/// <summary>
/// Creates a Bezier patch based on an array of control vertices.
/// </summary>
/// <param name="name"></param>
/// <param name="controlPointBuffer"></param>
/// <param name="declaration"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="uMaxSubdivisionLevel"></param>
/// <param name="vMaxSubdivisionLevel"></param>
/// <param name="visibleSide"></param>
/// <param name="vbUsage"></param>
/// <param name="ibUsage"></param>
/// <param name="vbUseShadow"></param>
/// <param name="ibUseShadow"></param>
/// <returns></returns>
public PatchMesh CreateBezierPatch(string name, System.Array controlPointBuffer, VertexDeclaration declaration,
int width, int height, int uMaxSubdivisionLevel, int vMaxSubdivisionLevel, VisibleSide visibleSide,
BufferUsage vbUsage, BufferUsage ibUsage, bool vbUseShadow, bool ibUseShadow)
{
PatchMesh mesh = (PatchMesh)GetByName(name);
if (mesh != null)
{
throw new AxiomException("A mesh with the name {0} already exists!", name);
}
mesh = new PatchMesh(name, controlPointBuffer, declaration, width, height,
uMaxSubdivisionLevel, vMaxSubdivisionLevel, visibleSide, vbUsage, ibUsage, vbUseShadow, ibUseShadow);
mesh.IsManuallyDefined = true;
base.Load(mesh, 0);
return(mesh);
}
/// <summary>
/// Creates a Bezier patch based on an array of control vertices.
/// </summary>
public PatchMesh CreateBezierPatch( string name, string group, Array controlPointBuffer, VertexDeclaration declaration,
int width, int height, int uMaxSubdivisionLevel, int vMaxSubdivisionLevel, VisibleSide visibleSide,
BufferUsage vbUsage, BufferUsage ibUsage, bool vbUseShadow, bool ibUseShadow )
{
if ( width < 3 || height < 3 )
{
throw new Exception( "Bezier patch requires at least 3x3 control points." );
}
PatchMesh mesh = (PatchMesh)this[ name ];
if ( mesh != null )
{
throw new AxiomException( "A mesh with the name {0} already exists!", name );
}
mesh = new PatchMesh( this, name, nextHandle, group );
mesh.Define( controlPointBuffer, declaration, width, height, uMaxSubdivisionLevel, vMaxSubdivisionLevel, visibleSide, vbUsage, ibUsage, vbUseShadow, ibUseShadow );
mesh.Load();
_add( mesh );
return mesh;
}
protected override void SetupContent()
{
ResourceGroupManager.Instance.InitializeAllResourceGroups();
// setup some basic lighting for our scene
SceneManager.AmbientLight = new ColorEx( 0.5f, 0.5f, 0.5f );
SceneManager.CreateLight( "BezierLight" ).Position = new Vector3( 100, 100, 100 );
// define the control point vertices for our patch
// Patch data
PatchVertex[] patchVertices = new PatchVertex[ 9 ];
patchVertices[ 0 ].X = -500;
patchVertices[ 0 ].Y = 200;
patchVertices[ 0 ].Z = -500;
patchVertices[ 0 ].Nx = -0.5f;
patchVertices[ 0 ].Ny = 0.5f;
patchVertices[ 0 ].Nz = 0;
patchVertices[ 0 ].U = 0;
patchVertices[ 0 ].V = 0;
patchVertices[ 1 ].X = 0;
patchVertices[ 1 ].Y = 500;
patchVertices[ 1 ].Z = -750;
patchVertices[ 1 ].Nx = 0;
patchVertices[ 1 ].Ny = 0.5f;
patchVertices[ 1 ].Nz = 0;
patchVertices[ 1 ].U = 0.5f;
patchVertices[ 1 ].V = 0;
patchVertices[ 2 ].X = 500;
patchVertices[ 2 ].Y = 1000;
patchVertices[ 2 ].Z = -500;
patchVertices[ 2 ].Nx = 0.5f;
patchVertices[ 2 ].Ny = 0.5f;
patchVertices[ 2 ].Nz = 0;
patchVertices[ 2 ].U = 1;
patchVertices[ 2 ].V = 0;
patchVertices[ 3 ].X = -500;
patchVertices[ 3 ].Y = 0;
patchVertices[ 3 ].Z = 0;
patchVertices[ 3 ].Nx = -0.5f;
patchVertices[ 3 ].Ny = 0.5f;
patchVertices[ 3 ].Nz = 0;
patchVertices[ 3 ].U = 0;
patchVertices[ 3 ].V = 0.5f;
patchVertices[ 4 ].X = 0;
patchVertices[ 4 ].Y = 500;
patchVertices[ 4 ].Z = 0;
patchVertices[ 4 ].Nx = 0;
patchVertices[ 4 ].Ny = 0.5f;
patchVertices[ 4 ].Nz = 0;
patchVertices[ 4 ].U = 0.5f;
patchVertices[ 4 ].V = 0.5f;
patchVertices[ 5 ].X = 500;
patchVertices[ 5 ].Y = -50;
patchVertices[ 5 ].Z = 0;
patchVertices[ 5 ].Nx = 0.5f;
patchVertices[ 5 ].Ny = 0.5f;
patchVertices[ 5 ].Nz = 0;
patchVertices[ 5 ].U = 1;
patchVertices[ 5 ].V = 0.5f;
patchVertices[ 6 ].X = -500;
patchVertices[ 6 ].Y = 0;
patchVertices[ 6 ].Z = 500;
patchVertices[ 6 ].Nx = -0.5f;
patchVertices[ 6 ].Ny = 0.5f;
patchVertices[ 6 ].Nz = 0;
patchVertices[ 6 ].U = 0;
patchVertices[ 6 ].V = 1;
patchVertices[ 7 ].X = 0;
patchVertices[ 7 ].Y = 500;
patchVertices[ 7 ].Z = 500;
patchVertices[ 7 ].Nx = 0;
patchVertices[ 7 ].Ny = 0.5f;
patchVertices[ 7 ].Nz = 0;
patchVertices[ 7 ].U = 0.5f;
patchVertices[ 7 ].V = 1;
patchVertices[ 8 ].X = 500;
patchVertices[ 8 ].Y = 200;
patchVertices[ 8 ].Z = 800;
patchVertices[ 8 ].Nx = 0.5f;
patchVertices[ 8 ].Ny = 0.5f;
patchVertices[ 8 ].Nz = 0;
patchVertices[ 8 ].U = 1;
patchVertices[ 8 ].V = 1;
// specify a vertex format declaration for our patch: 3 floats for position, 3 floats for normal, 2 floats for UV
patchDeclaration = HardwareBufferManager.Instance.CreateVertexDeclaration();
patchDeclaration.AddElement( 0, 0, VertexElementType.Float3, VertexElementSemantic.Position );
patchDeclaration.AddElement( 0, 12, VertexElementType.Float3, VertexElementSemantic.Normal );
patchDeclaration.AddElement( 0, 24, VertexElementType.Float2, VertexElementSemantic.TexCoords, 0 );
// create a patch mesh using vertices and declaration
patch = MeshManager.Instance.CreateBezierPatch( "patch", ResourceGroupManager.DefaultResourceGroupName, patchVertices, patchDeclaration, 3, 3, 5, 5, VisibleSide.Both, BufferUsage.StaticWriteOnly, BufferUsage.DynamicWriteOnly, true, true );
// Start patch at 0 detail
patch.Subdivision = 0;
// Create entity based on patch
patchEntity = SceneManager.CreateEntity( "Entity1", "patch" );
Material material = (Material)MaterialManager.Instance.Create( "TextMat", ResourceGroupManager.DefaultResourceGroupName, null );
material.GetTechnique( 0 ).GetPass( 0 ).CreateTextureUnitState( "BumpyMetal.jpg" );
patchEntity.MaterialName = "TextMat";
patchPass = material.GetTechnique( 0 ).GetPass( 0 );
// Attach the entity to the root of the scene
SceneManager.RootSceneNode.AttachObject( patchEntity );
// save the main pass of the material so we can toggle wireframe on it
if ( material != null )
{
patchPass = material.GetTechnique( 0 ).GetPass( 0 );
// use an orbit style camera
CameraManager.setStyle( CameraStyle.Orbit );
CameraManager.SetYawPitchDist( 0, 0, 250 );
TrayManager.ShowCursor();
// create slider to adjust detail and checkbox to toggle wireframe
Slider slider = TrayManager.CreateThickSlider( TrayLocation.TopLeft, "Detail", "Detail", 120, 44, 0, 1, 6 );
CheckBox box = TrayManager.CreateCheckBox( TrayLocation.TopLeft, "Wireframe", "Wireframe", 120 );
slider.SliderMoved += new SliderMovedHandler( slider_SliderMoved );
box.CheckChanged += new CheckChangedHandler( box_CheckChanged );
}
}
/// <summary>
/// Creates a Bezier patch based on an array of control vertices.
/// </summary>
/// <param name="name"></param>
/// <param name="controlPointBuffer"></param>
/// <param name="declaration"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="uMaxSubdivisionLevel"></param>
/// <param name="vMaxSubdivisionLevel"></param>
/// <param name="visibleSide"></param>
/// <param name="vbUsage"></param>
/// <param name="ibUsage"></param>
/// <param name="vbUseShadow"></param>
/// <param name="ibUseShadow"></param>
/// <returns></returns>
public PatchMesh CreateBezierPatch(string name, System.Array controlPointBuffer, VertexDeclaration declaration,
int width, int height, int uMaxSubdivisionLevel, int vMaxSubdivisionLevel, VisibleSide visibleSide,
BufferUsage vbUsage, BufferUsage ibUsage, bool vbUseShadow, bool ibUseShadow)
{
PatchMesh mesh = (PatchMesh)GetByName(name);
if(mesh != null) {
throw new AxiomException("A mesh with the name {0} already exists!", name);
}
mesh = new PatchMesh(name, controlPointBuffer, declaration, width, height,
uMaxSubdivisionLevel, vMaxSubdivisionLevel, visibleSide, vbUsage, ibUsage, vbUseShadow, ibUseShadow);
mesh.IsManuallyDefined = true;
base.Load(mesh, 0);
return mesh;
}
// Just override the mandatory create scene method
protected override void CreateScene()
{
// Set ambient light
scene.AmbientLight = new ColorEx(0.2f, 0.2f, 0.2f);
// Create point light
Light light = scene.CreateLight("MainLight");
// Accept default settings: point light, white diffuse, just set position.
// I could attach the light to a SceneNode if I wanted it to move automatically with
// other objects, but I don't.
light.Type = LightType.Directional;
light.Direction = new Vector3(-0.5f, -0.5f, 0);
// Create patch with positions, normals, and 1 set of texcoords
patchDeclaration = HardwareBufferManager.Instance.CreateVertexDeclaration();
patchDeclaration.AddElement(0, 0, VertexElementType.Float3, VertexElementSemantic.Position);
patchDeclaration.AddElement(0, 12, VertexElementType.Float3, VertexElementSemantic.Normal);
patchDeclaration.AddElement(0, 24, VertexElementType.Float2, VertexElementSemantic.TexCoords, 0);
// Patch data
PatchVertex[] patchVertices = new PatchVertex[9];
patchVertices[0].X = -500; patchVertices[0].Y = 200; patchVertices[0].Z = -500;
patchVertices[0].Nx = -0.5f; patchVertices[0].Ny = 0.5f; patchVertices[0].Nz = 0;
patchVertices[0].U = 0; patchVertices[0].V = 0;
patchVertices[1].X = 0; patchVertices[1].Y = 500; patchVertices[1].Z = -750;
patchVertices[1].Nx = 0; patchVertices[1].Ny = 0.5f; patchVertices[1].Nz = 0;
patchVertices[1].U = 0.5f; patchVertices[1].V = 0;
patchVertices[2].X = 500; patchVertices[2].Y = 1000; patchVertices[2].Z = -500;
patchVertices[2].Nx = 0.5f; patchVertices[2].Ny = 0.5f; patchVertices[2].Nz = 0;
patchVertices[2].U = 1; patchVertices[2].V = 0;
patchVertices[3].X = -500; patchVertices[3].Y = 0; patchVertices[3].Z = 0;
patchVertices[3].Nx = -0.5f; patchVertices[3].Ny = 0.5f; patchVertices[3].Nz = 0;
patchVertices[3].U = 0; patchVertices[3].V = 0.5f;
patchVertices[4].X = 0; patchVertices[4].Y = 500; patchVertices[4].Z = 0;
patchVertices[4].Nx = 0; patchVertices[4].Ny = 0.5f; patchVertices[4].Nz = 0;
patchVertices[4].U = 0.5f; patchVertices[4].V = 0.5f;
patchVertices[5].X = 500; patchVertices[5].Y = -50; patchVertices[5].Z = 0;
patchVertices[5].Nx = 0.5f; patchVertices[5].Ny = 0.5f; patchVertices[5].Nz = 0;
patchVertices[5].U = 1; patchVertices[5].V = 0.5f;
patchVertices[6].X = -500; patchVertices[6].Y = 0; patchVertices[6].Z = 500;
patchVertices[6].Nx = -0.5f; patchVertices[6].Ny = 0.5f; patchVertices[6].Nz = 0;
patchVertices[6].U = 0; patchVertices[6].V = 1;
patchVertices[7].X = 0; patchVertices[7].Y = 500; patchVertices[7].Z = 500;
patchVertices[7].Nx = 0; patchVertices[7].Ny = 0.5f; patchVertices[7].Nz = 0;
patchVertices[7].U = 0.5f; patchVertices[7].V = 1;
patchVertices[8].X = 500; patchVertices[8].Y = 200; patchVertices[8].Z = 800;
patchVertices[8].Nx = 0.5f; patchVertices[8].Ny = 0.5f; patchVertices[8].Nz = 0;
patchVertices[8].U = 1; patchVertices[8].V = 1;
patch = MeshManager.Instance.CreateBezierPatch("Bezier1", patchVertices, patchDeclaration, 3, 3, 5, 5, VisibleSide.Both, BufferUsage.StaticWriteOnly, BufferUsage.DynamicWriteOnly, true, true);
// Start patch a 0 detail
patch.SetSubdivision(0);
// Create entity based on patch
patchEntity = scene.CreateEntity("Entity1", "Bezier1");
Material material = (Material)MaterialManager.Instance.Create("TextMat");
material.GetTechnique(0).GetPass(0).CreateTextureUnitState("BumpyMetal.jpg");
patchEntity.MaterialName = "TextMat";
// Attach the entity to the root of the scene
scene.RootSceneNode.AttachObject(patchEntity);
camera.Position = new Vector3(500, 500, 1500);
camera.LookAt(new Vector3(0, 200, -300));
}
public void OnLoad()
{
// Create patch with positions, normals, and 1 set of texcoords
var patchDeclaration = HardwareBufferManager.Instance.CreateVertexDeclaration();
patchDeclaration.AddElement(0, 0, VertexElementType.Float3, VertexElementSemantic.Position);
patchDeclaration.AddElement(0, 12, VertexElementType.Float3, VertexElementSemantic.Normal);
patchDeclaration.AddElement(0, 24, VertexElementType.Float2, VertexElementSemantic.TexCoords, 0);
var patchVertices = new PatchVertex[9];
patchVertices[0].X = -500;
patchVertices[0].Y = 200;
patchVertices[0].Z = -500;
patchVertices[0].Nx = -0.5f;
patchVertices[0].Ny = 0.5f;
patchVertices[0].Nz = 0;
patchVertices[0].U = 0;
patchVertices[0].V = 0;
patchVertices[1].X = 0;
patchVertices[1].Y = 500;
patchVertices[1].Z = -750;
patchVertices[1].Nx = 0;
patchVertices[1].Ny = 0.5f;
patchVertices[1].Nz = 0;
patchVertices[1].U = 0.5f;
patchVertices[1].V = 0;
patchVertices[2].X = 500;
patchVertices[2].Y = 1000;
patchVertices[2].Z = -500;
patchVertices[2].Nx = 0.5f;
patchVertices[2].Ny = 0.5f;
patchVertices[2].Nz = 0;
patchVertices[2].U = 1;
patchVertices[2].V = 0;
patchVertices[3].X = -500;
patchVertices[3].Y = 0;
patchVertices[3].Z = 0;
patchVertices[3].Nx = -0.5f;
patchVertices[3].Ny = 0.5f;
patchVertices[3].Nz = 0;
patchVertices[3].U = 0;
patchVertices[3].V = 0.5f;
patchVertices[4].X = 0;
patchVertices[4].Y = 500;
patchVertices[4].Z = 0;
patchVertices[4].Nx = 0;
patchVertices[4].Ny = 0.5f;
patchVertices[4].Nz = 0;
patchVertices[4].U = 0.5f;
patchVertices[4].V = 0.5f;
patchVertices[5].X = 500;
patchVertices[5].Y = -50;
patchVertices[5].Z = 0;
patchVertices[5].Nx = 0.5f;
patchVertices[5].Ny = 0.5f;
patchVertices[5].Nz = 0;
patchVertices[5].U = 1;
patchVertices[5].V = 0.5f;
patchVertices[6].X = -500;
patchVertices[6].Y = 0;
patchVertices[6].Z = 500;
patchVertices[6].Nx = -0.5f;
patchVertices[6].Ny = 0.5f;
patchVertices[6].Nz = 0;
patchVertices[6].U = 0;
patchVertices[6].V = 1;
patchVertices[7].X = 0;
patchVertices[7].Y = 500;
patchVertices[7].Z = 500;
patchVertices[7].Nx = 0;
patchVertices[7].Ny = 0.5f;
patchVertices[7].Nz = 0;
patchVertices[7].U = 0.5f;
patchVertices[7].V = 1;
patchVertices[8].X = 500;
patchVertices[8].Y = 200;
patchVertices[8].Z = 800;
patchVertices[8].Nx = 0.5f;
patchVertices[8].Ny = 0.5f;
patchVertices[8].Nz = 0;
patchVertices[8].U = 1;
patchVertices[8].V = 1;
_patch = MeshManager.Instance.CreateBezierPatch("Bezier1", ResourceGroupManager.DefaultResourceGroupName, patchVertices, patchDeclaration, 3, 3, 5, 5, VisibleSide.Both, BufferUsage.StaticWriteOnly, BufferUsage.DynamicWriteOnly, true, true);
_patch.Subdivision = 1.0f;
_scene = _root.CreateSceneManager("DefaultSceneManager", "SLSharpInstance");
_scene.ClearScene();
_patchEntity = _scene.CreateEntity("Entity1", "Bezier1");
_camera = _scene.CreateCamera("MainCamera");
var mat = (Material)MaterialManager.Instance.Create("test", ResourceGroupManager.DefaultResourceGroupName);
var pass = mat.GetTechnique(0).GetPass(0);
pass.LightingEnabled = false;
_patchEntity.MaterialName = mat.Name;
_scene.RootSceneNode.AttachObject(_patchEntity);
_camera.LookAt(Vector3.Zero);
_camera.Near = 5;
_camera.AutoAspectRatio = true;
var vp = _root.AutoWindow.AddViewport(_camera, 0, 0, 1.0f, 1.0f, 100);
vp.BackgroundColor = ColorEx.CornflowerBlue;
}