public CrossSection(int nPoints)
{
ellipse = new Vector2[nPoints];
float w = width / 2f;
float h = height / 2f;
float arc = 360f / (nPoints - 1);
for (int i = 0; i < nPoints; i++)
{
float t = (360f - i * arc) * Mathf.Deg2Rad;
ellipse[i] = new Vector3(w * Mathf.Cos(t), h * Mathf.Sin(t));
}
if (animationEnabled)
{
// Noise should scale with size.
// noiseScale = 1 for a 16 x 9 ellipse.
noiseScale = (width * height) / 144f;
w += width * distrMargin;
h += height * distrMargin;
attractors = new Attractor[] {
new Attractor(-w, w, h, 0f, distrMinIncr, distrMaxIncr),
new Attractor(-w, w, 0f, -h, distrMinIncr, distrMaxIncr),
new Attractor(-w, 0f, -h, h, distrMinIncr, distrMaxIncr),
new Attractor(0f, w, -h, h, distrMinIncr, distrMaxIncr),
new Attractor(-w, w, -h, h, distrMinIncr, distrMaxIncr)
};
cNoiseOsc = new Oscillator(noiseMinIncr, noiseMaxIncr);
fNoiseOsc = new Oscillator(noiseMinIncr, noiseMaxIncr);
}
}
public Attractor(float x1, float x2,
float y1, float y2,
float minIncr, float maxIncr)
{
osc = new Oscillator(minIncr, maxIncr);
bounds = new Rect(x1, y1, x2 - x1, y2 - y1);
posNext = bounds.center;
}
public Path(float ringWidth)
{
position = new Vector3(0f, 0f, ringWidth * -2f);
direction = Vector3.forward;
step = direction * ringWidth;
if (curvatureEnabled)
{
hCurveOsc = new Oscillator(hCurveMinIncr, hCurveMaxIncr);
vCurveOsc = new Oscillator(vCurveMinIncr, vCurveMaxIncr);
}
}
private void AnimateSharedMaterial()
{
if (material == null)
{
if (chunkCount > 0)
{
lumOsc = new Oscillator(300f, 400f);
material = transform.GetChild(0).GetComponent <Renderer>().sharedMaterial;
}
}
else
{
if (!lumOsc.MoveNext())
{
lumPrev = lumNext;
lumNext = Random.Range(-0.4f, 0.4f);
}
lum = Mathf.Lerp(lumPrev, lumNext, lumOsc.Current);
material.color = Color.HSVToRGB(0.085f, 0.3f, 0.4f + lum);
material.SetFloat("_Glossiness", 0.4f - lum);
material.SetFloat("_Metallic", 0.5f - lum * 0.5f);
}
}