1
0
Fork 0
Commit graph

34 commits

Author SHA1 Message Date
ehofman
557a879483 Mathias Fröhlich:
this is basically the past patch I sent to the list and which should now
really (...!?!?) fix the no ground below aircraft problem.
Reasons:
I understood my remaining thinko I introduced with the prevous patch, and the
same thinko I made in my test cases.
The feedback from the list told me that it should help.
2005-06-02 08:51:47 +00:00
ehofman
807d2cc3ca Mathias Fröhlich:
2.
I made YASim query the the ground cache at the wrong place. This one fixed
this, one can now land the bo105 on top of the oracle buildings  :)

3.
Is a followup of the scenery center update code: Register the scenery center
transform at the time it is put into the scene graph not at creation time.

4.
I held that part back from the past hitlist patch, because I hoped that it
will be sufficient (and the last one was in fact the biggest part) without.
As some test cases from Melchior showed me, it is not. We have additionally
to the wrong computed transform from the prevous patch some roundoff
problems. This patch adds some small tolerance to for the point in triangle
test.
... may be one even needs to increase the eps value further if starting at
some tile boundaries still fails.

5.
That is a big chunk.
Tested now for two days while hunting the second patch  :) .
That is a partial rewrite of the groundcache to use its own datastructures for
that flat scenegraph in the cache. The basic advantage is, what Erik
suggested, to precompute some often used values of these triangles. Also
allmost all computations are now in double precision which should decrease
(hopefully fix), together with a similar tolerance for some point in triangle
tests, the problems with 'no ground below aircraft'.
I am playing with octrees for the groundcache, that will finally solve the
performance problem when high triangular count models end up in the
groundcache. This patch is also some prework for those octrees ...
2005-05-30 08:48:27 +00:00
ehofman
b71b3af66c A patch from Mathias to fix the startup at a tile boundry problem. 2005-05-26 08:13:06 +00:00
curt
2acdd02879 Clean up various compiler warnings that have crept into the code. This
by no means get's them all, but it's a start.
2004-04-01 15:27:53 +00:00
andy
439a9fa1e4 Minor API changes to support the new sg_geodesy implementation. A few
places now use sgCartToGeod() instead of rolling their own
approximation.  And YASim is now using exactly the same 3D coordinate
system as the rest of FlightGear is.
2003-12-19 02:42:32 +00:00
curt
071a3d99b9 The code to find the highest hit below you didn't work quite right when
reinitializing at a new location.  This should fix the problem.
2003-11-25 01:08:39 +00:00
curt
a62e09d72b Comment out timing calls, but leave them there for future timing experiments. 2003-11-24 01:47:09 +00:00
ehofman
4626ff428d Make sure SGTimeStamp is found 2003-11-22 12:03:10 +00:00
curt
f6fad7f000 Tweaks and massages to the ground intersection code. Most of the changes
are cosmetic, but we now have a combination of code that seems to work
very robustly.  I was able to land the yf23 at about 130 kts on the lower
level of the bay bridge and then taxi the entire length.
2003-11-21 22:00:46 +00:00
curt
ca6067cbc0 With this patch, you can fly under bridges, then turn around and land on
them lengthwise.
2003-11-21 04:41:01 +00:00
curt
0f1c24bbed Fix a terrain intersection calculating bug. The code wasn't quite handling
traingle strips right ... it was mixing up the vertex ordering slightly.
Oh what the heck, it was really screwing up tristrips.  Everything else looks
correct though. :-)  Hurray for the red book.
2003-11-21 03:13:52 +00:00
ehofman
f46bda0621 A bounding sphere may be empty, which is perfectly valid.
Such empty spheres have negative radius, but undefined center.
2003-06-04 09:57:11 +00:00
curt
92a58f6555 Consolodating scenery structures in scenery.hxx. 2002-05-14 05:49:47 +00:00
david
56473dc28d Mac OS X fixes and MSVC warning fixes from Jonathan Polley. 2002-05-10 23:35:06 +00:00
david
58a001ad32 Patch from Norman Vine:
Yikes  --
Looks like I broke the scenery.current_normal when I last
reworked the hitlist code.

I guess this is proof that no one has been using it.
2002-04-25 19:44:27 +00:00
david
c5f6293f17 Fix for vanishing-model problem: models are drawn in the same scene
graph as the terrain, except for internal cockpit view.  The SSG
scene-graph variables (except for the lighting root -- I'll get that
later) are now held in globals.hxx.

FGModelMgr::draw() is obsolete; I'll remove it in a future revision.
2002-04-13 21:36:22 +00:00
curt
586d7f127a White space tweaks. 2002-03-18 19:02:59 +00:00
curt
464f036f35 Here is a cleaned up hitlist that should solve the PLib conflict
and fixes a 'potential bug' if the FGFS View code were to change

I also consolidated the specialized IntersectLeaf()
as they really didn't gain us much outside of their having
'more direct access into the SSG controlled data'

I would like to see the fgCurrentElevation functions moved
out of hitlist.cxx.

The one obstacle is their being dependent on my PLib
auxillary functions

ssgGetEntityTransform()
ssgGetCurrentBSphere()

code has been run through astyle with the default options
2002-03-18 16:25:16 +00:00
curt
8138c82b58 Incorporated Norman's optimized line/geometry intersection code. 2002-03-17 00:38:24 +00:00
curt
73b92a697d Further restructuring of the scenery loading code. 2002-03-03 23:20:55 +00:00
curt
9bae80d94a Latest version of hitlist.cxx from Norman Vine:
- Addresses some ot the recent profiling results.
- Added a 'lazy evaluation' in IntersectBranch and inlined a couple
  of HEAVILY called functions.
2002-02-28 23:59:28 +00:00
curt
08bbb83b8e A grab bag of tweaks and patches from Norman Vine.
- Better mingwin/cygwin support
- Various gui tweaks and code clean ups
- Initialization clean ups
- Hitlist/scenery tweaks
- other misc. stuff.
2002-02-05 20:54:08 +00:00
david
2db3a9a93c Renamed static function from sgdPointInTriangle to pointInTriangle to
avoid conflict with most recent PLIB CVS.
2001-12-24 18:56:15 +00:00
curt
2fbab0d702 Various floating point / initial value bug fixes from Christian Mayer. 2001-10-11 22:07:45 +00:00
curt
17c781a870 Remove cached intersection code so that we can support intersecting with
dynamic objects.
2001-07-31 19:54:29 +00:00
curt
96b88e539f Move FGControls declaration to globals.hxx 2001-07-22 19:51:16 +00:00
curt
4b23576df1 Shuffled around and restructured the terrain elevation interesection code
to make it usable by the threaded tile loader for placing objects at ground
level at load time.
2001-07-11 15:51:21 +00:00
curt
a0d50000ba Modifications to coordinate with recent changes in simgear. 2001-05-15 22:30:39 +00:00
curt
9fac7682e3 inlines.h -> sg_inlines.h 2001-03-24 14:56:37 +00:00
curt
1bf3001749 FG_ to SG_ namespace changes. 2001-03-24 00:18:01 +00:00
curt
94b78153eb Updates to track more consistant naming scheme in simgear. 2000-10-23 17:10:06 +00:00
curt
3d47d2284e Tweaks ... 2000-09-06 00:11:01 +00:00
curt
2ec4d6782e Rearranging some code. 2000-06-20 02:29:58 +00:00
curt
bb61414e04 Initial revision. 2000-06-16 02:15:08 +00:00