I am building one project like GoogleEarth, and create two thread for working, one thread for render and another for update,but the problem is that ,when the update thread building texture from bitmap an exception be throwed : E_OUTOFMEMORY: Ran out of memory (-2147024882) can somebody help me? here is my code: if (texture == null) { using (Bitmap bmp = new Bitmap(256, 256)) using (Graphics g = Graphics.FromImage(bmp)) using (MemoryStream ms = new MemoryStream()) { g.Clear(Color.White); g.DrawRectangle(Pens.Red, 0, 0, 255, 255); g.DrawString(name, GlobalSetting.DebugFont, Brushes.Red, 1, 1); bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png); byte[] buffer = ms.ToArray(); texture = Texture.FromMemory(e.Device, buffer); } }

Have you created your Direct3D9 device with CreateFlags.Multithreaded?

This is a guess, since I'm not familiar with C#, but...

I suspect that Texture.FromMemory expects a in-memory image file, not a stream of bytes as you're giving it. Texture.FromMemory is probably trying to interpret the bytes as a .bmp file, and reading the width and height as some obscenely large number.

thanks for help :)
i created the device with Multithreaded, it works.

He is accessing Direct3D from two different threads

Quote:Original post by zcpzzy... and create two thread for working,
one thread for render and another for update ...

so without thread safty (CreateFlags.Multithreaded) many strange things can happen. Thats at least what I would expect.