public override VStructure CreateStructure(Matrix4x4 toWorld)
{
var s = new VStructure();
var position = toWorld.MultiplyPoint3x4(Vector2.zero);
var angle = 90f * Mathf.Deg2Rad;
var origin = s.AddParticle(position, 0.5f);
var next = MakeBranch(s, _maxDepth, origin, origin, position, angle, _baseLength);
s.AddAfterStep(new VPin(origin, s.GetParticlePosition(origin)));
s.AddAfterStep(new VPin(next, s.GetParticlePosition(next)));
return(s);
}
public override VStructure CreateStructure(Matrix4x4 toWorld)
{
var s = new VStructure();
// まずは使用する座標のリストを作成
var positions = new Vector2[_mainBranchResolution];
Vector2 position = new Vector2(0f, 0f);
positions[0] = toWorld.MultiplyPoint3x4(position);
float length = baseLength;
float angle = baseAngle;
for (var i = 1; i < _mainBranchResolution; ++i)
{
var t = (float)i / _mainBranchResolution;
var lengthMultiplier = _mainBranchLengthMultiplierhCurve.Evaluate(t);
var deltaAngle = (_inverseMainBranchDeltaAngle ? -1 : 1) * _mainBranchDeltaAngleCurve.Evaluate(t);
length = baseLength * lengthMultiplier;
angle += deltaAngle;
position += Utilities.Angle2Vector(angle * Mathf.Deg2Rad) * length;
positions[i] = toWorld.MultiplyPoint3x4(position);
}
// 座標を元にパーティクルとエッジを追加
for (var i = 0; i < positions.Length; ++i)
{
var t = (float)i / positions.Length;
s.AddParticle(
positions[i],
_baseLeafSize * _leafSizeMultiplierCurve.Evaluate(t),
_leafGradient.Evaluate(Random.Range(0f, 1f))
);
}
// エッジの作成
for (var i = 1; i < positions.Length; ++i)
{
s.AddEdge(i - 1, i, _mainBranchWidth, _mainBranchGradient.Evaluate(Random.Range(0f, 1f)));
// サポートの作成
for (var j = 0; j < _supportEdges.Length; ++j)
{
var t = _supportEdges[j];
if (i >= t.supportInterval)
{
s.AddEdge(i - t.supportInterval, i, t.supportWidth, _mainBranchGradient.Evaluate(Random.Range(0f, 1f)));
}
}
}
// 根本をピンどめ
s.AddAfterStep(new VPin(0, positions[0]));
s.AddAfterStep(new VPin(1, positions[1]));
return(s);
}