Hi,
Nigel Atkinson schrieb:
If the graphics load is too much then perhaps the answer is more
agressive use of LOD and simpler models.
Josh
What sort of FPS does everyone get? I get about 10-15 on a fairly
grunty laptop with 0.9.9 windows version and at 7 - 11fps with the CVS
version compiled with Cygwin. I can run MSFS2004 with more detailed
scenery locked at 30fps with out problem.
It clearly depends. I have a Pentium M 1.5GHz and a ATI Mobility Radeon
9600 with the binary-only driver from ATI for X.org. In the standard
scenery I typically get around 20-30fps at 1280x1024, depending on the
region and whether I have random objects active or deactivated.
In the custom scenery I can only fly with 800x600 or with random objects
deactivated at 1280x1024. In the latter case I get around 12-18fps, in
the former case it drops down to 6fps at times.
I noticed that the customised scenery tends to produce not only more -
which I anticipated - but a lot more triangles than the original. We
have up to 30.000 triangles on a single tile, where 60% of that seems to
be due to line data (streets, small rivers, railroads) See my report on
<http://www.custom-scenery.org/Triangle_Counts.272.0.html>
I've tried some simplicifation (Douglas-Peucker) on the original vector
data and came up with some good triangle reduction. Unfortunately, the
up-front reduction also severely impacts the quality of the rendering:
very edgy rivers, heavy mutation of shapes (e.g. quadrangle -> triangle)
I'd very much like to go towards a rendering engine with appropriate
terrain LoD for more detailed terrain. I'd even help in implementing it
wherever I can, being the graphics non-expert I am. Hell, I'd even try
it myself, but rest assured it'd take me a very long time...;-)
Cheers,
Ralf
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