public static void SaveAsRaw(int size, CBUtility.Channels channels, string fileName, string filePath, RenderTexture rtex, ComputeShader readDataComputeShader)
{
var channelsSize = (byte)channels;
var buffer = new ComputeBuffer(size, sizeof(float) * channelsSize);
CBUtility.ReadFromRenderTexture(rtex, channels, buffer, readDataComputeShader);
var data = new float[size * channelsSize];
buffer.GetData(data);
var byteArray = new byte[size * 4 * channelsSize];
Buffer.BlockCopy(data, 0, byteArray, 0, byteArray.Length);
File.WriteAllBytes(Application.dataPath + filePath + fileName + ".raw", byteArray);
buffer.Release();
}
public static void SaveAs8bit(int width, int height, CBUtility.Channels channels, string fileName, string filePath, RenderTexture rtex, ComputeShader readDataComputeShader, float scale = 1.0f)
{
var channelsSize = (byte)channels;
var buffer = new ComputeBuffer(width * height, sizeof(float) * channelsSize);
CBUtility.ReadFromRenderTexture(rtex, channels, buffer, readDataComputeShader);
var data = new float[width * height * channelsSize];
buffer.GetData(data);
var texture = new Texture2D(width, height);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
var color = new Color(0, 0, 0, 1);
color.r = data[(x + y * width) * channelsSize + 0];
if (channelsSize > 1)
{
color.g = data[(x + y * width) * channelsSize + 1];
}
if (channelsSize > 2)
{
color.b = data[(x + y * width) * channelsSize + 2];
}
texture.SetPixel(x, y, color * scale);
}
}
texture.Apply();
var bytes = texture.EncodeToPNG();
File.WriteAllBytes(Application.dataPath + filePath + fileName + ".png", bytes);
buffer.Release();
}