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Texture2D.LoadRawTextureData

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public void LoadRawTextureData(byte[] data);
public void LoadRawTextureData(NativeArray<T> data);
public void LoadRawTextureData(IntPtr data, int size);

Parameters

dataRaw data array to initialize texture pixels with.
sizeSize of data in bytes.

Description

Fills texture pixels with raw preformatted data.

This function fills texture pixel memory with raw data. This is mostly useful for loading compressed texture format data into a texture.

Passed data should be of required size to fill the whole texture according to its width, height, data format and mipmapCount; otherwise a UnityException is thrown. Mipmaps are laid out in memory starting from largest, with smaller mip level data immediately following. For example, a 16x8 texture of RGBA32 format with no mipmaps can be filled with a 512-byte array (16x8x4).

For runtime texture generation, it is also possible to directly write into texture data via GetRawTextureData that returns a Unity.Collections.NativeArray. This can be faster since it avoids a memory copy that LoadRawTextureData would do.

Call Apply after setting image data to actually upload it to the GPU.

See Also: SetPixels, SetPixels32, LoadImage, Apply, GetRawTextureData.

using UnityEngine;

public class ExampleScript : MonoBehaviour { public void Start() { // Create a 16x16 texture with PVRTC RGBA4 format // and fill 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; } }

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