 |
Author |
Topic: timeblind - camera works (Read 993 times) |
|
elout
 
|
timeblind - camera works
« on: Dec 21st, 2003, 6:35pm » |
|
I started to work on this (web)cam VJ tool tool, so in the future I can add a lot of different camera effects.
http://www.xs4all.nl/~elout/proce55ing/camstuff/diaapp003.pde
Although this version is still alpha and I`m still working and thinking about a better interaction model and different effects.
One thing I like the most till now, is this timeblind - timeblur thing.
Code:
// elout de kok - www.xs4all.nl/~elout/
// timeblind - timeblur
// p5 - v.067
boolean imgUpdate=false;
int fps_camera=12;
BImage videobuffer;
int r1,g1,b1;
int timeblurstep=24; // set the speed of the fade
int pstepper=timeblurstep-1;
void setup()
{
size(352, 288);
beginVideo(width, height, fps_camera);
videobuffer = new BImage(width, height);
}
public void videoEvent()
{
imgUpdate=true;
}
void loop()
{
if (imgUpdate==true)
{
for(int i=0; i<width*height; i++)
{
r1=((((videobuffer.pixels[i] >> 16) & 0xff)* pstepper) + ((video.pixels[i] >> 16) & 0xff))/timeblurstep;
g1=((((videobuffer.pixels[i] >> 8) & 0xff)*pstepper)+ ((video.pixels[i] >> 8) & 0xff))/timeblurstep;
b1=(((videobuffer.pixels[i] & 0xff)* pstepper)+ (video.pixels[i] & 0xff))/timeblurstep;
videobuffer.pixels[i] = ( (0xff<<24) | ( r1 << 16) | ( g1 << 8) | b1);
}
image(videobuffer, 0, 0, width, height);
imgUpdate=false;
}
//just add a little delay so the system can handle other stuff as well
delay(20);
}
|
|
I realy would like to; setting up a camera and screen in a busy street-window, were loads of people walking by and traffic is rushing, people that who stand still to watch this piece, suddenly will slowly show up in this 'frozen' enviroment.
|
|
|
|
|
arielm
|
Re: timeblind - camera works
« Reply #1 on: Dec 22nd, 2003, 4:26pm » |
|
hey elout,
i started today with a webcam, and enjoyed to play with your ready-made piece of code!
one interesting finding: within loop(), if you remove
Code:| image(videobuffer, 0, 0, width, height) |
|
and replace it with
Code:| pixels = videobuffer.pixels |
|
it does the job, and you save one full-screen "blit"!
|
Ariel Malka | www.chronotext.org
|
|
|
whiteflea
|
Re: timeblind - camera works
« Reply #2 on: Jan 9th, 2004, 4:32pm » |
|
i played around with REAS example:
http://www.proce55ing.net/learning/examples/camera.html
it takes mouseX for the alpha value. Looks like I did the same effect.....
Code:
int xpos = 0;
int ypos = 0;
boolean newFrame = false;
void setup()
{
size(400, 300);
beginVideo(400, 300, 30);
colorMode(RGB,width);
}
void videoEvent()
{
newFrame = true;
}
void loop()
{
if(newFrame) {
xpos = 0;
ypos = 0;
tint(400,mouseX);
image(video, xpos, ypos);
newFrame = false;
}
}
|
|
cu
whiteflea
I LOVE PROCESSING!
|
==================================
Software is mindcontrol - get some
==================================
Shut up or I will replace you with
a very small processing script
|
|
|
|
