private static GLDisplayList CreateLine(GLContext ctx)
{
GLDisplayList list = new GLDisplayList(ctx);
ctx.glBegin(GLPrimitiveType.Lines);
ctx.glVertex(0.0f, 0.0f, 0.0f);
ctx.glVertex(2.0f, 0.0f, 0.0f);
ctx.glEnd();
list.End();
return(list);
}
private static GLDisplayList CreateCircle(GLContext ctx)
{
GLDisplayList list = new GLDisplayList(ctx);
list.Begin();
ctx.glBegin(GLPrimitiveType.TriangleFan);
ctx.glVertex(0.0f, 0.0f, 0.0f);
float angle = 0.0f;
for (int i = 0; i < 361; i++, angle = i * Maths._deg2radf)
{
ctx.glVertex(Math.Cos(angle), Math.Sin(angle));
}
ctx.glEnd();
list.End();
return(list);
}
private static GLDisplayList CreateCube(GLContext ctx)
{
GLDisplayList list = new GLDisplayList(ctx);
list.Begin();
ctx.glBegin(GLPrimitiveType.QuadStrip);
Vector3 p1 = new Vector3(0);
Vector3 p2 = new Vector3(0.99f);
ctx.glVertex(p1._x, p1._y, p1._z);
ctx.glVertex(p1._x, p2._y, p1._z);
ctx.glVertex(p2._x, p1._y, p1._z);
ctx.glVertex(p2._x, p2._y, p1._z);
ctx.glVertex(p2._x, p1._y, p2._z);
ctx.glVertex(p2._x, p2._y, p2._z);
ctx.glVertex(p1._x, p1._y, p2._z);
ctx.glVertex(p1._x, p2._y, p2._z);
ctx.glVertex(p1._x, p1._y, p1._z);
ctx.glVertex(p1._x, p2._y, p1._z);
ctx.glEnd();
ctx.glBegin(GLPrimitiveType.Quads);
ctx.glVertex(p1._x, p2._y, p1._z);
ctx.glVertex(p1._x, p2._y, p2._z);
ctx.glVertex(p2._x, p2._y, p2._z);
ctx.glVertex(p2._x, p2._y, p1._z);
ctx.glVertex(p1._x, p1._y, p1._z);
ctx.glVertex(p1._x, p1._y, p2._z);
ctx.glVertex(p2._x, p1._y, p2._z);
ctx.glVertex(p2._x, p1._y, p1._z);
ctx.glEnd();
list.End();
return(list);
}