private void SaveAsRaw(int size, int channels, string fileName, RenderTexture rtex)
{
ComputeBuffer buffer = new ComputeBuffer(size, sizeof(float) * channels);
CBUtility.ReadFromRenderTexture(rtex, channels, buffer, m_readData);
float[] data = new float[size * channels];
buffer.GetData(data);
byte[] byteArray = new byte[size * 4 * channels];
System.Buffer.BlockCopy(data, 0, byteArray, 0, byteArray.Length);
System.IO.File.WriteAllBytes(Application.dataPath + m_filePath + fileName + ".raw", byteArray);
buffer.Release();
}
private void SaveAs8bit(int width, int height, int channels, string fileName, RenderTexture rtex, float scale = 1.0f)
{
//Only used to get a visible image for debugging.
ComputeBuffer buffer = new ComputeBuffer(width * height, sizeof(float) * channels);
CBUtility.ReadFromRenderTexture(rtex, channels, buffer, m_readData);
float[] data = new float[width * height * channels];
buffer.GetData(data);
Texture2D tex = new Texture2D(width, height);
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
Color col = new Color(0, 0, 0, 1);
col.r = data[(x + y * width) * channels + 0];
if (channels > 1)
{
col.g = data[(x + y * width) * channels + 1];
}
if (channels > 2)
{
col.b = data[(x + y * width) * channels + 2];
}
tex.SetPixel(x, y, col * scale);
}
}
tex.Apply();
byte[] bytes = tex.EncodeToPNG();
System.IO.File.WriteAllBytes(Application.dataPath + m_filePath + fileName + ".png", bytes);
buffer.Release();
}