ImageConversion.LoadImage

参数

返回

bool 如果可以加载数据，则返回 true，否则返回 false。

描述

将 PNG/JPG 图像字节数组加载到纹理中。

该函数使用新图像数据替换纹理内容。调用 LoadImage 后， 纹理的大小和格式可能会更改。JPG 文件加载为 RGB24 格式， PNG 文件加载为 RGBA32 格式。如果调用 LoadImage 前的纹理格式为 DXT1 或 DXT5， 则对加载的图像进行 DXT 压缩（对于 JPG 图像，使用 DXT1；对于 PNG 图像，使用 DXT5）。 如果平台无法执行运行时压缩，则返回 false。

纹理将自动上传到 GPU；没有必要调用 Apply。

using UnityEngine;

public class ExampleClass : MonoBehaviour
{
    // Load a .jpg or .png file by adding .bytes extensions to the file
    // and dragging it on the imageAsset variable.
    public TextAsset imageAsset;
    public void Start()
    {
        // Create a texture. Texture size does not matter, since
        // LoadImage will replace with with incoming image size.
        Texture2D tex = new Texture2D(2, 2);
        tex.LoadImage(imageAsset.bytes);
        GetComponent<Renderer>().material.mainTexture = tex;
    }
}

另请参阅：EncodeToPNG、EncodeToJPG、LoadRawTextureData 函数。

using UnityEngine;

public class ExampleScript : MonoBehaviour
{
    public void Start()
    {
        // Create a texture. Texture size does not matter, since
        // LoadImage will replace with with incoming image size.
        var tex = new Texture2D(2, 2);
        // A small 64x64 Unity logo encoded into a PNG.
        var pngBytes = new byte[] {
            0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D, 0x49, 0x48, 0x44, 0x52,
            0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x40, 0x08, 0x00, 0x00, 0x00, 0x00, 0x8F, 0x02, 0x2E,
            0x02, 0x00, 0x00, 0x01, 0x57, 0x49, 0x44, 0x41, 0x54, 0x78, 0x01, 0xA5, 0x57, 0xD1, 0xAD, 0xC4,
            0x30, 0x08, 0x83, 0x81, 0x32, 0x4A, 0x66, 0xC9, 0x36, 0x99, 0x85, 0x45, 0xBC, 0x4E, 0x74, 0xBD,
            0x8F, 0x9E, 0x5B, 0xD4, 0xE8, 0xF1, 0x6A, 0x7F, 0xDD, 0x29, 0xB2, 0x55, 0x0C, 0x24, 0x60, 0xEB,
            0x0D, 0x30, 0xE7, 0xF9, 0xF3, 0x85, 0x40, 0x74, 0x3F, 0xF0, 0x52, 0x00, 0xC3, 0x0F, 0xBC, 0x14,
            0xC0, 0xF4, 0x0B, 0xF0, 0x3F, 0x01, 0x44, 0xF3, 0x3B, 0x3A, 0x05, 0x8A, 0x41, 0x67, 0x14, 0x05,
            0x18, 0x74, 0x06, 0x4A, 0x02, 0xBE, 0x47, 0x54, 0x04, 0x86, 0xEF, 0xD1, 0x0A, 0x02, 0xF0, 0x84,
            0xD9, 0x9D, 0x28, 0x08, 0xDC, 0x9C, 0x1F, 0x48, 0x21, 0xE1, 0x4F, 0x01, 0xDC, 0xC9, 0x07, 0xC2,
            0x2F, 0x98, 0x49, 0x60, 0xE7, 0x60, 0xC7, 0xCE, 0xD3, 0x9D, 0x00, 0x22, 0x02, 0x07, 0xFA, 0x41,
            0x8E, 0x27, 0x4F, 0x31, 0x37, 0x02, 0xF9, 0xC3, 0xF1, 0x7C, 0xD2, 0x16, 0x2E, 0xE7, 0xB6, 0xE5,
            0xB7, 0x9D, 0xA7, 0xBF, 0x50, 0x06, 0x05, 0x4A, 0x7C, 0xD0, 0x3B, 0x4A, 0x2D, 0x2B, 0xF3, 0x97,
            0x93, 0x35, 0x77, 0x02, 0xB8, 0x3A, 0x9C, 0x30, 0x2F, 0x81, 0x83, 0xD5, 0x6C, 0x55, 0xFE, 0xBA,
            0x7D, 0x19, 0x5B, 0xDA, 0xAA, 0xFC, 0xCE, 0x0F, 0xE0, 0xBF, 0x53, 0xA0, 0xC0, 0x07, 0x8D, 0xFF,
            0x82, 0x89, 0xB4, 0x1A, 0x7F, 0xE5, 0xA3, 0x5F, 0x46, 0xAC, 0xC6, 0x0F, 0xBA, 0x96, 0x1C, 0xB1,
            0x12, 0x7F, 0xE5, 0x33, 0x26, 0xD2, 0x4A, 0xFC, 0x41, 0x07, 0xB3, 0x09, 0x56, 0xE1, 0xE3, 0xA1,
            0xB8, 0xCE, 0x3C, 0x5A, 0x81, 0xBF, 0xDA, 0x43, 0x73, 0x75, 0xA6, 0x71, 0xDB, 0x7F, 0x0F, 0x29,
            0x24, 0x82, 0x95, 0x08, 0xAF, 0x21, 0xC9, 0x9E, 0xBD, 0x50, 0xE6, 0x47, 0x12, 0x38, 0xEF, 0x03,
            0x78, 0x11, 0x2B, 0x61, 0xB4, 0xA5, 0x0B, 0xE8, 0x21, 0xE8, 0x26, 0xEA, 0x69, 0xAC, 0x17, 0x12,
            0x0F, 0x73, 0x21, 0x29, 0xA5, 0x2C, 0x37, 0x93, 0xDE, 0xCE, 0xFA, 0x85, 0xA2, 0x5F, 0x69, 0xFA,
            0xA5, 0xAA, 0x5F, 0xEB, 0xFA, 0xC3, 0xA2, 0x3F, 0x6D, 0xFA, 0xE3, 0xAA, 0x3F, 0xEF, 0xFA, 0x80,
            0xA1, 0x8F, 0x38, 0x04, 0xE2, 0x8B, 0xD7, 0x43, 0x96, 0x3E, 0xE6, 0xE9, 0x83, 0x26, 0xE1, 0xC2,
            0xA8, 0x2B, 0x0C, 0xDB, 0xC2, 0xB8, 0x2F, 0x2C, 0x1C, 0xC2, 0xCA, 0x23, 0x2D, 0x5D, 0xFA, 0xDA,
            0xA7, 0x2F, 0x9E, 0xFA, 0xEA, 0xAB, 0x2F, 0xDF, 0xF2, 0xFA, 0xFF, 0x01, 0x1A, 0x18, 0x53, 0x83,
            0xC1, 0x4E, 0x14, 0x1B, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4E, 0x44, 0xAE, 0x42, 0x60, 0x82,
        };
        // Load data into the texture.
        tex.LoadImage(pngBytes);
        // Assign texture to renderer's material.
        GetComponent<Renderer>().material.mainTexture = tex;
    }
}