Texture2D.LoadRawTextureData

参数

描述

使用原始预格式化数据填充纹理像素。

该函数使用原始数据填充纹理像素内存。对于将压缩纹理格式数据加载到纹理中的情况，该函数非常有用。

Passed data should be of required size to fill the whole texture according to its width, height, data format and mipmapCount. Mipmaps are laid out in memory starting from largest, with smaller mip level data immediately following.

例如，对于没有多级渐进纹理的 RGBA32 格式的 16x8 纹理，可以使用 512 字节数组 (16x8x4) 进行填充。

设置图像数据后，调用 Apply 会将其实际上传到 GPU。

另请参阅：SetPixels、SetPixels32、LoadImage、Apply。

using UnityEngine;

public class ExampleScript : MonoBehaviour
{
    public void Start()
    {
        // Create a 16x16 texture with PVRTC RGBA4 format
        // and will it with raw PVRTC bytes.
        Texture2D tex = new Texture2D(16, 16, TextureFormat.PVRTC_RGBA4, false);
        // Raw PVRTC4 data for a 16x16 texture. This format is four bits
        // per pixel, so data should be 16*16/2=128 bytes in size.
        // Texture that is encoded here is mostly green with some angular
        // blue and red lines.
        byte[] pvrtcBytes = new byte[] {
            0x30, 0x32, 0x32, 0x32, 0xe7, 0x30, 0xaa, 0x7f, 0x32, 0x32, 0x32, 0x32, 0xf9, 0x40, 0xbc, 0x7f,
            0x03, 0x03, 0x03, 0x03, 0xf6, 0x30, 0x02, 0x05, 0x03, 0x03, 0x03, 0x03, 0xf4, 0x30, 0x03, 0x06,
            0x32, 0x32, 0x32, 0x32, 0xf7, 0x40, 0xaa, 0x7f, 0x32, 0xf2, 0x02, 0xa8, 0xe7, 0x30, 0xff, 0xff,
            0x03, 0x03, 0x03, 0xff, 0xe6, 0x40, 0x00, 0x0f, 0x00, 0xff, 0x00, 0xaa, 0xe9, 0x40, 0x9f, 0xff,
            0x5b, 0x03, 0x03, 0x03, 0xca, 0x6a, 0x0f, 0x30, 0x03, 0x03, 0x03, 0xff, 0xca, 0x68, 0x0f, 0x30,
            0xaa, 0x94, 0x90, 0x40, 0xba, 0x5b, 0xaf, 0x68, 0x40, 0x00, 0x00, 0xff, 0xca, 0x58, 0x0f, 0x20,
            0x00, 0x00, 0x00, 0xff, 0xe6, 0x40, 0x01, 0x2c, 0x00, 0xff, 0x00, 0xaa, 0xdb, 0x41, 0xff, 0xff,
            0x00, 0x00, 0x00, 0xff, 0xe8, 0x40, 0x01, 0x1c, 0x00, 0xff, 0x00, 0xaa, 0xbb, 0x40, 0xff, 0xff,
        };
        // Load data into the texture and upload it to the GPU.
        tex.LoadRawTextureData(pvrtcBytes);
        tex.Apply();
        // Assign texture to renderer's material.
        GetComponent<Renderer>().material.mainTexture = tex;
    }
}