Cube  Diff

void
setarraypointers()
{
	glVertexPointer(3, GL_FLOAT, sizeof(vertex), &verts[0].x);
	glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(vertex), &verts[0].r);
	glTexCoordPointer(2, GL_FLOAT, sizeof(vertex), &verts[0].u);
};
}

void
reallocv()
{
	verts = (vertex *)realloc(verts, (curmaxverts *= 2) * sizeof(vertex));
	curmaxverts -= 10;
	if (!verts)
		fatal("no vertex memory!");
		fatal(@"no vertex memory!");
	setarraypointers();
};
}

// generating the actual vertices is done dynamically every frame and sits at
// the leaves of all these functions, and are part of the cpu bottleneck on
// really slow machines, hence the macros.

#define vertcheck()                                                            \
	{                                                                      \