public static uint LoadTex(string file) { Bitmap bitmap = new Bitmap(file); if (!Misc.IsPowerOf2(bitmap.Width) || !Misc.IsPowerOf2(bitmap.Height)) { // FormatException isn't really the best here, buuuut... throw new FormatException("Texture sizes must be powers of 2!"); } uint texture; GL.Hint(HintTarget.PerspectiveCorrectionHint, HintMode.Nicest); GL.GenTextures(1, out texture); GL.BindTexture(TextureTarget.Texture2D, texture); BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb); GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0); bitmap.UnlockBits(data); GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear); GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear); return(texture); }