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snowfell

building a 3d grid function

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Hey, I have been working on a 3d program for just over a month now, and I need help setting up a 3d grid function (just add width, height, and size of the box. It should run on the x and z axis I guess, y is vertical height). So the function should look like: BuildGrid(float width, float height, float units). But I am having trouble figuring out how to do the rest. I know I don't want to do it using textures for the units, so would glVertexs work best? What I need is a way to figure out how to draw the right amount of lines and where at. Any tips? [Edited by - snowfell on July 18, 2008 3:00:25 PM]

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Here you go, let me know if this accomplished what you were looking for:

void BuildGrid(float width, float height, float units)
{
for(float i = -(width / 2); i <= (width / 2); i += (width / units))
{
glBegin(GL_LINES);
//line along x axis
glVertex3f(-(width / 2), height, i);
glVertex3f((width / 2), height, i);
//line along z axis
glVertex3f(i, height, -(width / 2));
glVertex3f(i, height, (width / 2));
glEnd();
}
}

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