private SceneNodeBase GetRootNode()
{
var group = new GroupNode();
var filenames = new string[] { "floor.obj_", "cube.obj_", };
var colors = new Color[] { Color.Green, Color.White, };
for (int i = 0; i < filenames.Length; i++)
{
string folder = System.Windows.Forms.Application.StartupPath;
string filename = System.IO.Path.Combine(folder + @"\..\..\..\..\Infrastructure\CSharpGL.Models", filenames[i]);
var parser = new ObjVNFParser(true);
ObjVNFResult result = parser.Parse(filename);
if (result.Error != null)
{
MessageBox.Show(result.Error.ToString());
}
else
{
ObjVNFMesh mesh = result.Mesh;
var model = new AdjacentTriangleModel(mesh);
var node = ShadowVolumeNode.Create(model, ObjVNF.strPosition, ObjVNF.strNormal, model.GetSize());
node.Color = colors[i].ToVec3();
node.WorldPosition = new vec3(0, i * 5, 0);
node.Name = filename;
group.Children.Add(node);
}
}
return(group);
}
public static ShadowVolumeNode Create(IBufferSource model, string position, string normal, vec3 size)
{
RenderMethodBuilder ambientBuilder, extrudeBuilder, underLightBuilder;
{
var vs = new VertexShader(ambientVert);
var fs = new FragmentShader(ambientFrag);
var array = new ShaderArray(vs, fs);
var map = new AttributeMap();
map.Add("inPosition", position);
ambientBuilder = new RenderMethodBuilder(array, map);
}
{
var vs = new VertexShader(extrudeVert);
var gs = new GeometryShader(extrudeGeom);
var fs = new FragmentShader(extrudeFrag);
var array = new ShaderArray(vs, gs, fs);
var map = new AttributeMap();
map.Add("inPosition", position);
extrudeBuilder = new RenderMethodBuilder(array, map);
}
{
var vs = new VertexShader(blinnPhongVert);
var fs = new FragmentShader(blinnPhongFrag);
var array = new ShaderArray(vs, fs);
var map = new AttributeMap();
map.Add("inPosition", position);
map.Add("inNormal", normal);
underLightBuilder = new RenderMethodBuilder(array, map);
}
var node = new ShadowVolumeNode(model, ambientBuilder, extrudeBuilder, underLightBuilder);
node.Initialize();
node.ModelSize = size;
return(node);
}