Just wondering if there is a way I can load and or create a texture in ogredotnet. I have tried a few angles but I end up at a dead end each time.
I was hoping I can somehow use System.Drawing to create some images and load into a texture for use in an overlay etc.
The proccess may be similar to make images on-fly for aspx pages. You create a dinamyc bmp from file and you will can load to it others images, write text, apply effetcs, write lines from algorithms, etc...
I would doubt that using GDI+ (system.drawing) is a good route to go down, GDI+ plus calls are simply too slow for real-time graphics. I’m not fully enough versed in ODN to give you a comprehensive answer but I would suggest you look at some of the "Render To Texture" articles are Wiki entries (as well as the included example) for some Ideas.
As I understand it this allows you to set a render target for the engine onto the texture and since 2D rendering is possible with ogre, that you generate the texture that way.
Thats about all the help I can give you at the moment, You will have to wait for Rastaman for a more definitive answer, however that said I'll have a play and I would suggest you do the same and see waht you come up with.
Sorry I can't be of more help.
here is a startting place
where it call lock on the pixelbuffer, in OND you will get an IntPtr. Just create a new MemoryDataStream with it, and use the MDS functions to set the buffer. something like this
MemoryDataStream mds = new MemoryDataStream(ptrPixBuff, sizeInBytes, false);
The last false is so that when the MDS Disposes it will not delete the buffer. Use MDS function SetBuffer with a Byte array. I don't really know how you could get a Byte array of the raw image, I haven't used GDI+ stuff that much.
Thankyou Rastaman, that is exactly what was after.
I guess my query should have been titled confusion in the depths of interop.
I was hoping I could use dynamic textures to display sheild/damage levels as a bar level indicator. I am starting out simple just trying to populate a texture array with 255 using Marshal.Copy but I get a stack trace a mile long in mono.
I looked and looked but MDS doesn't seam to have a method SetBuffer perhaps my dlls are out of date but I am using the latest precompled versions.
here is a sample of my code so far.
OgreDotNet.TexturePtr tp= OgreDotNet.TextureManager.GetSingleton().CreateManual("test88",OgreDotNet.ResourceGroupManager.DEFAULT_RESOURCE_GROUP_NAME,
OgreDotNet.HardwarePixelBufferSharedPtr hpb= tp.Get().getBuffer();
OgreDotNet.PixelBox pb= hpb.Get().getCurrentLock();
MemoryDataStream mds = new MemoryDataStream(pb.data, 256*256*4, false);