ADDTOCELLS=TRUE" parameter value in a CVX vector BGL is used, this allows other default (or other 3rd party) CVX vector scenery content loaded by such BGL within the same Geographic coverage area (typically a LOD-9 / QMID-11 sized quad) to display properly ...EXCEPT where purposely excluded by a discrete CVX vector BGL "Exclude" -type vector object.



So you may wish to edit the SBuilderX v3.14 SBuilder.ini file on Line 92, and instead set "AddToCells=True" for output of all CVX vector BGLs when compiled by FS SDK SHP2VEC. ;)


If by any chance this "ADDTOCELLS" attribute toggle was purposely implemented within the SBuilder.ini file to compensate for challenges getting one's custom CVX vector scenery content to display properly on top of default (or other 3rd party) CVX vector scenery content) which loads within the same LOD-9 / QMID-11 quad sized Geographic coverage area, one may need to utilize a different method to "exclude and replace" such default (or other 3rd party) CVX vector scenery content which allows a more "peaceful co-existence" within the FS rendering sub-system. :alert:

http://www.fsdeveloper.com/forum/threads/multiple-flattens-in-a-qmid-11-square.4165/#post-26034



BTW: While working with this quirk of the MSFS vector scenery sub-system can sometimes be an inconvenience, the FSX LOD-9 / QMID-11 quad sized Geographic coverage area in which one may need to "exclude and replace" such default (or other 3rd party) CVX vector scenery content is thankfully smaller than the LOD-5 / QMID-7 quad sized areas we had to "exclude and replace" in earlier versions of FS. :coffee:


Hope this helps with further fine-tuning custom CVX vector scenery content for optimal display within the context of other underlying and surrounding default (or other 3rd party) CVX vector scenery content. :)

GaryGB
 
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