如何使用Unity和C#从鼠标位置的屏幕捕获颜色? [英] How To Capture the color from screen in mouse position using Unity and C#?

问题描述

我在颜色"部分找不到直接函数，或者因为没有直接的C#Unity函数从后期渲染中拾取颜色.在鼠标位置选择颜色的最佳方法是什么?
我已经进行了研究，看起来可以制作一个屏幕截图，然后查看纹理以计算鼠标位置.

I did not find a direct function in Color section or since there is no direct C# Unity function for picking the color from post render. How is the best approach for picking the color in the mouse position?
I have done research and looks like there is posible to make a screenshot and then look into the texture calculating the mouse position.

Input.GetMouseButtonDown(0)

Application.CaptureScreenshot("Screenshot.png");

// get the color pixel in the same coordinates of the mouse position
Vector3 mouseCoordinates = Input.mousePosition;
myFinalColor = tex.GetPixel((int)mouseCoordinates.x, (int)mouseCoordinates.y);

还是我必须制造第二台相机并将其附加到网格渲染?

Or do I have to make a second camera and attach it to a mesh render?

推荐答案

您只需要使用GetPixel(x,y)

这很简单.

• 将截图保存到Texture2D中，例如MyTexture
• 并添加.GetPixel(x位置的Moue，鼠标的Y位置)

• 将其保存为GetScreenShot的颜色(使您的视图成为Texture2D)
  
  

• Save Screenshot to Texture2D for example MyTexture
• And add .GetPixel( x postion of moue , Y position of mouse )

• Save it to your color for GetScreenShot ( make your View to Texture2D )
  
  

    Color TheColorPicked;
    if (Input.GetMouseButtonDown(0))
    {
        TheColorPicked = MyTexture.GetPixel(Input.mousePosition.x,
                                               Input.mousePosition.y);    
    }

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