Question

JavaScript => public function SetPixel(x: int, y: int, color: Color): void;
C# => public void SetPixel(int x, int y, Color color);

Description 描述

Sets pixel color at coordinates (x,y).

在坐标（x,y）设置像素的颜色。

Call Apply to actually upload the changed pixels to the graphics card. Uploading is an expensive operation, so you'll want to change as many pixels as possible between Apply calls.

调用Apply实际上将结果以像素为单位更新到显卡上，这是一个代价很高的操作，因此你要在调用 Apply前尽可能多的更改像素

If you're constantly regenerating a texture at runtime, it may be faster to generate an array of pixel colors and set all of them at once with SetPixels.

如果你需要在运行时不断地重新计算纹理，或许生成一个像素颜色组并一次调用 SetPixels 会更快一些

This function works only on ARGB32, RGB24 and Alpha8 texture formats. For other formats SetPixel is ignored. The texture also has to have Read/Write Enabled flag set in the import settings. See Also: SetPixels, GetPixel, Apply.

该函数仅工作于ARGB32、RGB24 和Alpha8格式。其他格式SetPixel忽略。该纹理必须在导入设置启用Read/Write Enabled标识。

JavaScript:

#pragma strict
function Start() {
	var texture: Texture2D = new Texture2D(128, 128);
	GetComponent.<Renderer>().material.mainTexture = texture;
	for (var y: int = 0; y < texture.height; y++) {
		for (var x: int = 0; x < texture.width; x++) {
			var color: Color = ((x & y) != 0 ? Color.white : Color.gray);
			texture.SetPixel(x, y, color);
		}
	}
	texture.Apply();
}

C#:

using UnityEngine;
using System.Collections;
 
public class ExampleClass : MonoBehaviour {
    void Start() {
        Texture2D texture = new Texture2D(128, 128);
        GetComponent<Renderer>().material.mainTexture = texture;
 
        for (int y = 0; y < texture.height; y++) {
            for (int x = 0; x < texture.width; x++) {
                Color color = ((x & y) != 0 ? Color.white : Color.gray);
                texture.SetPixel(x, y, color);
            }
        }
        texture.Apply();
    }
}

Texture2D