Question

UNITY C#如何将颜色渐变循环

我想做一个七种颜色渐变的灯光效果，那么一种的渐变效果我做出来了
但颜色到了[1]如何再渐变到[2] 以此类推呢？求方法

public Color[] colorstar；
void Update () {

float colorlerp = Mathf.MoveTowards (0, 1,0.1f * Time.time);
Lightcolor.color = Color.Lerp (colorstar[0],colorstar[1], colorlerp);
}

Answer 1

//说明：RGB为光的红绿蓝三原色，(每一种颜色范围0~255)通过改变三种颜色的比例即可调出各种颜色
private void btn_Color_Click(object sender, EventArgs e)
        {
            Thread t = new Thread(Update);
            t.IsBackground = true;
            t.Start();
        }
        new void Update()
        {
            int i = 0, j = 100, k = 100;
            //变红
            for (i=100; i<255; i = i + 5)
            {
                Color c = Color.FromArgb(i, j, k);
                label4.BackColor = c;
                Thread.Sleep(100);
            }
            //变绿
            for (j =100; j < 255; j += 5)
            {
                i = 100; k = 100;
                Color c = Color.FromArgb(i, j, k);
                label4.BackColor = c;
                Thread.Sleep(100);
            }
            //变蓝
            for (k = 100; k < 255; k += 5)
            {
                i = 100; j = 100;
                Color c = Color.FromArgb(i, j, k);
                label4.BackColor = c;
                Thread.Sleep(100);
            }
            MessageBox.Show("色彩展示1完毕");
            //彩虹渐变
            for (i = 0; i < 125;i++ )
            {
                Color c = Color.FromArgb(255-2*i, i, 2*i);
                label4.BackColor = c;
                Thread.Sleep(200);
            }
            MessageBox.Show("色彩展示2完毕");
        }

Answer 2

//说明：RGB为光的红绿蓝三原色，(每一种颜色范围0~255)通过改变三种颜色的比例即可调出各种颜色
private void btn_Color_Click(object sender, EventArgs e)
{
Thread t = new Thread(Update);
t.IsBackground = true;
t.Start();
}
new void Update()
{
int i = 0, j = 100, k = 100;
//变红
for (i=100; i<255; i = i + 5)
{
Color c = Color.FromArgb(i, j, k);
label4.BackColor = c;
Thread.Sleep(100);
}
//变绿
for (j =100; j < 255; j += 5)
{
i = 100; k = 100;
Color c = Color.FromArgb(i, j, k);
label4.BackColor = c;
Thread.Sleep(100);
}
//变蓝
for (k = 100; k < 255; k += 5)
{
i = 100; j = 100;
Color c = Color.FromArgb(i, j, k);
label4.BackColor = c;
Thread.Sleep(100);
}
MessageBox.Show("色彩展示1完毕");
//彩虹渐变
for (i = 0; i < 125;i++ )
{
Color c = Color.FromArgb(255-2*i, i, 2*i);
label4.BackColor = c;
Thread.Sleep(200);
}
MessageBox.Show("色彩展示2完毕");
}