Version: 2022.3
言語: 日本語
public Color GetPixel (int x, int y, int mipLevel= 0);

パラメーター

x The x coordinate of the pixel to get. The range is 0 through (texture width - 1).
y The y coordinate of the pixel to get. The range is 0 through (texture height - 1).
mipLevel The mipmap level to sample. The range is 0 through the texture's Texture.mipmapCount. The default value is 0.

戻り値

Color The pixel color.

説明

Gets the pixel color at coordinates (x, y).

This method gets pixel data from the texture in CPU memory. Texture.isReadable must be true.

The lower left corner is (0, 0). If the pixel coordinate is outside the texture's dimensions, Unity clamps or repeats it, depending on the texture's TextureWrapMode.

GetPixel might be slower than some other texture methods because it converts the format the texture uses into Color. GetPixel also needs to decompress compressed textures, and use memory to store the decompressed area. To get pixel data more quickly, use GetPixelData instead.

If you need to get a large block of pixels, it might be faster to use GetPixels32 or GetPixels.

You can't use GetPixel with textures that use Crunch texture compression.

See Also: GetPixels32, GetPixels, SetPixel, GetPixelBilinear.

// Sets the y coordinate of the transform to follow a heightmap

using UnityEngine; using System.Collections;

public class ExampleClass : MonoBehaviour { public Texture2D heightmap; public Vector3 size = new Vector3(100, 10, 100);

void Update() { int x = Mathf.FloorToInt(transform.position.x / size.x * heightmap.width); int z = Mathf.FloorToInt(transform.position.z / size.z * heightmap.height); Vector3 pos = transform.position; pos.y = heightmap.GetPixel(x, z).grayscale * size.y; transform.position = pos; } }
Copyright © 2023 Unity Technologies
优美缔软件(上海)有限公司 版权所有
"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。
公安部备案号:
31010902002961