Frame rate - Revision history

Cholmondely: Added note on missiles

2025-06-29T09:57:56Z

Added note on missiles

Cholmondely: Oops!

2025-06-27T19:58:43Z

Oops!

Cholmondely: Added a_c's explanation

2025-06-27T19:57:17Z

Added a_c's explanation

Cholmondely: /* Links */ Added another

2025-06-27T13:57:55Z

‎Links: Added another

Cholmondely: Page Created

2025-06-27T13:54:31Z

Page Created

New page

[[File:FPS report.png|700px]]

'''FPS''' - frame rate

'''Entities''' - how many entities (ships, stations, asteroids etc) there are in the system at the moment.

The other stats are possibly how much memory Oolite is using and the collision count at the moment.

'''abs/pwm''' - the current position of the player ship, in both absolute co-ordinates and in meters relative to the planet-witchpoint line.
:For the co-ordinates, the zero point of abs is the witchpoint. It is useful for scripters (and debug console users) for spawning ships and suchlike (to know where to put things).
:For in-game use, if you want to leave a spot and return to it, you can make a note of the co-ordinate of where you are and then fly back there. You can also use it for navigation of course to know which direction you're flying in by how the numbers change.

'''TAF''' - time acceleration factor.

== Overview ==
The Frame rate is that of your monitor.

This is affected by your computer hardware, software and which OXPs you are running.

It should ideally be in excess of 60fps, with 30fps being a minimum.

=== Measurement ===
==== fps_monitor.oxz ====
Cag's [[Javascript_optimization_tips#Frame_rate|fps_monitor.oxz]] outputs into your [[Latest.log]] (search for [FPS_MONITOR])

You should find a readout like this:
13:51:31.123 [FPS_MONITOR] GlobalLog (OOJSGlobal.m:266): *** FPS report ***: over the last minute, truncated harmonic mean fps was 55, high: 59, low: 46

==== Oolite TR
Pressing <font color="Red">'''F'''</font> (in the '''TR''' (Developer's Test Release) versions of Oolite) displays frame rate, object- and collision-counter and player's pwm-coordinates. A sample is given above.

[https://oolite.space/#download Developer's Test Release Downloads] - scroll down the page to find it

== Links ==
*[[Time scales in Oolite]]
*[[Debug OXP|Debug menu]] - comes with the Developer's Test Release version
*[https://bb.oolite.space/viewtopic.php?t=8570 Frame Rate and Object Counter] (2010)
*[https://bb.oolite.space/viewtopic.php?t=4659 The nature of OXP on frame rate...] (2008)

=== These might slow down your frame rate ===
*[[Oolite JavaScript Reference: Timer]]
*[[Oolite JavaScript Reference: Frame Callbacks]]

[[Category:Oolite scripting]]

@@ Line 7: / Line 7: @@
 It should ideally be in excess of 60fps, with 30fps being a minimum.
 === Measurement ===
@@ Line 30: / Line 35: @@
 *[[Oolite JavaScript Reference: Timer]]
 *[[Oolite JavaScript Reference: Frame Callbacks]]
 [[Category:Oolite scripting]]

@@ Line 15: / Line 15: @@
 :51:31.123 [FPS_MONITOR] GlobalLog (OOJSGlobal.m:266): *** FPS report ***: over the last minute, truncated harmonic mean fps was 55, high: 59, low: 46
-==== Oolite TR
+==== Oolite TR ====
 Pressing <font color="Red">'''F'''</font> (in the '''TR''' (Developer's Test Release) versions of Oolite) displays frame rate, object- and collision-counter and player's pwm-coordinates. A sample is given above.

@@ Line 1: / Line 1: @@
-[[File:FPS report.png|700px]]
+[[File:FPS report.png|700px|thumb|'''FPS''' - frame rate (frames per second)<br>'''Entities''' - how many entities (ships, stations, asteroids ''etc'') there are in the system at the moment.<br>'''p''' is the number of collision checks done using a simple collision radius check, performed away from the player<br>'''c''' is the number of collisions using a more precise algorithm, performed within "range" of the player.<br>"Range" is a value depending on the collision radius of objects being checked against each other and on an arbitrary constant defined in the code.<br>'''abs/pwm''' - the current position of the player ship, in both absolute co-ordinates and in meters relative to the planet-witchpoint line.<br>For the co-ordinates, the zero point of '''abs''' is the witchpoint. It is useful for scripters (and debug console users) for spawning ships and suchlike (to know where to put things).<br>For in-game use, if you want to leave a spot and return to it, you can make a note of the co-ordinate of where you are and then fly back there. You can also use it for navigation of course to know which direction you're flying in by how the numbers change.<br>'''TAF''' - time acceleration factor.]]
 == Overview ==
@@ Line 35: / Line 22: @@
 == Links ==
 *[[Time scales in Oolite]]
-*[[Oolite coordinate systems]]
+*[[Oolite coordinate systems]] - more on '''abs''' & '''pwm'''
 *[[Debug OXP|Debug menu]] - comes with the Developer's Test Release version
 *[https://bb.oolite.space/viewtopic.php?t=8570 Frame Rate and Object Counter] (2010)