示例#1
0
        void CreateMesh()
        {
            Vec3 size = new Vec3( .97f, .97f, .1f );

            Vec3[] positions;
            Vec3[] normals;
            int[] indices;
            GeometryGenerator.GenerateBox( size, out positions, out normals, out indices );

            string meshName = MeshManager.Instance.GetUniqueName(
                string.Format( "JigsawPuzzlePiece[{0},{1}]", index.X, index.Y ) );
            mesh = MeshManager.Instance.CreateManual( meshName );

            //create submesh
            SubMesh subMesh = mesh.CreateSubMesh();
            subMesh.UseSharedVertices = false;

            //init VertexData
            VertexDeclaration declaration = subMesh.VertexData.VertexDeclaration;
            declaration.AddElement( 0, 0, VertexElementType.Float3, VertexElementSemantic.Position );
            declaration.AddElement( 0, 12, VertexElementType.Float3, VertexElementSemantic.Normal );
            declaration.AddElement( 0, 24, VertexElementType.Float2,
                VertexElementSemantic.TextureCoordinates, 0 );

            VertexBufferBinding bufferBinding = subMesh.VertexData.VertexBufferBinding;
            HardwareVertexBuffer vertexBuffer = HardwareBufferManager.Instance.CreateVertexBuffer(
                32, positions.Length, HardwareBuffer.Usage.StaticWriteOnly );
            bufferBinding.SetBinding( 0, vertexBuffer, true );

            subMesh.VertexData.VertexCount = positions.Length;

            unsafe
            {
                Vertex* buffer = (Vertex*)vertexBuffer.Lock( HardwareBuffer.LockOptions.Normal );

                for( int n = 0; n < positions.Length; n++ )
                {
                    Vertex vertex = new Vertex();
                    vertex.position = positions[ n ];
                    vertex.normal = normals[ n ];

                    if( JigsawPuzzleManager.Instance != null )
                    {
                        Vec2I pieceCount = JigsawPuzzleManager.Instance.PieceCount;

                        Vec2I i = index;
                        if( vertex.position.X > 0 )
                            i.X++;
                        if( vertex.position.Y > 0 )
                            i.Y++;

                        vertex.texCoord = new Vec2(
                            (float)i.X / (float)pieceCount.X,
                            1.0f - (float)i.Y / (float)pieceCount.Y );
                    }

                    *buffer = vertex;
                    buffer++;
                }

                vertexBuffer.Unlock();
            }

            //calculate mesh bounds
            Bounds bounds = Bounds.Cleared;
            float radius = 0;
            foreach( Vec3 position in positions )
            {
                bounds.Add( position );
                float r = position.Length();
                if( r > radius )
                    radius = r;
            }
            mesh.SetBoundsAndRadius( bounds, radius );

            //init IndexData
            subMesh.IndexData = IndexData.CreateFromArray( indices, 0, indices.Length, false );

            //init material
            subMesh.MaterialName = "JigsawPuzzleImage";
        }
        private unsafe void UpdateGeometry()
        {
            DestroyGeometry();

            Curve positionCurve = GetPositionCurve();

            Curve radiusCurve = null;
            {
                bool existsSpecialRadius = false;
                foreach (MapCurvePoint point in Points)
                {
                    RenderableCurvePoint point2 = point as RenderableCurvePoint;
                    if (point2 != null && point2.OverrideRadius >= 0)
                    {
                        existsSpecialRadius = true;
                        break;
                    }
                }

                if (existsSpecialRadius)
                {
                    switch (radiusCurveType)
                    {
                        case RadiusCurveTypes.UniformCubicSpline:
                            radiusCurve = new UniformCubicSpline();
                            break;

                        case RadiusCurveTypes.Bezier:
                            radiusCurve = new BezierCurve();
                            break;

                        case RadiusCurveTypes.Line:
                            radiusCurve = new LineCurve();
                            break;
                    }

                    for (int n = 0; n < Points.Count; n++)
                    {
                        MapCurvePoint point = Points[n];

                        if (!point.Editor_IsExcludedFromWorld())
                        {
                            float rad = radius;
                            RenderableCurvePoint renderableCurvePoint = point as RenderableCurvePoint;
                            if (renderableCurvePoint != null && renderableCurvePoint.OverrideRadius >= 0)
                                rad = renderableCurvePoint.OverrideRadius;
                            radiusCurve.AddValue(point.Time, new Vec3(rad, 0, 0));
                        }
                    }
                }
            }

            //create mesh
            Vertex[] vertices = null;
            int[] indices = null;
            if (positionCurve != null && positionCurve.Values.Count > 1 && Points.Count >= 2)
            {
                Vec3 positionOffset = -Position;

                int steps = (Points.Count - 1) * pathSteps + 1;
                int vertexCount = steps * (shapeSegments + 1);
                int indexCount = (steps - 1) * shapeSegments * 2 * 3;

                vertices = new Vertex[vertexCount];
                indices = new int[indexCount];

                //fill data
                {
                    int currentVertex = 0;
                    int currentIndex = 0;
                    float currentDistance = 0;
                    Vec3 lastPosition = Vec3.Zero;
                    Quat lastRot = Quat.Identity;

                    for (int nStep = 0; nStep < steps; nStep++)
                    {
                        int startStepVertexIndex = currentVertex;

                        float coefficient = (float)nStep / (float)(steps - 1);
                        Vec3 pos = CalculateCurvePointByCoefficient(coefficient) + positionOffset;

                        Quat rot;
                        {
                            Vec3 v = CalculateCurvePointByCoefficient(coefficient + .3f / (float)(steps - 1)) -
                                CalculateCurvePointByCoefficient(coefficient);
                            if (v != Vec3.Zero)
                                rot = Quat.FromDirectionZAxisUp(v.GetNormalize());
                            else
                                rot = lastRot;
                        }

                        if (nStep != 0)
                            currentDistance += (pos - lastPosition).Length();

                        float rad;
                        if (radiusCurve != null)
                        {
                            Range range = new Range(radiusCurve.Times[0], radiusCurve.Times[radiusCurve.Times.Count - 1]);
                            float t = range.Minimum + (range.Maximum - range.Minimum) * coefficient;
                            rad = radiusCurve.CalculateValueByTime(t).X;
                        }
                        else
                            rad = radius;

                        for (int nSegment = 0; nSegment < shapeSegments + 1; nSegment++)
                        {
                            float rotateCoefficient = ((float)nSegment / (float)(shapeSegments));
                            float angle = rotateCoefficient * MathFunctions.PI * 2;
                            Vec3 p = pos + rot * new Vec3(0, MathFunctions.Cos(angle) * rad, MathFunctions.Sin(angle) * rad);

                            Vertex vertex = new Vertex();
                            vertex.position = p;
                            Vec3 pp = p - pos;
                            if (pp != Vec3.Zero)
                                vertex.normal = pp.GetNormalize();
                            else
                                vertex.normal = Vec3.XAxis;
                            //vertex.normal = ( p - pos ).GetNormalize();
                            vertex.texCoord = new Vec2(currentDistance * textureCoordinatesTilesPerMeter, rotateCoefficient + .25f);
                            vertex.tangent = new Vec4(rot.GetForward(), 1);
                            vertices[currentVertex++] = vertex;
                        }

                        if (nStep < steps - 1)
                        {
                            for (int nSegment = 0; nSegment < shapeSegments; nSegment++)
                            {
                                indices[currentIndex++] = startStepVertexIndex + nSegment;
                                indices[currentIndex++] = startStepVertexIndex + nSegment + 1;
                                indices[currentIndex++] = startStepVertexIndex + nSegment + 1 + shapeSegments + 1;
                                indices[currentIndex++] = startStepVertexIndex + nSegment + 1 + shapeSegments + 1;
                                indices[currentIndex++] = startStepVertexIndex + nSegment + shapeSegments + 1;
                                indices[currentIndex++] = startStepVertexIndex + nSegment;
                            }
                        }

                        lastPosition = pos;
                        lastRot = rot;
                    }
                    if (currentVertex != vertexCount)
                        Log.Fatal("RenderableCurve: UpdateRenderingGeometry: currentVertex != vertexCount.");
                    if (currentIndex != indexCount)
                        Log.Fatal("RenderableCurve: UpdateRenderingGeometry: currentIndex != indexCount.");
                }

                if (vertices.Length != 0 && indices.Length != 0)
                {
                    //create mesh
                    string meshName = MeshManager.Instance.GetUniqueName(
                        string.Format("__RenderableCurve_{0}_{1}", Name, uniqueMeshIdentifier));
                    uniqueMeshIdentifier++;
                    //string meshName = MeshManager.Instance.GetUniqueName( string.Format( "__RenderableCurve_{0}", Name ) );
                    mesh = MeshManager.Instance.CreateManual(meshName);
                    SubMesh subMesh = mesh.CreateSubMesh();
                    subMesh.UseSharedVertices = false;

                    //init vertexData
                    VertexDeclaration declaration = subMesh.VertexData.VertexDeclaration;
                    declaration.AddElement(0, 0, VertexElementType.Float3, VertexElementSemantic.Position);
                    declaration.AddElement(0, 12, VertexElementType.Float3, VertexElementSemantic.Normal);
                    declaration.AddElement(0, 24, VertexElementType.Float2, VertexElementSemantic.TextureCoordinates, 0);
                    declaration.AddElement(0, 32, VertexElementType.Float4, VertexElementSemantic.Tangent, 0);

                    fixed (Vertex* pVertices = vertices)
                    {
                        subMesh.VertexData = VertexData.CreateFromArray(declaration, (IntPtr)pVertices,
                            vertices.Length * Marshal.SizeOf(typeof(Vertex)));
                    }
                    subMesh.IndexData = IndexData.CreateFromArray(indices, 0, indices.Length, false);

                    //set material
                    subMesh.MaterialName = materialName;

                    //set mesh gabarites
                    Bounds bounds = Bounds.Cleared;
                    foreach (Vertex vertex in vertices)
                        bounds.Add(vertex.position);
                    mesh.SetBoundsAndRadius(bounds, bounds.GetRadius());
                }
            }

            //create MeshObject, SceneNode
            if (mesh != null)
            {
                meshObject = SceneManager.Instance.CreateMeshObject(mesh.Name);
                if (meshObject != null)
                {
                    meshObject.SetMaterialNameForAllSubObjects(materialName);
                    meshObject.CastShadows = true;

                    sceneNode = new SceneNode();
                    sceneNode.Attach(meshObject);
                    //apply offset
                    sceneNode.Position = Position;
                    MapObject.AssociateSceneNodeWithMapObject(sceneNode, this);
                }
            }

            //create collision body
            if (mesh != null && collision)
            {
                Vec3[] positions = new Vec3[vertices.Length];
                for (int n = 0; n < vertices.Length; n++)
                    positions[n] = vertices[n].position;
                string meshPhysicsMeshName = PhysicsWorld.Instance.AddCustomMeshGeometry(positions, indices, null,
                    MeshShape.MeshTypes.TriangleMesh, 0, 0);

                collisionBody = PhysicsWorld.Instance.CreateBody();
                collisionBody.Static = true;
                collisionBody._InternalUserData = this;
                collisionBody.Position = Position;

                MeshShape shape = collisionBody.CreateMeshShape();
                shape.MeshName = meshPhysicsMeshName;
                shape.MaterialName = CollisionMaterialName;
                shape.ContactGroup = (int)ContactGroup.Collision;
                //shape.VehicleDrivableSurface = collisionVehicleDrivableSurface;

                collisionBody.PushedToWorld = true;
            }

            needUpdate = false;
        }
示例#3
0
        void CreateMesh()
        {
            string meshName = MeshManager.Instance.GetUniqueName( "DynamicMesh" );
            mesh = MeshManager.Instance.CreateManual( meshName );

            //set mesh gabarites
            Bounds bounds = new Bounds( new Vec3( -.1f, -.5f, -.5f ), new Vec3( .1f, .5f, .5f ) );
            mesh.SetBoundsAndRadius( bounds, bounds.GetRadius() );

            SubMesh subMesh = mesh.CreateSubMesh();
            subMesh.UseSharedVertices = false;

            int maxVertices = ( Type.GridSize.X + 1 ) * ( Type.GridSize.Y + 1 );
            int maxIndices = Type.GridSize.X * Type.GridSize.Y * 6;

            //init vertexData
            VertexDeclaration declaration = subMesh.VertexData.VertexDeclaration;
            declaration.AddElement( 0, 0, VertexElementType.Float3, VertexElementSemantic.Position );
            declaration.AddElement( 0, 12, VertexElementType.Float3, VertexElementSemantic.Normal );
            declaration.AddElement( 0, 24, VertexElementType.Float2,
                VertexElementSemantic.TextureCoordinates, 0 );

            VertexBufferBinding bufferBinding = subMesh.VertexData.VertexBufferBinding;
            HardwareVertexBuffer vertexBuffer = HardwareBufferManager.Instance.CreateVertexBuffer(
                32, maxVertices, HardwareBuffer.Usage.DynamicWriteOnly );
            bufferBinding.SetBinding( 0, vertexBuffer, true );

            //init indexData
            HardwareIndexBuffer indexBuffer = HardwareBufferManager.Instance.CreateIndexBuffer(
                HardwareIndexBuffer.IndexType._16Bit, maxIndices, HardwareBuffer.Usage.DynamicWriteOnly );
            subMesh.IndexData.SetIndexBuffer( indexBuffer, true );

            //set material
            subMesh.MaterialName = Type.MaterialName;

            needUpdateVertices = true;
            needUpdateIndices = true;
        }
        private void CreateMesh()
        {
            DetachMeshFromEntity();
            DestroyMesh();

            int maxVertexCount = tesselation * tesselation;
            int maxIndexCount = (tesselation - 1) * (tesselation - 1) * 6;

            string meshName = MeshManager.Instance.GetUniqueName("DynamicSinusoidSurface");
            mesh = MeshManager.Instance.CreateManual(meshName);

            SubMesh subMesh = mesh.CreateSubMesh();
            subMesh.UseSharedVertices = false;

            //init vertexData
            VertexDeclaration declaration = subMesh.VertexData.VertexDeclaration;
            declaration.AddElement(0, 0, VertexElementType.Float3, VertexElementSemantic.Position);
            declaration.AddElement(0, 12, VertexElementType.Float3, VertexElementSemantic.Normal);
            declaration.AddElement(0, 24, VertexElementType.Float2, VertexElementSemantic.TextureCoordinates, 0);
            //declaration.AddElement( 0, 32, VertexElementType.Float4, VertexElementSemantic.Tangent, 0 );

            HardwareBuffer.Usage usage = HardwareBuffer.Usage.DynamicWriteOnly;//HardwareBuffer.Usage.StaticWriteOnly;

            HardwareVertexBuffer vertexBuffer = HardwareBufferManager.Instance.CreateVertexBuffer(
                Marshal.SizeOf(typeof(Vertex)), maxVertexCount, usage);
            subMesh.VertexData.VertexBufferBinding.SetBinding(0, vertexBuffer, true);
            subMesh.VertexData.VertexCount = maxVertexCount;

            HardwareIndexBuffer indexBuffer = HardwareBufferManager.Instance.CreateIndexBuffer(
                HardwareIndexBuffer.IndexType._16Bit, maxIndexCount, usage);
            subMesh.IndexData.SetIndexBuffer(indexBuffer, true);
            subMesh.IndexData.IndexCount = maxIndexCount;

            //set material
            subMesh.MaterialName = "DynamicSinusoidSurface";

            //set mesh gabarites
            Bounds bounds = new Bounds(-Scale / 2, Scale / 2);
            mesh.SetBoundsAndRadius(bounds, bounds.GetRadius());
        }