public override void OnLoad(OpenGL gl)
{
gl.Enable(OpenGL.GL_CULL_FACE);
gl.Enable(OpenGL.GL_DEPTH_TEST);
gl.Enable(OpenGL.GL_BLEND);
gl.BlendFunc(BlendingSourceFactor.SourceAlpha, BlendingDestinationFactor.OneMinusSourceAlpha);
_camera = new OrthographicCamera();
_camera.View *= Mat4.RotateY(Angle.FromDegrees(15));
_shader = new BasicShader(gl);
_modelUniform = gl.GetUniformLocation(_shader.Handle, "Model");
_viewUniform = gl.GetUniformLocation(_shader.Handle, "View");
_projectionUniform = gl.GetUniformLocation(_shader.Handle, "Projection");
_graph = new SceneGraph();
_graph.Nodes.Add(new CoordinateSystemLeaf(gl, _shader, _model.Features.OfType<CoordinateSystem>()));
_graph.Nodes.Add(new DatumPlaneLeaf(gl, _shader, _model.Features.OfType<DatumPlane>()));
const double s = 5.0;
var v0 = new Vertex("v0", new Vect3(0, 0, 0));
var v1 = new Vertex("v1", new Vect3(0, 0, s));
var v2 = new Vertex("v2", new Vect3(s, 0, s));
var v3 = new Vertex("v3", new Vect3(s, 0, 0));
var v4 = new Vertex("v4", new Vect3(0, s, 0));
var v5 = new Vertex("v5", new Vect3(0, s, s));
var v6 = new Vertex("v6", new Vect3(s, s, s));
var v7 = new Vertex("v7", new Vect3(s, s, 0));
var f0 = new Face("f0");
var f1 = new Face("f1");
var f2 = new Face("f2");
var f3 = new Face("f3");
var f4 = new Face("f4");
var f5 = new Face("f5");
LineHalfEdge e0a = null;
LineHalfEdge e0b = null;
LineHalfEdge e1a = null;
LineHalfEdge e1b = null;
LineHalfEdge e2a = null;
LineHalfEdge e2b = null;
LineHalfEdge e3a = null;
LineHalfEdge e3b = null;
LineHalfEdge e4a = null;
LineHalfEdge e4b = null;
LineHalfEdge e5a = null;
LineHalfEdge e5b = null;
LineHalfEdge e6a = null;
LineHalfEdge e6b = null;
LineHalfEdge e7a = null;
LineHalfEdge e7b = null;
LineHalfEdge e8a = null;
LineHalfEdge e8b = null;
LineHalfEdge e9a = null;
LineHalfEdge e9b = null;
LineHalfEdge e10a = null;
LineHalfEdge e10b = null;
LineHalfEdge e11a = null;
LineHalfEdge e11b = null;
e0a = new LineHalfEdge("e0a", v1, new Lazy<IHalfEdge>(() => e0b), f0);
e1a = new LineHalfEdge("e1a", v2, new Lazy<IHalfEdge>(() => e1b), f0);
e2a = new LineHalfEdge("e2a", v3, new Lazy<IHalfEdge>(() => e2b), f0);
e3a = new LineHalfEdge("e3a", v0, new Lazy<IHalfEdge>(() => e3b), f0);
f0.Loops.Add(new EdgeLoop(e0a, e1a, e2a, e3a));
e0b = new LineHalfEdge("e0b", v0, new Lazy<IHalfEdge>(() => e0a), f1);
e7a = new LineHalfEdge("e7a", v4, new Lazy<IHalfEdge>(() => e7b), f1);
e8a = new LineHalfEdge("e8a", v5, new Lazy<IHalfEdge>(() => e8b), f1);
e4a = new LineHalfEdge("e4a", v1, new Lazy<IHalfEdge>(() => e4b), f1);
f1.Loops.Add(new EdgeLoop(e0b, e7a, e8a, e4a));
e1b = new LineHalfEdge("e1b", v1, new Lazy<IHalfEdge>(() => e1a), f2);
e4b = new LineHalfEdge("e4b", v5, new Lazy<IHalfEdge>(() => e4a), f2);
e9a = new LineHalfEdge("e9a", v6, new Lazy<IHalfEdge>(() => e9b), f2);
e5a = new LineHalfEdge("e5a", v2, new Lazy<IHalfEdge>(() => e5b), f2);
f2.Loops.Add(new EdgeLoop(e1b, e4b, e9a, e5a));
e2b = new LineHalfEdge("e2b", v2, new Lazy<IHalfEdge>(() => e2a), f3);
e5b = new LineHalfEdge("e5b", v6, new Lazy<IHalfEdge>(() => e5a), f3);
e10a = new LineHalfEdge("e10a", v7, new Lazy<IHalfEdge>(() => e10b), f3);
e6a = new LineHalfEdge("e6a", v3, new Lazy<IHalfEdge>(() => e6b), f3);
f3.Loops.Add(new EdgeLoop(e2b, e5b, e10a, e6a));
e3b = new LineHalfEdge("e3b", v3, new Lazy<IHalfEdge>(() => e3a), f4);
e6b = new LineHalfEdge("e6b", v7, new Lazy<IHalfEdge>(() => e6a), f4);
e11a = new LineHalfEdge("e11a", v4, new Lazy<IHalfEdge>(() => e11b), f4);
e7b = new LineHalfEdge("e7b", v0, new Lazy<IHalfEdge>(() => e7a), f4);
f4.Loops.Add(new EdgeLoop(e3b, e6b, e11a, e7b));
e8b = new LineHalfEdge("e8b", v4, new Lazy<IHalfEdge>(() => e8a), f5);
e11b = new LineHalfEdge("e11b", v7, new Lazy<IHalfEdge>(() => e11a), f5);
e10b = new LineHalfEdge("e10b", v6, new Lazy<IHalfEdge>(() => e10a), f5);
e9b = new LineHalfEdge("e9b", v5, new Lazy<IHalfEdge>(() => e9b), f5);
f5.Loops.Add(new EdgeLoop(e8b, e11b, e10b, e9b));
var shell = new Shell(f0,f1,f2,f3,f4,f5);
var data = new List<Vert>();
foreach (var face in shell.Faces)
{
foreach (var loop in face.Loops)
{
foreach (var edge in loop.Edges)
{
data.Add(new Vert(edge.Start, Vect3.Zero, Color.Gold.ToVector4()));
data.Add(new Vert(edge.End, Vect3.Zero, Color.Gold.ToVector4()));
}
}
}
_points = new PointRenderer(gl,_shader,data);
// gl.PolygonMode(FaceMode.FrontAndBack, PolygonMode.Lines);
}