Hi,

I'm newbie in OpenGL. I've downloaded a few OpenGL tutorials. But I'm unable to find out how to draw Grid, that points to the camera horizon. Does anyone know about a good OpenGL tutorial/source code for drawing Grids?

My ultimate aim is to project the longitude and latitude grids on top of Camera preview.

Any suggestion will be very much appreciated.

-raich

make a mock up image in photoshop or image tool of choice, post it, then I'll try and find some time to answer.

Ahh I get it (I think). overlaying a grid on the camera feed... to show lat/long.

well, I imagine you'd have to draw a normal ole grid on the correct axis (z? been a while since i've done opengl..), and somehow draw that on the camera output. you'd also have to detect tilt of the device and change the opengl viewport accordingly, so the lines "stick" to the earth on the camera output. interesting concept, let us know how you go

Using lines...
one for the X and the other for the Y or Z