Helix 3D Animation Screensaver

Blade · Post by **Blade** » Thu Mar 03, 2005 1:50 pm

Reducing the the texture sizes wouldn't help to improve the CPU usage ad it depends on the videocard...

Adding a delay(1) inside the main loop should relax the CPU enough without ruining the smoothness.

Psychophanta · Post by **Psychophanta** » Thu Mar 03, 2005 5:56 pm

Guimauve wrote:I have tested my code on my computer. So I have little bit reduced the number of model from 10 to 5. Also I have reduced the texture size from 128 pixels X 128 pixels to 64 pixels X 64 pixels.

This I will probably help your computer to render the scene.
Anyway if you have a small configuration PC will have many problems with this code.

Guimauve, i have no problems. It runs smoothly. But your code "eats" 100% CPU time in any PC
It is inadmissible that a screensaver get all 100% CPU use

Blade wrote:Reducing the the texture sizes wouldn't help to improve the CPU usage ad it depends on the videocard...

No. That's not the problem. The problem is explained here: viewtopic.php?t=12747
And here: viewtopic.php?t=12825 is a quick solution.

Blade wrote:Adding a delay(1) inside the main loop should relax the CPU enough without ruining the smoothness.

Yes. It depends on how fast is the machine. On fast machines Delay(15) instead Delay(1) works nice

Blade · Post by **Blade** » Thu Mar 03, 2005 7:00 pm

Now I remember that thread...

My congrs Psychophanta, great solution.
Something like that should be included natively in PB (a flag in FlipBuffers() ?), so that anyone can easily make CPU free apps...[/u]

Guimauve · Post by **Guimauve** » Thu Mar 03, 2005 7:17 pm

I can't understand why the Delay(10) can reduce CPU usage.

Anyways thanks for this small detail.

(Je retourne étudier ça)

Guimauve

dagcrack · Post by **dagcrack** » Mon Mar 28, 2005 8:53 am

Code: Select all

; Index = SpinByte(Index,1,10,1)

?
at least works...
But I was expecting more.

Rescator · Post by **Rescator** » Mon Mar 28, 2005 2:06 pm

Be carefull if you go higher than 1500.
I tried 2500 and things got really jerky.
At 2000 not half bad. At 1500 it was pretty ok.

Do NOT try 10000 models. I did and Windows went nuts with my swap file *laughs* Some insane memory needs.

Btw! 1500 models * 60 polygons = 90000 polygons.
so it seems that my system don't like more than 100000 polygons at least with this test.

A houndred thousand polygons is quite a lot though.
Most 3D characters in games are only 5000 polygons.
Which in this test would equal 84 or so models.

Guimauve · Post by **Guimauve** » Mon Mar 28, 2005 5:15 pm

Just in case these command can be usefull to your project :

Code: Select all

ProcedureDLL.l SpinLong(No.l, mini.l, maxi.l, increment.l)
     
     No + increment
     
     If No > maxi
          No = mini
     EndIf
     
     If No < mini
          No = maxi
     EndIf
     
     ProcedureReturn No
     
EndProcedure


ProcedureDLL.f SpinFloat(No.f, mini.f, maxi.f, increment.f)
     
     No + increment
     
     If No > maxi
          No = mini
     EndIf
     
     If No < mini
          No = maxi
     EndIf
     
     ProcedureReturn No
     
EndProcedure

ProcedureDLL.b SpinByte(No.b, mini.b, maxi.b, increment.b)
     
     No + increment
     
     If No > maxi
          No = mini
     EndIf
     
     If No < mini
          No = maxi
     EndIf
     
     ProcedureReturn No
     
EndProcedure


ProcedureDLL.w SpinWord(No.w, mini.w, maxi.w, increment.w)
     
     No + increment
     
     If No > maxi
          No = mini
     EndIf
     
     If No < mini
          No = maxi
     EndIf
     
     ProcedureReturn No
     
EndProcedure

Sorry for any inconvenients.

Regards

Guimauve