-Original Message-
From: Ron Jensen
Sent: Saturday, May 19, 2012 2:54 AM
To: FlightGear developers discussions
Subject: Re: [Flightgear-devel] Sea color
On Friday 18 May 2012 10:59:22 Alan Teeder wrote:
On the subject of frames rates I have a couple of questions.
2
Thorsten
Conclusion: don't try to optimise, particularly for a poor system -
you might make it better for that system, but more likely you will
make it worse for everyone else.
Judging by framerate comparisons with people in the forum, my system is
still somewhere in the upper third -
With your scientific background you should know better than
cherry-picking that statistic. Those on the forum are a self-selected
minority of our users.
(...)
No I'm most definitely not. What I'm saying is that by optimising for a
subset of users, you run the risk of sub-optimising for the
After sleeping it over...
Now set
all Advanced Weather settime() to 0.0 and retest with METAR. Wow!!!
Improvement, not as good as Basic Weather , but much better. Worst fps is
stable at 24, av. is still unstable.
You had a worst of 27 in your list
Hello Thorsten,
Somehow I don't like the way this discussion is going.
You had a worst of 27 in your list
http://dl.dropbox.com/u/57645542/stagger-data.htm
running everything and were unhappy. Now a stable worst of 24 makes you
happy?
The facts are:
-it isn't that much important if you
The facts are:
-it isn't that much important if you have 20fps or 60fps. But it is more
important that the framerates are stable !!!
It is for Vivian. We seem to agree that a stable 20 fps is possible (I get it
and Vivian gets it if he throttles down), but he aims at more. Which is okay
On the subject of frames rates I have a couple of questions.
1. Is there a mechanism for odd and even frames (or even
frame.1,frame.2,frame3...frame.n for a once in every n frames task) to be
run separately, or is everything that is scheduled at a specific rate
executed one go?
2. Is there a
Alan
On the subject of frames rates I have a couple of questions.
1. Is there a mechanism for odd and even frames (or even
frame.1,frame.2,frame3...frame.n for a once in every n frames task) to be
run separately, or is everything that is scheduled at a specific rate
executed
one go?
2.
Thorsten,
It is for Vivian. We seem to agree that a stable 20 fps is possible (I get
it and Vivian gets it if he throttles down), but he aims at more. Which is
okay with me.
I understood it wasn't stable. That's why he was happy with stable 24fps.
I probably misunderstood here.
Well,
On Friday 18 May 2012 10:59:22 Alan Teeder wrote:
On the subject of frames rates I have a couple of questions.
2. Is there a mechanism for making the core - fdm, afcs, equations of
motion etc. run at a higher priority than the rest of the simulation?
The JSBSim FDM and systems coded in JSBSim
Thorsten
Testing continues
Concorde has of the order of 6000 lines of active code, and yes, it
displays exactly the same discontinuities as Advanced Weather (approx.
10,000 lines of code). So far, I have not found any other examples.
Just to idly continue my list - the A380 has in excess
Conclusion: don't try to optimise, particularly for a poor system - you
might make it better for that system, but more likely you will make it
worse for everyone else.
Judging by framerate comparisons with people in the forum, my system is still
somewhere in the upper third - many people
Thorsten
I did a bit of testing of my own yesterday, and I have made a few other
observations as well.
User feedback:
I've largely come to ignore that (with few exceptions such as Vivian's
performance table), because trying to make sense of it is a path into
madness. Just a few
Yes. You have produced a very nice piece of work which gives variable
results in different systems. We need to at least understand the cause
and try to fix it
GC according to what I can test.
Pity you didn't use standard scenery. I don't think custom scenery and
the ufo will produce
Concorde has of the order of 6000 lines of active code, and yes, it
displays exactly the same discontinuities as Advanced Weather (approx. 10,000
lines of code). So far, I have not found any other examples.
Just to idly continue my list - the A380 has in excess of 8000 lines of Nasal,
I did a bit of testing of my own yesterday, and I have made a few other
observations as well.
User feedback:
I've largely come to ignore that (with few exceptions such as Vivian's
performance table), because trying to make sense of it is a path into madness.
Just a few examples: On my own
Thorsten
Does the problem go away if you set local-weather/dynamics-loop-flag=1
from the property browser *after* Advanced Weather is started?
Does the problem go away if you set local-weather/timing-loop-flag=1
from the property browser *after* Advanced Weather is started?
Does the
Tested extensively today, and the short answer is no. There is some
improvement as the flags are successively set to 0, but Advanced Weather
never becomes as smooth as Basic Weather (and that's not without
staggers of
its own).
(...)
I suppose the bottom line is that this just might
On 11.05.2012 10:21, Renk Thorsten wrote:
The problem with that consequence is: As you switched all loops off,
the Nasal part of Advanced Weather ceased to run completely and all
that's left is the same cloud-generating functionality which is
responsible for Basic Weather (C++ and shader
ThorstenB
On 11.05.2012 10:21, Renk Thorsten wrote:
The problem with that consequence is: As you switched all loops off,
the Nasal part of Advanced Weather ceased to run completely and all
that's left is the same cloud-generating functionality which is
responsible for Basic Weather (C++
It is the largest expanse of intertidal mudflats and sand in the United
Kingdom! Neither of these locations could be remotely described as deep
ocean, and yes, we should certainly be investigating how to best model
such areas of sea.
Okay, if you're specifically after deep ocean (i.e.
Does the problem go away if you set local-weather/dynamics-loop-flag=1
from the property browser *after* Advanced Weather is started?
Does the problem go away if you set local-weather/timing-loop-flag=1
from the property browser *after* Advanced Weather is started?
Does the problem go
Hmm I've got something wrong here then - if I understand that right I
select
Advanced Weather, and skydome and the sea colour stuff should run? I get
this:
http://dl.dropbox.com/u/57645542/fgfs-screen-190.png
It doesn't seem to have any interpolation.
The color seems about right to me
There are good sources for sea colour out there - here is one:
http://oceancolor.gsfc.nasa.gov/FEATURE/IMAGES/A2008129125500.Scotland.png
The Northern North Sea, away from the turbidity and major river outfalls
of the Southern North Sea, is indistinguishable from the Atlantic, the other
Thorsten
There are good sources for sea colour out there - here is one:
http://oceancolor.gsfc.nasa.gov/FEATURE/IMAGES/A2008129125500.Scotlan
d
.png
The Northern North Sea, away from the turbidity and major river
outfalls of the Southern North Sea, is indistinguishable from the
Renk Thorsten thorsten.i.r...@jyu.fi writes:
There are good sources for sea colour out there - here is one:
http://oceancolor.gsfc.nasa.gov/FEATURE/IMAGES/A2008129125500.Scotland.png
The Northern North Sea, away from the turbidity and major river outfalls
of the Southern North Sea, is
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