I’m working on this page:
And I try to get Exponential Impulse to work:
Exponential Impulse
Great for triggering behaviours or making envelopes for music or animation, and for anything that grows fast and then slowly decays. Use k to control the stretching of the function. Btw, its maximum, which is 1, happens at exactly x = 1/k.
float expImpulse( float k, float x ) {
const float h = k*x;
return h*exp(1.0-h);
}
This is what I have, but it is all being zero.
void setup() {
size(600, 600, P2D);
}
void draw() {
background(0);
stroke(255);
for (int x = 0; x < width; x++) {
float y = expImpulse(norm(mouseX, 0, width), x);
}
}
float expImpulse( float k, float x ) {
float h = k*x;
return h*exp(1.0-h);
}
Can someone help?