private void FormMain_Load(object sender, EventArgs e)
{
var position = new vec3(5, 3, 4) * 0.5f;
var center = new vec3(0, 0, 0);
var up = new vec3(0, 1, 0);
var camera = new Camera(position, center, up, CameraType.Perspective, this.winGLCanvas1.Width, this.winGLCanvas1.Height);
this.mainNode = TrianglePatchNode.Create();
var scene = new Scene(camera);
scene.RootNode = mainNode;
this.scene = scene;
var list = new ActionList();
var transformAction = new TransformAction(scene);
list.Add(transformAction);
var renderAction = new RenderAction(scene);
list.Add(renderAction);
this.actionList = list;
//// uncomment these lines to enable manipualter of camera!
//var manipulater = new FirstPerspectiveManipulater();
//manipulater.BindingMouseButtons = System.Windows.Forms.MouseButtons.Right;
//manipulater.Bind(camera, this.winGLCanvas1);
}
public static TrianglePatchNode Create()
{
// model provides vertex buffer and index buffer(within an IDrawCommand).
var model = new TrianglePatchModel();
// vertex shader and fragment shader.
var vs = new VertexShader(vertexCode);
var tc = new TessControlShader(tessellationControlCode);
var te = new TessEvaluationShader(tessellationEvaluationCode);
var fs = new FragmentShader(fragmentCode);
var array = new ShaderArray(vs, tc, te, fs);
// which vertex buffer maps to which attribute in shader.
var map = new AttributeMap();
// help to build a render method.
var builder = new RenderMethodBuilder(array, map, new PolygonModeSwitch(PolygonMode.Line));
// create node.
var node = new TrianglePatchNode(model, builder);
// initialize node.
node.Initialize();
return(node);
}