OGRE EXCEPTION(3:RenderingAPIException):

CodeKrash

02-01-2011 10:10:39

05:01:37: Can't assign material Material to SubEntity of drone because this Material does not exist. Have you forgotten to define it in a .material script?

05:03:49: OGRE EXCEPTION(3:RenderingAPIException): Error beginning frame :Invalid call in D3D9RenderSystem::_beginFrame at ..\..\..\ogre\RenderSystems\Direct3D9\src\OgreD3D9RenderSystem.cpp (line 2823)

it happens after updating a loaded MeshPtr and SkeletonPtr, and renderoneframe is called. here is my main loop:

#region Primary Loop

                    while (!OgreWindow.Instance.ShuttingDown)

                    {

                        if (object.Equals(null, OgreWindow.Instance.mRoot)) break;

                        b = true;

                        loops = 0;

                        while (DateTime.Now.Ticks > next_game_tick && loops < MAX_FRAMESKIP)

                        {

                            update();

                            next_game_tick += SKIP_TICKS;

                            loops++;

                        }

                        interpolation = (float)(DateTime.Now.Ticks + SKIP_TICKS - next_game_tick) / (float)(SKIP_TICKS);

                        ExtraMegaBlob.References.Math.clamp_hi(1f, ref interpolation);

                        if (!OgreWindow.Instance.pauserendering)

                        {

                            OgreWindow.Instance.renderingframe = true;

                            b = OgreWindow.Instance.mRoot.RenderOneFrame();

                            OgreWindow.Instance.renderingframe = false;

                        }

                        if (!b) break;

                        OgreWindow.Instance.doEvents();

                    }

                    #endregion

does anyone know what could be causing this?