private SceneNodeBase GetRootNode()
{
var rootNode = new GroupNode();
{
var axisNode = AxisNode.Create();
axisNode.Scale = new vec3(1, 1, 1) * 0.2f;
rootNode.Children.Add(axisNode);
}
{
var cameraNode = CameraNode.Create();
cameraNode.Scale = new vec3(1, 1, 1) * 0.2f;
rootNode.Children.Add(cameraNode);
}
{
var perspectiveNode = OrthoNode.Create();
rootNode.Children.Add(perspectiveNode);
}
{
//var cameraOutlineNode = CameraOutlineNode.Create();
//rootNode.Children.Add(cameraOutlineNode);
}
{
var groundNode = GroundNode.Create();
//rootNode.Children.Add(groundNode);
}
return(rootNode);
}
public static GroundNode Create()
{
// vertex buffer and index buffer.
var model = new GroundModel(12);
// vertex shader and fragment shader.
var vs = new VertexShader(vertexCode);
var fs = new FragmentShader(fragmnetCode);
var array = new ShaderArray(vs, fs);
// which vertex buffer maps to which attribute in shader.
var map = new AttributeMap();
map.Add("inPosition", GroundModel.strPosition);
// build a render method.
var builder = new RenderMethodBuilder(array, map, new LineWidthSwitch(1));
// create node.
var node = new GroundNode(model, builder);
// initialize node.
node.Initialize();
return(node);
}