override frameRate ?

General Discussion Other

apex_nd

in General Discussion • Other • 5 months ago

hi guys i searched topic, surprisingly no one brought it up before.
can we override the method frameRate(), to set frame rate >60 , or even not set a targeted frame rate, and see the maximum outcome of the algorithm?
i'm building a project that compares the rendering abilities between OpenGL and P3D, using fairly similar code, and with the same geometry, and having a frame rate 60 gives a very limited/(lack of precision) outcome.
Thank you

Replies(9)

PhiLho

Re: override frameRate ?

5 months ago

Why override this function? Just call it with the argument you want...

apex_nd

Re: override frameRate ?

5 months ago

i don't know if i'm missing something, but if i specify frameRate(1000) or frameRate(100) when printing framerate it gives 59~60,
i did my own testing, in case processing proportions the result down to 60,

//for any program,
int fr=0;

long t=System.currentTimeMillis();

void draw()

{

fr++;

...//code

if(System.currentTimeMillis()-t > 1000)

{

t=System.currentTimeMillis();

fr=0;

print(frameRate+"\n");

}

}

same results 59~60 fps

v.k.

Re: override frameRate ?

5 months ago

In the code above, there is no call to frameRate(bigNumber)...

if I run this:

void setup(){
frameRate(1000);
}
void draw(){
println(frameRate);
}

I got this in console...

2594.8945

2406.5793

2231.8845

2564.2517

2385.6475

2217.7043

2068.136

2694.6558

2507.0232

2327.9028

2166.8486

2479.2642

2316.0117

2166.5122

2033.3334

1912.6447

And your test:

int fr=0;
long t=System.currentTimeMillis();
void setup(){
frameRate(2000);
}
void draw()
{
fr++;
//code
if(System.currentTimeMillis()-t > 1000)
{
t=System.currentTimeMillis();
fr=0;
print(frameRate+"\n");
}
}

gives me :

2958.4102

4252.127

4050.5464

4121.367

4140.2715

4212.5454

rbrauer

Re: override frameRate ?

5 months ago

In the beta versions of Processing, as far as I know, OPENGL and P3D refer to the exact same renderer. If you're using 1.5.1 and testing OPENGL with, for example, frameRate(-1); (unlimited) and getting 60fps your graphics card might be doing vsync automatically. You can generally turn it off by setting a "profile" for Processing's java.exe in your graphics card's control panel thing.

PhiLho

Re: override frameRate ?

5 months ago

Anyway, I still fail to see the point of going beyond 60-100 FPS... (I don't say it is useless, I say I don't have the information.)
A movie has a frame rate of 24-25 FPS, and is fluid. Now, a movie has a natural movement blur effect that a computer graphics can lack, which it compensates, perhaps, with a higher frame rate. I wonder if the human eye sees a difference between 60 and 200 FPS...

apex_nd

Re: override frameRate ?

5 months ago

hi guys, i did a little testing depending on your replies, the example "V.K." gave worked fine on the default renderer, (which i didn't try) , but when i tried on P2D, P3D, or OPENGL the frame rate was forced down to 60fps.
"rbrauer" gave the exact explanation of what's going on, like he said the vertical sync in the graphics card is causing this.
just tampering in the 3d options of my graphics card, (turning off vsync) did the job, but i had to do that globally, it didn't work when i created a profile for processing (v 2.0b8) maybe because it's an unstable version. (for 1.1.5 it worked fine)

@PhiLho i'm also not totally convinced of the point of higher frame-rates, but my professor asked to do that (and he threw some big technical words :p )