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TerraGear roadmap: Difference between revisions
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It would be nice to have all landclass images and this single per tile image to all have the same resolution, so we could use a texture array. This allows us to draw an entire tile (other than linear road / rail / stream ) in one openGL draw call. | It would be nice to have all landclass images and this single per tile image to all have the same resolution, so we could use a texture array. This allows us to draw an entire tile (other than linear road / rail / stream ) in one openGL draw call. | ||
== Status == | |||
{{FGCquote | |||
|1= A brief status update on what I am currently doing on the master branch: | |||
# It's been a year since I started working on LOD ( using Mathias' .SPT directory hierarchy ). This exposed a major weakness in the toolchain used for ws2.0 - It triangulated landclass polys individually instead of whole tile at a time. This was necessary, as triangulating the whole tile with OSM roads cut-in was very unstable. I couldn't get any library to succeed for more than a few hundred tiles. But when trying to simplify these tiles, large holes get generated as the mesh is non manifold. | |||
# I 'started from scratch' with a couple assumptions: | |||
* all vector data will be draped over the terrain - although we may still cut in some smoothing polys * airports will be draped over a smoothed terrain within the airport boundaries ( changing airport layout will not require new tg-construct run unless boundary is changed ) | |||
* tile mesh must be manifold | |||
* all intermediate files can be visualied with GIS tools ( request from martin ) | |||
I estimate I'm about 1 month away from having tg-construct generating a base mesh. | |||
Having a mesh to work with ( in CGAL ) gives me a couple feature for 'free'. | |||
* face and point normals can be generated from CGAL | |||
* local differentials can also be generated ( request from Thorsten Renk - terrain curvature ) | |||
I have a large 12x10 degree section of Europe shapefiles from mapserver. Once I have a scenery, I'll put chunks of it on dropbox to experiment with. | |||
|2= {{cite web | |||
| url = http://forum.flightgear.org/viewtopic.php?p=280092#p280092 | |||
| title = <nowiki>Re: Is the Scenery Workflow broken?</nowiki> | |||
| author = <nowiki>psadro_gm</nowiki> | |||
| date = Mar 21st, 2016 | |||
| added = Mar 21st, 2016 | |||
| script_version = 0.25 | |||
}} | |||
}} | |||
== Progress == | == Progress == | ||