Switch color has same color c# unity

Questions & Answers
1

Hai, i made some balls (spheres) on unity3d and i changed their color using random color. But, when i run the program, sometimes i got same color on both sphere.

How do i prevent this? Basically when the color already assigned in the object, that color won’t be generated again.

Here is the code that i made for color of the balls (spheres)

public virtual void ColorChanger()
    {
        Color newColor = new Color(Random.value, Random.value, Random.value, 1.0f);
        transform.renderer.material.color = newColor;
    }

and here is the image that show the same color on both balls (spheres)

18277-capture.png

4

Maybe at some point you assign the same material to both spheres?

2

Do they share the same material? Perhaps try having a unique material for each one.

3

Hi Fuhans,

It is highly unlikely, but not impossible to get 2 similar random colors in a row. What you could do is have a List of possible colors that you pick from, removing colors as you go to ensure the same will not be drawn twice. Keep a copy of the List somewhere to restore your pool of colours at will.

Also, random rgb colors aren’t great: they tend to be greyish brownish. Better to use HSV color space, see this awesome post with very much usable code : http://forum.unity3d.com/threads/12031-create-random-colors

5

If your method is overriden, you need to make sure that you call base.ColorChanger() at the beginning of your overriden method and that you don’t change this value after.