Question

I’ve searched for a while and I’ve heard of different ways to do this, so I thought I’d come here and see what I should do,

From what I’ve gathered I should use.. glBitmap and 0s and 0xFF values in the array to make the terrain. Any input on this?
I tried switching it to quads, but I’m not sure that is efficient and the way its meant to be done.

I want the terrain to be able to have tunnels, such as worms. 2 Dimensional.

Here is what I’ve tried so far,

I’ve tried to make a glBitmap, so..

pixels = pow(2 * radius, 2);
ras = new GLubyte[pixels];

and then set them all to 0xFF, and drew it using glBitmap(x, y, 0, 0, ras);
This could be then checked for explosions and what not and whatever pixels could be set to zero. Is this a plausible approach? I’m not too good with opengl, can I put a texture on a glBitmap? From what I’ve seen it I don’t think you can.

Answer 1

I would suggest you to use the stencil buffer. You mark destroyed parts of the terrain in the stencil buffer and then draw your terrain with stencil testing enabled with a simple quad without manually testing each pixel.