public RayMarchInfo March(Field field)
{
RayMarchInfo info = new RayMarchInfo {
ray = this.ray,
distance = float.PositiveInfinity,
rayLength = 0.0f,
raySteps = 0
};
Vector3 rayPoint = ray.origin;
while (info.raySteps < maxRaySteps && info.rayLength < maxRayLength)
{
info.raySteps++;
float distance = field.distance(rayPoint);
if (info.distance > distance)
{
info.deepestPoint = rayPoint;
}
info.distance = Mathf.Min(distance, info.distance);
float marchDistance = Mathf.Clamp(distance, minRayMarch, maxRayMarch);
rayPoint += marchDistance * ray.direction;
info.rayLength += marchDistance;
}
info.deepestSurfacePoint = field.closestPoint(info.deepestPoint);
return(info);
}
public override float distanceToField(Field field)
{
rayMarch.ray.origin = transform.position;
rayMarch.ray.direction = transform.forward;
rayMarchInfo = rayMarch.March(field);
return(rayMarchInfo.distance);
}