Getting the content of multiple renderwindows into variable

[penbo]

Hello,

I'm very new in Ogre, so sorry for bad questions (and sorry for my bad English - it is not related to programming ).

I'm working on a program, that has multiple render windows. Each render window has one viewport and a separate camera.
Now I want to get the content of each window put into accessible memory. I already have a function that can do it for one window. But if I have all windows, it still get only the content of just one of them. I think my problem is that I don't know where does Ogre make those windows.
So can somebody help me where is that? Where should I put my function to catch the contests of all of my windows for every time Ogre renders ?

Thanks

[RigoCL]

Everytime you want to access frame data, you have to use either frameStarted(), frameRenderingQueued() or frameEnded(). Dont know exactly the difference among them, but I have always used the second method.

http://www.ogre3d.org/docs/api/1.9/clas ... tener.html

Hope it helps.

[penbo]

Thanks for the reply!
It helped to start, but I found that the solution for this problem lies a bit deeper in the rendering loop, than those functions.

I had to write my own render loop. For this I made a new class where I used the root's stratRendering function and it's subfunctions and made a little change in them. I had to find the place where every rendertarget gets the command: update. And that was the point where I put my image getter function (it is an opnegl function, and it puts the image in an opencv::mat variable).

If you are interested in it, I put my class here. It needs OpenCV, and works with OpenGl.

[RigoCL]

Great, I will take a look at it.

btw why opencv, are you planning to postprocess the images?

[penbo]

Yes. I have to postprocess them.