private Color EvalFlowVolume(Vector3 center, float radius, Cubic <SpanF> modelPos)
{
float forces = 0.0f;
float forceM = 0.0f;
float chargeE = 0.008f;
float chargeM = 0.014f;
Vector3 flowDir = Vector3.zero;
var centerQ = spanVectorFromUnity(center, radius);
var torqueQ = spanVectorFromUnity(Vector3.zero, 0.0f);
float flowVertRadius = 0.04f;
float flowVertFwdRadius = 0.02f;
var magTorqueCharge = SpanF.exactly(0.021);
if (false)
{
var rv = modelPos.Y.times(SpanF.exactly(2.0));
var rc = SpanAPI.spanColorSignedToRGB(rv);
var clr = new Color(rc.X, rc.Y, rc.Z, 0.9f);
if (PreviousRY != rv.To)
{
Debug.Log("M/G: " + rv + " " + rc.Y);
PreviousRY = rv.To;
}
return(clr);
}
if (true)
{
foreach (var fv in this.CachedFlowVerts)
{
var dist = (fv.Location - center).magnitude;
var oneOverDistSqr = (1.0f / (dist * dist));
var fe = chargeE * oneOverDistSqr;
if (false)
{
var locQ = spanVectorFromUnity(fv.Location, flowVertRadius);
var fQ = spanVectorFromUnity(fv.ForwardDir, flowVertFwdRadius);
var rQ = SpanAPI.spanVectorSubtract(centerQ, locQ);
var cQ = SpanAPI.spanVectorCross(rQ, fQ);
//var cQ = SpanAPI.spanVectorDot(rQ, fQ);
var scQ = magTorqueCharge.times(SpanF.exactly(oneOverDistSqr));
cQ = SpanAPI.spanVectorScale(cQ, scQ);
torqueQ = SpanAPI.spanVectorAdd(torqueQ, cQ);
}
var fm = chargeM * oneOverDistSqr * Vector3.Dot(fv.Location - center, -fv.ForwardDir);
forces += fe;
flowDir += fv.ForwardDir * fe;
//forceM += fm;
}
}
if (false)
{
var torqueMagQ = SpanAPI.spanVectorMagnitude(torqueQ);
var rawVal = torqueMagQ;
Debug.Log("Val = " + rawVal);
//var toColorRangeOffset = SpanAPI.spanExactly (1.0);
var toColorRangeScale = SpanAPI.spanExactly(1.0);
//var rgb = torqueMagQ.add(toColorRangeOffset).times(toColorRangeScale).ToColorRGB ();
var valInRange = rawVal.times(SpanAPI.spanExactly(2.0f / 2.6f)).add(SpanAPI.spanExactly(-1.0f));
var rgb = valInRange.ToColorRGB();
//rgb = new Cubic<float> (0, (float)SpanAPI.spanColorSignedForGreen (valInRange).To, 0);
var alpha = rgb.Y; // Mathf.Max(Mathf.Max(rgb.X,rgb.Y),rgb.Z) * 0.5f;
return(new Color(rgb.X, rgb.Y, rgb.Z, alpha));
}
flowDir.y *= 10.0f;
var yval = Mathf.Clamp01(Mathf.Abs(flowDir.normalized.y));
var dirColor = Color.Lerp(this.ColorX, this.ColorY, yval);
var clearColor = this.ChakraColor;
var fullColor = dirColor; //ColorWithAlpha (dirColor, 1.0f);
return(Color.Lerp(clearColor, fullColor, Mathf.Clamp01(forces)));
}