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Is it possible to create overlay surface and draw 3D on it using irrlicht?
Under overlay surface i mean surface that draws its content over any pixel with given color on the screen, the same as used by video players with hardware acceleration enabled.
I know how to create it in DirectDraw in DX7, but is it possible to be used in Irrlicht?
If you mean like 'render-to-texture' that is definitly posible, and in case you mean like multiple viewports that is definitly posible too - check the tutorial on the main page.
no, i mean texture that is visible over pixels with specific color only, like video players does. i mean try to pres print screen when media player is playing video. you will get screenshot with black rectangle in the place of video! overlay sufrace is visible only over pixels of that black color. i`m sure it can be done via DX (and i know how it can be done in DX7) but i don`t know how to draw 3d scene in it (this is what i want in the end).
Is it possile (may be with changing Irrlicht sources, that is ok, i`m not a newby in programming)
i already read tutorial with render-in-texture. the problem is that texture is normal, it hasn`t "overlay" aspect that i need. if normal texture can be converted in "overlay" mode this would be ok too!
no, overlays are not supported directly through irrlicht, but you will be able to use a mix of d3d and irrlicht code together if you're using the d3d driver, as you can grab the d3d surface from an irrlicht texture.
it would make a cool snippet/demo, so if you work it out please share
But it requires some specific options set when surface is created. Is it possible to specify options for new surfaces without hacking the sources? i didn`t see the way to do this
i`ll share the result if it will be ready at last
