• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

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How to exclude default mesh

Hi again, Dave:

I have made an initial inquiry as to what P3Dv2.x Tessellation implements in the run time 3D world rendering process.


I'm tempted to refer to it as MSFS "Terrain Mesh Complexity" on steroids, but someone here might object to that being a drug-related comment. :D

http://www.prepar3d.com/SDKv2/Learn...display/scenery_settings.html#TerrainAndWater

http://www.prepar3d.com/SDKv2/LearningreCenter/getting_help/getting_help.html#VideoCards



Yikes ! :confused:

Now I've got to ask: Were your OP screenies above using P3D in native DX-11, and if not, were you using DX-10 mode with more than 1 video card ? :scratchch


Thank in advance for your reply. :)

GaryGB
 
GaryGB,
The OP screenies were in Native DX-11 using tessellation. One unusual downside to tessellation that I am noticing though is that somehow due to the difference in rendering digital elevation data on the GPU (DX-11) instead of the CPU, the result from a Simconnect call to Surface Elevation is off when the tessellation mode is used.
I would be interested in the higher resolution data for my canyon area if you could point me to it - I would like to have more boulder" definition to the sides of the canyons if possible. I was going to just edit the DEM data directly using MicroDEM. I would also like to have better imagery resolution as well - but I think that will have to come from using some actual photos of the canyon.
Yes, it would be nice to harden the top of the bridge (well, the rails actually) so I could land on it with a helicopter. I think I can use MCX for that.

Thanks again!

Dave
 
George,
Could you explain what you mean by broken? Visually, it is working fine (well, I am running P3Dv2.4 right now) - what will be fixed in V3

Dave
 
Hi Dave:

Sorry for the delay in getting back to this thread (been attending to other matters for a few days).

whitav8 said:
GaryGB:

The OP screenies were in Native DX-11 using tessellation. One unusual downside to tessellation that I am noticing though is that somehow due to the difference in rendering digital elevation data on the GPU (DX-11) instead of the CPU, the result from a Simconnect call to Surface Elevation is off when the tessellation mode is used.
Click to expand...

If ADE and/or SBuilderX work OK in P3Dv2.x, when "connected" to a live MSFS / P3D session, they should be able to capture / report the "ground" Altitude (aka "surface" Altitude) of the existing actively loaded terrain mesh (in order to apply that value to the individual vertices of a polyline and/or polygon to points) ...within the appropriate dialog boxes / context menus of their respective work-spaces. :idea:

whitav8 said:
I would be interested in the higher resolution data for my canyon area if you could point me to it - I would like to have more boulder definition to the sides of the canyons if possible. I was going to just edit the DEM data directly using MicroDEM. I would also like to have better imagery resolution as well - but I think that will have to come from using some actual photos of the canyon.
Click to expand...

:teacher:

3 Arc Second is 90 (aka in FS="76.4") Meters between elevation data points (SRTM horizontal resolution)

1 Arc Second is 30 (aka in FS="38.2") Meters between elevation data points (3x that of SRTM horizontal resolution)

1/3 Arc Second is 10 (aka in FS="9.6") Meters between elevation data points

1/9 Arc Second is ~3.3 (aka in FS="4.8") Meters between elevation data points < may be Resampled to "2" Meters if desired >


FYI: There is at least 1/9 Arc Second (~3.3 Meter) resolution elevation data available via USGS National Map:

http://nationalmap.gov/

NOTE: Before attempting custom-sized downloads from USGS National Map, create a USGS account first via EROS:

https://ers.cr.usgs.gov/login/

...or via EarthExplorer: http://earthexplorer.usgs.gov/

http://www.usgs.gov/pubprod/):


There is also other higher resolution ex: LiDAR data for areas near your project at:

http://opentopo.sdsc.edu/gridsphere/gridsphere?cid=datasets


Additionally, there is higher resolution ex: NAIP 'non-urban' aerial imagery data for your project area via USGS National Map


CAVEAT:

MS Internet Explorer (or 'Edge') may be required to order / download properly with 'some' USGS map viewer and search result pages :alert:

whitav8 said:
Yes, it would be nice to harden the top of the bridge (well, the rails actually) so I could land on it with a helicopter. I think I can use MCX for that.
Click to expand...

If you do make a version of your bridge with a "Platform" having a "Hardened / Concrete" attribute attached to the texture used for the top rail-bed / deck surface, please let me know, as I would be interested in knowing if one may be able to still allow continuity of the Railroad vector textured polygon object across the span of the bridge ...without impacting the underlying terrain mesh in the valley below.

Hope this helps ! :)

GaryGB
 
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