// Update is called once per frame
void Update()
{
if (_mesh == null)
{
return;
}
//仮
if (Input.GetKeyDown(KeyCode.W))
{
_isConstantWidth = !_isConstantWidth;
}
_mouse.Update();
int num = _mesh.vertexCount / 2;//頂点の数、最大数
//if( _mouse.positions.Count<=num)return;
if (_mouse.GetLength() <= num)
{
return;
}
var forward = Camera.main.transform.forward;
var v = _mesh.vertices;
//長さを調整する
float lenRatio = brushLengthRatio;//0.1f;//0.5f;
int vertNum = Mathf.FloorToInt(num * lenRatio);
for (int i = 0; i < vertNum; i++)
{
var r = 1f - (float)i / (float)(vertNum - 1);
//var rot = _mouse.rotations[i] + _offsetRot*Mathf.Deg2Rad;
var pos = _mouse.GetPoint(i);//_mouse.positions[i];
//random値を追加
//pos.x += 0.3f * (Random.value - 0.5f);
//pos.y += 0.3f * (Random.value - 0.5f);
//ブラシの太さ、瞬間の速度で太さが変えている
var vv = _mouse.velocity.magnitude * 8f;
if (vv > 1f)
{
vv = 1f;
}
var w = vv * _brushWidth * Mathf.Sin(r * Mathf.PI) * brushWidthRatio;
//一定かどうか
if (_isConstantWidth)
{
w = _brushWidth * brushWidthRatio;
}
//奇跡の方向
Vector3 current = _mouse.GetPoint(i); //_mouse.positions[ i ];
Vector3 next = _mouse.GetPoint(i + 1); //_mouse.positions[ i+1 ];
Vector3 dir = current - next;
if (_isNejireFix)
{
dir.x = Mathf.Abs(dir.x);
dir.y = Mathf.Abs(dir.y);
dir.z = Mathf.Abs(dir.z);
}
//カメラの正面ベクトルと、方向ベクトルに直行するベクトルを取得
var dir1 = Vector3.Cross(forward, dir).normalized;
var dir2 = -Vector3.Cross(forward, dir).normalized;
Vector3 v1 = dir1 * w;
Vector3 v2 = dir2 * w;
//ちょっとねじれないように処理を入れてみるテスト
//var yy1 = pos.y + v1.y;//,pos.y + v2.y );
//var yy2 = pos.y + v2.y;
//if(isNejireFix){
// yy1 = Mathf.Min( pos.y + v1.y,pos.y + v2.y );
// yy2 = Mathf.Max( pos.y + v1.y,pos.y + v2.y );
//}
//長さを
v[i + 0].x = pos.x + v1.x;
v[i + 0].y = pos.y + v1.y;
v[i + 0].z = pos.z + v1.z;
v[i + num].x = pos.x + v2.x;
v[i + num].y = pos.y + v2.y;
v[i + num].z = pos.z + v2.z;
}
if (isBoxel)
{
for (int i = 0; i < num; i++)
{
//if( i<num*0.5f ){
var boxel = _boxel * (1f - brushWidthRatio); // * (1f+_mouse.velocity.magnitude*30f);//0.5f;
var nobasu = _mouse.velocity.magnitude * 30f + 1f;
v[i + 0].x = Mathf.Floor(v[i + 0].x * boxel) / boxel;
v[i + 0].y = Mathf.Floor(v[i + 0].y * boxel) / boxel;
v[i + 0].z = Mathf.Floor(v[i + 0].z * boxel) / boxel;
v[i + num].x = (Mathf.Ceil(v[i + num].x * boxel)) / boxel;
v[i + num].y = (Mathf.Ceil(v[i + num].y * boxel)) / boxel;
v[i + num].z = (Mathf.Ceil(v[i + num].z * boxel)) / boxel;
//v[i+num].z = v[i+0].z;//(Mathf.Ceil( v[i+num].z * boxel ) ) / boxel;
//}
}
}
//消す
var lastPos = _mouse.GetPoint(vertNum - 2);// _mouse.positions[vertNum-2];
for (int i = vertNum - 1; i < num; i++)
{
var pos = lastPos;
v[i + 0].x = pos.x;
v[i + 0].y = pos.y;
v[i + 0].z = pos.z;
v[i + num].x = pos.x;
v[i + num].y = pos.y;
v[i + num].z = pos.z;
}
_zRad += _zRadSpd;
_mesh.vertices = v;
if (_frame % 2 == 0 && !isBoxel)
{
_mesh.RecalculateNormals();
_mesh.RecalculateTangents();
}
int idx = 0;//Mathf.FloorToInt(v.Length/2f);
screenPos = RectTransformUtility.WorldToScreenPoint(Camera.main, v[idx]);
screenPos.x /= Screen.width;
screenPos.y /= Screen.height;
//色の取得
Color col = Color.red;
if (colorTex)
{
/*
* var ww = colorTex.width;
* var hh = colorTex.height;
* col = colorTex.GetPixel(
* Mathf.FloorToInt( screenPos.x * ww * 0.999f ),
* Mathf.FloorToInt( screenPos.y * hh * 0.999f )
* );
* col.a = 0.5f;//_alpha;
*/
_property.SetTexture("_ColorTex", colorTex);
}
_property.SetVector("_Color", col);
_property.SetVector("_EmissionColor", col * 0.5f);//暗くなりすぎないように
_renderer.SetPropertyBlock(_property);
_frame++;
}
