Datasheet
opc = new OPC(this, "127.0.0.1", 7890);
opc.ledGrid8x8(0, width/2, height/2, height / 16.0, 0, false);
}
void drawRing(float x, float y, float hue, float intensity, float size) {
blendMode(ADD);
tint(hue, 50, intensity);
image(texture, x - size/2, y - size/2, size, size);
}
void draw()
{
background(0);
drawRing(mouseX, mouseY, 25, 80, 400);
}
You might also notice a little bit of flicker at the edges, where the LEDs that are just barely
on rapidly flick between on and off. This is a side-effect of Fadecandy's temporal dithering
algorithm. This is how it can simulate brightness levels that are dimmer than the dimmest
level the WS2811 controller supports in hardware. The flicker can be distracting when
you're looking very closely at the LEDs, but if you're using a diffuser or you're using the
LEDs as a light source for your art, this flicker is almost never noticeable.
If you do find the flicker bothersome, you can change the fcserver color management
configuration. The documentation (http://adafru.it/cW7) describes how you can reconfigure
the color correction curves to have a linear section at the dark end, which completely
eliminates this flicker at the cost of reduced accuracy in rendering very dark colors.
© Adafruit Industries https://learn.adafruit.com/led-art-with-fadecandy Page 52 of 60










