Unity Texture2D缩放

    Texture2D ScaleTexture(Texture2D source, int targetWidth, int targetHeight)
    {
        Texture2D result = new Texture2D(targetWidth, targetHeight, source.format, false);

        float incX = (1.0f / (float)targetWidth);
        float incY = (1.0f / (float)targetHeight);

        for (int i = 0; i < result.height; ++i)
        {
            for (int j = 0; j < result.width; ++j)
            {
                Color newColor = source.GetPixelBilinear((float)j / (float)result.width, (float)i / (float)result.height);
                result.SetPixel(j, i, newColor);
            }
        }

        result.Apply();
        return result;
    }