Beispiel #1
0
        public override void init()
        {
            Device d3dDevice = GuiController.Instance.D3dDevice;

            //Crear loader
            TgcSceneLoader loader = new TgcSceneLoader();


            // ------------------------------------------------------------
            // Creo el Heightmap para el terreno:
            terrain = new MySimpleTerrain();
            terrain.loadHeightmap(GuiController.Instance.ExamplesDir
                                  + "Shaders\\WorkshopShaders\\Media\\Heighmaps\\" + "Heightmap3.jpg", 100f, 1f, new Vector3(0, 0, 0));
            terrain.loadTexture(GuiController.Instance.ExamplesDir
                                + "Shaders\\WorkshopShaders\\Media\\Heighmaps\\" + "TerrainTexture3.jpg");

            // ------------------------------------------------------------
            // Crear SkyBox:
            skyBox        = new TgcSkyBox();
            skyBox.Center = new Vector3(0, 0, 0);
            skyBox.Size   = new Vector3(8000, 8000, 8000);
            string texturesPath = GuiController.Instance.ExamplesMediaDir + "Texturas\\Quake\\SkyBox1\\";

            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Up, texturesPath + "phobos_up.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Down, texturesPath + "phobos_dn.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Left, texturesPath + "phobos_lf.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Right, texturesPath + "phobos_rt.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Front, texturesPath + "phobos_bk.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Back, texturesPath + "phobos_ft.jpg");
            skyBox.SkyEpsilon = 50f;
            skyBox.updateValues();

            // ------------------------------------------------------------
            //Cargar los mesh:
            scene = loader.loadSceneFromFile(GuiController.Instance.ExamplesMediaDir
                                             + "MeshCreator\\Meshes\\Vehiculos\\TanqueFuturistaRuedas\\TanqueFuturistaRuedas-TgcScene.xml");
            mesh = scene.Meshes[0];

            scene2 = loader.loadSceneFromFile(GuiController.Instance.ExamplesMediaDir
                                              + "MeshCreator\\Meshes\\Vegetacion\\Palmera\\Palmera-TgcScene.xml");
            palmera = scene2.Meshes[0];

            scene3 = loader.loadSceneFromFile(GuiController.Instance.ExamplesMediaDir
                                              + "MeshCreator\\Meshes\\Vehiculos\\Canoa\\Canoa-TgcScene.xml");
            canoa = scene3.Meshes[0];

            scene4 = loader.loadSceneFromFile(GuiController.Instance.ExamplesDir
                                              + "Shaders\\WorkshopShaders\\Media\\Piso\\Agua-TgcScene.xml");
            piso = scene4.Meshes[0];

            mesh.Scale               = new Vector3(0.5f, 0.5f, 0.5f);
            mesh.Position            = new Vector3(0f, 0f, 0f);
            mesh.AutoTransformEnable = false;
            Vector3 size = mesh.BoundingBox.calculateSize();

            largo_tanque              = Math.Abs(size.Z);
            alto_tanque               = Math.Abs(size.Y) * mesh.Scale.Y;
            vel_tanque                = 10;
            an_tanque                 = 0;
            canoa.Scale               = new Vector3(1f, 1f, 1f);
            canoa.Position            = new Vector3(3000f, 550f, 0f);
            canoa.AutoTransformEnable = false;
            dir_canoa                 = new Vector3(0, 0, 1);
            nivel_mar                 = 135f;
            piso.Scale                = new Vector3(25f, 1f, 25f);
            piso.Position             = new Vector3(0f, nivel_mar, 0f);

            size = palmera.BoundingBox.calculateSize();
            float alto_palmera = Math.Abs(size.Y);

            cant_palmeras = 0;
            int i;

            bosque = new List <TgcMesh>();
            float[] r = { 1850f, 2100f, 2300f, 1800f };
            for (i = 0; i < 4; i++)
            {
                for (int j = 0; j < 15; j++)
                {
                    TgcMesh instance = palmera.createMeshInstance(palmera.Name + i);
                    instance.Scale = new Vector3(0.5f, 1.5f, 0.5f);
                    float x = r[i] * (float)Math.Cos(Geometry.DegreeToRadian(100 + 10.0f * j));
                    float z = r[i] * (float)Math.Sin(Geometry.DegreeToRadian(100 + 10.0f * j));
                    instance.Position = new Vector3(x, terrain.CalcularAltura(x, z) /*+ alto_palmera / 2 * instance.Scale.Y*/, z);
                    bosque.Add(instance);
                    ++cant_palmeras;
                }
            }

            // segunda parte: la isla del medio
            // estas no entran en el env. map (porque se supone que el env. map esta lejos
            // del pto de vista del observador y estas palmeras estan en el medio del lago)
            float[] r2 = { 200f, 350f, 400f, 477f };
            for (i = 0; i < 4; i++)
            {
                for (int j = 0; j < 5; j++)
                {
                    TgcMesh instance = palmera.createMeshInstance(palmera.Name + i);
                    instance.Scale = new Vector3(0.5f, 1f + j / 5f * 0.33f, 0.5f);
                    float x = r2[i] * (float)Math.Cos(Geometry.DegreeToRadian(25.0f * j));
                    float z = r2[i] * (float)Math.Sin(Geometry.DegreeToRadian(25.0f * j));
                    instance.Position = new Vector3(x, terrain.CalcularAltura(x, z) /*+ alto_palmera / 2 * instance.Scale.Y*/, z);
                    bosque.Add(instance);
                }
            }

            GuiController.Instance.RotCamera.CameraDistance = 300;
            GuiController.Instance.RotCamera.RotationSpeed  = 1.5f;

            // Arreglo las normales del tanque

            /*int[] adj = new int[mesh.D3dMesh.NumberFaces * 3];
             * mesh.D3dMesh.GenerateAdjacency(0, adj);
             * mesh.D3dMesh.ComputeNormals(adj);
             */

            g_pCubeMapAgua = null;

            //Cargar Shader personalizado
            effect = TgcShaders.loadEffect(GuiController.Instance.ExamplesDir + "Shaders\\WorkshopShaders\\Shaders\\Demo.fx");

            // le asigno el efecto a las mallas
            mesh.Effect       = effect;
            mesh.Technique    = "RenderScene";
            piso.Effect       = effect;
            piso.Technique    = "RenderScene";
            palmera.Effect    = effect;
            palmera.Technique = "RenderScene";
            canoa.Effect      = effect;
            canoa.Technique   = "RenderScene";

            //--------------------------------------------------------------------------------------
            // Creo el shadowmap.
            // Format.R32F
            // Format.X8R8G8B8
            g_pShadowMap = new Texture(d3dDevice, SHADOWMAP_SIZE, SHADOWMAP_SIZE,
                                       1, Usage.RenderTarget, Format.R32F,
                                       Pool.Default);

            // tengo que crear un stencilbuffer para el shadowmap manualmente
            // para asegurarme que tenga la el mismo tamaño que el shadowmap, y que no tenga
            // multisample, etc etc.
            g_pDSShadow = d3dDevice.CreateDepthStencilSurface(SHADOWMAP_SIZE,
                                                              SHADOWMAP_SIZE,
                                                              DepthFormat.D24S8,
                                                              MultiSampleType.None,
                                                              0,
                                                              true);
            // por ultimo necesito una matriz de proyeccion para el shadowmap, ya
            // que voy a dibujar desde el pto de vista de la luz.
            // El angulo tiene que ser mayor a 45 para que la sombra no falle en los extremos del cono de luz
            // de hecho, un valor mayor a 90 todavia es mejor, porque hasta con 90 grados es muy dificil
            // lograr que los objetos del borde generen sombras
            Control panel3d     = GuiController.Instance.Panel3d;
            float   aspectRatio = (float)panel3d.Width / (float)panel3d.Height;

            g_mShadowProj = Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(130.0f),
                                                    aspectRatio, near_plane, far_plane);
            d3dDevice.Transform.Projection =
                Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(45.0f),
                                        aspectRatio, near_plane, far_plane);

            alfa_sol = 1.7f;
            //alfa_sol = 0;

            //--------------------------------------------------------------------------------------
            //Centrar camara rotacional respecto a este mesh
            camara_rot = false;
            GuiController.Instance.RotCamera.targetObject(mesh.BoundingBox);
            LookFrom = new Vector3(0, 400, 2000);
            LookAt   = new Vector3(0, 200, 0);


            // inicio unos segundos de preview
            timer_preview = 50;

            arrow           = new TgcArrow();
            arrow.Thickness = 1f;
            arrow.HeadSize  = new Vector2(2f, 2f);
            arrow.BodyColor = Color.Blue;

            ant_vista    = tipo_vista = 0;
            View1        = new Viewport();
            View1.X      = 0;
            View1.Y      = 0;
            View1.Width  = panel3d.Width;
            View1.Height = panel3d.Height / 2;
            View1.MinZ   = 0;
            View1.MaxZ   = 1;
            View2        = new Viewport();
            View2.X      = 0;
            View2.Y      = View1.Height;
            View2.Width  = panel3d.Width;
            View2.Height = panel3d.Height / 2;
            View2.MinZ   = 0;
            View2.MaxZ   = 1;

            ViewF = d3dDevice.Viewport;
        }
Beispiel #2
0
        public override void init()
        {
            Device d3dDevice = GuiController.Instance.D3dDevice;

            //Crear loader
            TgcSceneLoader loader = new TgcSceneLoader();


            // ------------------------------------------------------------
            // Creo el Heightmap para el terreno:
            terrain = new MySimpleTerrain();
            terrain.loadHeightmap(GuiController.Instance.ExamplesDir
                    + "Shaders\\WorkshopShaders\\Media\\Heighmaps\\" + "Heightmap3.jpg", 100f, 1f, new Vector3(0, 0, 0));
            terrain.loadTexture(GuiController.Instance.ExamplesDir
                    + "Shaders\\WorkshopShaders\\Media\\Heighmaps\\" + "TerrainTexture3.jpg");

            // ------------------------------------------------------------
            // Crear SkyBox:
            skyBox = new TgcSkyBox();
            skyBox.Center = new Vector3(0, 0, 0);
            skyBox.Size = new Vector3(8000, 8000, 8000);
            string texturesPath = GuiController.Instance.ExamplesMediaDir + "Texturas\\Quake\\SkyBox1\\";
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Up, texturesPath + "phobos_up.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Down, texturesPath + "phobos_dn.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Left, texturesPath + "phobos_lf.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Right, texturesPath + "phobos_rt.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Front, texturesPath + "phobos_bk.jpg");
            skyBox.setFaceTexture(TgcSkyBox.SkyFaces.Back, texturesPath + "phobos_ft.jpg");
            skyBox.SkyEpsilon = 50f;
            skyBox.updateValues();

            // ------------------------------------------------------------
            //Cargar los mesh:
            scene = loader.loadSceneFromFile(GuiController.Instance.ExamplesMediaDir
                            + "MeshCreator\\Meshes\\Vehiculos\\TanqueFuturistaRuedas\\TanqueFuturistaRuedas-TgcScene.xml");
            mesh = scene.Meshes[0];
            
            scene2 = loader.loadSceneFromFile(GuiController.Instance.ExamplesMediaDir
                            + "MeshCreator\\Meshes\\Vegetacion\\Palmera\\Palmera-TgcScene.xml");
            palmera = scene2.Meshes[0];
            
            scene3 = loader.loadSceneFromFile(GuiController.Instance.ExamplesMediaDir
                            + "MeshCreator\\Meshes\\Vehiculos\\Canoa\\Canoa-TgcScene.xml");
            canoa = scene3.Meshes[0];

            scene4 = loader.loadSceneFromFile(GuiController.Instance.ExamplesDir
                            + "Shaders\\WorkshopShaders\\Media\\Piso\\Agua-TgcScene.xml");
            piso = scene4.Meshes[0];

            mesh.Scale = new Vector3(0.5f, 0.5f, 0.5f);
            mesh.Position = new Vector3(0f, 0f, 0f);
            mesh.AutoTransformEnable = false;
            Vector3 size = mesh.BoundingBox.calculateSize();
            largo_tanque = Math.Abs(size.Z);
            alto_tanque = Math.Abs(size.Y) * mesh.Scale.Y;
            vel_tanque = 10;
            an_tanque = 0;
            canoa.Scale = new Vector3(1f, 1f, 1f);
            canoa.Position = new Vector3(3000f, 550f, 0f);
            canoa.AutoTransformEnable = false;
            dir_canoa = new Vector3(0, 0, 1);
            nivel_mar = 135f;
            piso.Scale = new Vector3(25f, 1f, 25f);
            piso.Position = new Vector3(0f, nivel_mar, 0f);

            size = palmera.BoundingBox.calculateSize();
            float alto_palmera = Math.Abs(size.Y);
            cant_palmeras = 0;
            int i;
            bosque = new List<TgcMesh>();
            float[] r = { 1850f, 2100f, 2300f, 1800f };
            for (i = 0; i < 4; i++)
                for (int j = 0; j < 15; j++)
                {
                    TgcMesh instance = palmera.createMeshInstance(palmera.Name + i);
                    instance.Scale = new Vector3(0.5f, 1.5f, 0.5f);
                    float x = r[i] * (float)Math.Cos(Geometry.DegreeToRadian(100 + 10.0f * j));
                    float z = r[i] * (float)Math.Sin(Geometry.DegreeToRadian(100 + 10.0f * j));
                    instance.Position = new Vector3(x, terrain.CalcularAltura(x, z) /*+ alto_palmera / 2 * instance.Scale.Y*/, z);
                    bosque.Add(instance);
                    ++cant_palmeras;
                }

            // segunda parte: la isla del medio
            // estas no entran en el env. map (porque se supone que el env. map esta lejos
            // del pto de vista del observador y estas palmeras estan en el medio del lago)
            float[] r2 = { 200f, 350f, 400f, 477f };
            for (i = 0; i < 4; i++)
                for (int j = 0; j < 5; j++)
                {
                    TgcMesh instance = palmera.createMeshInstance(palmera.Name + i);
                    instance.Scale = new Vector3(0.5f, 1f + j/5f*0.33f, 0.5f);
                    float x = r2[i] * (float)Math.Cos(Geometry.DegreeToRadian(25.0f * j));
                    float z = r2[i] * (float)Math.Sin(Geometry.DegreeToRadian(25.0f * j));
                    instance.Position = new Vector3(x, terrain.CalcularAltura(x, z) /*+ alto_palmera / 2 * instance.Scale.Y*/ , z);
                    bosque.Add(instance);
                }

            GuiController.Instance.RotCamera.CameraDistance = 300;
            GuiController.Instance.RotCamera.RotationSpeed = 1.5f;

            // Arreglo las normales del tanque 
            /*int[] adj = new int[mesh.D3dMesh.NumberFaces * 3];
            mesh.D3dMesh.GenerateAdjacency(0, adj);
            mesh.D3dMesh.ComputeNormals(adj);
             */

            g_pCubeMapAgua = null;

            //Cargar Shader personalizado
            effect = TgcShaders.loadEffect(GuiController.Instance.ExamplesDir + "Shaders\\WorkshopShaders\\Shaders\\Demo.fx");

            // le asigno el efecto a las mallas 
            mesh.Effect = effect;
            mesh.Technique = "RenderScene";
            piso.Effect = effect;
            piso.Technique = "RenderScene";
            palmera.Effect = effect;
            palmera.Technique = "RenderScene";
            canoa.Effect = effect;
            canoa.Technique = "RenderScene";

            //--------------------------------------------------------------------------------------
            // Creo el shadowmap. 
            // Format.R32F
            // Format.X8R8G8B8
            g_pShadowMap = new Texture(d3dDevice, SHADOWMAP_SIZE, SHADOWMAP_SIZE,
                                        1, Usage.RenderTarget, Format.R32F,
                                        Pool.Default);

            // tengo que crear un stencilbuffer para el shadowmap manualmente
            // para asegurarme que tenga la el mismo tamaño que el shadowmap, y que no tenga 
            // multisample, etc etc.
            g_pDSShadow = d3dDevice.CreateDepthStencilSurface(SHADOWMAP_SIZE,
                                                             SHADOWMAP_SIZE,
                                                             DepthFormat.D24S8,
                                                             MultiSampleType.None,
                                                             0,
                                                             true);
            // por ultimo necesito una matriz de proyeccion para el shadowmap, ya 
            // que voy a dibujar desde el pto de vista de la luz.
            // El angulo tiene que ser mayor a 45 para que la sombra no falle en los extremos del cono de luz
            // de hecho, un valor mayor a 90 todavia es mejor, porque hasta con 90 grados es muy dificil
            // lograr que los objetos del borde generen sombras
            Control panel3d = GuiController.Instance.Panel3d;
            float aspectRatio = (float)panel3d.Width / (float)panel3d.Height;
            g_mShadowProj = Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(130.0f),
                aspectRatio, near_plane, far_plane);
            d3dDevice.Transform.Projection =
                Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(45.0f),
                aspectRatio, near_plane, far_plane);

            alfa_sol = 1.7f;
            //alfa_sol = 0;

            //--------------------------------------------------------------------------------------
            //Centrar camara rotacional respecto a este mesh
            camara_rot = false;
            GuiController.Instance.RotCamera.targetObject(mesh.BoundingBox);
            LookFrom = new Vector3(0, 400, 2000);
            LookAt = new Vector3(0,200,0);


            // inicio unos segundos de preview
            timer_preview = 50;

            arrow = new TgcArrow();
            arrow.Thickness = 1f;
            arrow.HeadSize = new Vector2(2f, 2f);
            arrow.BodyColor = Color.Blue;

            ant_vista = tipo_vista = 0;
            View1 = new Viewport();
            View1.X = 0;
            View1.Y = 0;
            View1.Width = panel3d.Width;
            View1.Height = panel3d.Height/2;
            View1.MinZ = 0;
            View1.MaxZ = 1;
            View2 = new Viewport();
            View2.X = 0;
            View2.Y = View1.Height;
            View2.Width = panel3d.Width;
            View2.Height = panel3d.Height / 2;
            View2.MinZ = 0;
            View2.MaxZ = 1;
            
            ViewF = d3dDevice.Viewport;

        }
Beispiel #3
0
        public override void render(float elapsedTime)
        {
            Device  device      = GuiController.Instance.D3dDevice;
            Control panel3d     = GuiController.Instance.Panel3d;
            float   aspectRatio = (float)panel3d.Width / (float)panel3d.Height;

            time += elapsedTime;

            if (GuiController.Instance.D3dInput.keyPressed(Microsoft.DirectX.DirectInput.Key.C))
            {
                timer_preview = 0;
                camara_rot    = !camara_rot;
            }

            if (GuiController.Instance.D3dInput.keyPressed(Microsoft.DirectX.DirectInput.Key.F))
            {
                if (tipo_vista == 1)
                {
                    tipo_vista = 0;
                }
                else
                {
                    tipo_vista = 1;
                }
                ant_vista = tipo_vista;
            }

            if (GuiController.Instance.D3dInput.keyPressed(Microsoft.DirectX.DirectInput.Key.D))
            {
                if (tipo_vista == 2)
                {
                    tipo_vista = ant_vista;
                }
                else
                {
                    tipo_vista = 2;
                }
            }

            if (GuiController.Instance.D3dInput.keyPressed(Microsoft.DirectX.DirectInput.Key.Space))
            {
                if (vel_tanque <= 1)
                {
                    vel_tanque = 10;
                }
                else
                {
                    vel_tanque = 1;
                }
            }

            if (timer_preview > 0)
            {
                timer_preview -= elapsedTime;
                if (timer_preview < 0)
                {
                    timer_preview = 0;
                }
            }

            // animar tanque
            an_tanque -= elapsedTime * Geometry.DegreeToRadian(vel_tanque);
            float alfa         = an_tanque;
            float x0           = 2000f * (float)Math.Cos(alfa);
            float z0           = 2000f * (float)Math.Sin(alfa);
            float offset_rueda = 10;
            float H            = terrain.CalcularAltura(x0, z0) + alto_tanque / 2 - offset_rueda;

            if (H < nivel_mar)
            {
                H = nivel_mar;
            }
            mesh.Position = new Vector3(x0, H, z0);
            // direccion tangente sobre el piso:
            Vector2 dir_tanque = new Vector2(-(float)Math.Sin(alfa), (float)Math.Cos(alfa));

            dir_tanque.Normalize();
            // Posicion de la parte de adelante del tanque
            Vector2 pos2d = new Vector2(x0, z0);

            pos2d = pos2d + dir_tanque * (largo_tanque / 2);
            float H_frente = terrain.CalcularAltura(pos2d.X, pos2d.Y) + alto_tanque / 2 - offset_rueda;

            if (H_frente < nivel_mar - 15)
            {
                H_frente = nivel_mar - 15;
            }
            Vector3 pos_frente = new Vector3(pos2d.X, H_frente, pos2d.Y);
            Vector3 Vel        = pos_frente - mesh.Position;

            Vel.Normalize();
            mesh.Transform = CalcularMatriz(mesh.Position, mesh.Scale, Vel);

            // animo la canoa en circulos:
            alfa = -time *Geometry.DegreeToRadian(10.0f);

            x0              = 400f * (float)Math.Cos(alfa);
            z0              = 400f * (float)Math.Sin(alfa);
            canoa.Position  = new Vector3(x0, 150, z0);
            dir_canoa       = new Vector3(-(float)Math.Sin(alfa), 0, (float)Math.Cos(alfa));
            canoa.Transform = CalcularMatriz(canoa.Position, canoa.Scale, dir_canoa);

            alfa_sol += elapsedTime * Geometry.DegreeToRadian(1.0f);
            if (alfa_sol > 2.5)
            {
                alfa_sol = 1.5f;
            }
            // animo la posicion del sol
            //g_LightPos = new Vector3(1500f * (float)Math.Cos(alfa_sol), 1500f * (float)Math.Sin(alfa_sol), 0f);
            g_LightPos = new Vector3(2000f * (float)Math.Cos(alfa_sol), 2000f * (float)Math.Sin(alfa_sol), 0f);
            g_LightDir = -g_LightPos;
            g_LightDir.Normalize();

            if (timer_preview > 0)
            {
                float an = -time *Geometry.DegreeToRadian(10.0f);

                LookFrom.X = 1500f * (float)Math.Sin(an);
                LookFrom.Z = 1500f * (float)Math.Cos(an);
            }
            else
            {
                if (camara_rot)
                {
                    GuiController.Instance.RotCamera.targetObject(mesh.BoundingBox);
                    GuiController.Instance.CurrentCamera.updateCamera();
                }
                else
                {
                    GuiController.Instance.RotCamera.CameraCenter   = new Vector3(0, 200, 0);
                    GuiController.Instance.RotCamera.CameraDistance = 2000;
                    GuiController.Instance.RotCamera.RotationSpeed  = 1f;
                    GuiController.Instance.RotCamera.ZoomFactor     = 0.1f;
                }
            }

            // --------------------------------------------------------------------
            device.EndScene();
            if (g_pCubeMapAgua == null)
            {
                // solo la primera vez crea el env map del agua
                CrearEnvMapAgua();
                // ya que esta creado, se lo asigno al effecto:
                effect.SetValue("g_txCubeMapAgua", g_pCubeMapAgua);
            }

            // Creo el env map del tanque:
            CubeTexture g_pCubeMap = new CubeTexture(device, 256, 1, Usage.RenderTarget,
                                                     Format.A16B16G16R16F, Pool.Default);
            Surface pOldRT = device.GetRenderTarget(0);

            // ojo: es fundamental que el fov sea de 90 grados.
            // asi que re-genero la matriz de proyeccion
            device.Transform.Projection =
                Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(90.0f), 1f, near_plane, far_plane);

            // Genero las caras del enviroment map
            for (CubeMapFace nFace = CubeMapFace.PositiveX; nFace <= CubeMapFace.NegativeZ; ++nFace)
            {
                Surface pFace = g_pCubeMap.GetCubeMapSurface(nFace, 0);
                device.SetRenderTarget(0, pFace);
                Vector3 Dir, VUP;
                Color   color;
                switch (nFace)
                {
                default:
                case CubeMapFace.PositiveX:
                    // Left
                    Dir   = new Vector3(1, 0, 0);
                    VUP   = new Vector3(0, 1, 0);
                    color = Color.Black;
                    break;

                case CubeMapFace.NegativeX:
                    // Right
                    Dir   = new Vector3(-1, 0, 0);
                    VUP   = new Vector3(0, 1, 0);
                    color = Color.Red;
                    break;

                case CubeMapFace.PositiveY:
                    // Up
                    Dir   = new Vector3(0, 1, 0);
                    VUP   = new Vector3(0, 0, -1);
                    color = Color.Gray;
                    break;

                case CubeMapFace.NegativeY:
                    // Down
                    Dir   = new Vector3(0, -1, 0);
                    VUP   = new Vector3(0, 0, 1);
                    color = Color.Yellow;
                    break;

                case CubeMapFace.PositiveZ:
                    // Front
                    Dir   = new Vector3(0, 0, 1);
                    VUP   = new Vector3(0, 1, 0);
                    color = Color.Green;
                    break;

                case CubeMapFace.NegativeZ:
                    // Back
                    Dir   = new Vector3(0, 0, -1);
                    VUP   = new Vector3(0, 1, 0);
                    color = Color.Blue;
                    break;
                }

                //Obtener ViewMatrix haciendo un LookAt desde la posicion final anterior al centro de la camara
                Vector3 Pos = mesh.Position;
                device.Transform.View = Matrix.LookAtLH(Pos, Pos + Dir, VUP);


                device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, color, 1.0f, 0);
                device.BeginScene();

                //Renderizar
                renderScene(elapsedTime, true);

                device.EndScene();
                //string fname = string.Format("face{0:D}.bmp", nFace);
                //SurfaceLoader.Save(fname, ImageFileFormat.Bmp, pFace);
            }
            // restuaro el render target
            device.SetRenderTarget(0, pOldRT);
            //TextureLoader.Save("test.bmp", ImageFileFormat.Bmp, g_pCubeMap);

            //Genero el shadow map
            RenderShadowMap();

            // Restauro el estado de las transformaciones
            if (timer_preview > 0)
            {
                device.Transform.View = Matrix.LookAtLH(LookFrom, LookAt, new Vector3(0, 1, 0));
            }
            else
            {
                GuiController.Instance.CurrentCamera.updateViewMatrix(device);
            }
            device.Transform.Projection =
                Matrix.PerspectiveFovLH(Geometry.DegreeToRadian(45.0f),
                                        aspectRatio, near_plane, far_plane);

            // Cargo las var. del shader:
            effect.SetValue("g_txCubeMap", g_pCubeMap);
            effect.SetValue("fvLightPosition", new Vector4(0, 400, 0, 0));
            effect.SetValue("fvEyePosition",
                            TgcParserUtils.vector3ToFloat3Array(timer_preview > 0 ? LookFrom :
                                                                GuiController.Instance.RotCamera.getPosition()));
            effect.SetValue("time", time);

            // -----------------------------------------------------
            // dibujo la escena pp dicha:
            device.BeginScene();

            if (tipo_vista != 1)
            {
                // con shaders :
                if (tipo_vista == 2)
                {
                    // dibujo en una vista:
                    device.Viewport = View1;
                }
                else
                {
                    // dibujo en la pantalla completa
                    device.Viewport = ViewF;
                }

                device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, Color.Black, 1.0f, 0);
                // 1ero sin el agua
                renderScene(elapsedTime, false);

                // Ahora dibujo el agua
                device.RenderState.AlphaBlendEnable = true;
                effect.SetValue("aux_Tex", terrain.terrainTexture);
                // posicion de la canoa (divido por la escala)
                effect.SetValue("canoa_x", x0 / 10.0f);
                effect.SetValue("canoa_y", z0 / 10.0f);
                piso.Technique = "RenderAgua";
                piso.render();
            }


            if (tipo_vista != 0)
            {
                // sin shaders
                if (tipo_vista == 2)
                {
                    // dibujo en una vista:
                    device.Viewport = View2;
                }
                else
                {
                    // dibujo en la pantalla completa
                    device.Viewport = ViewF;
                }

                device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, Color.Black, 1.0f, 0);
                //Renderizar terreno
                terrain.render();
                //Renderizar SkyBox
                skyBox.render();
                // dibujo el bosque
                foreach (TgcMesh instance in bosque)
                {
                    instance.render();
                }
                // canoa
                ((TgcMesh)canoa).render();
                // tanque
                ((TgcMesh)mesh).render();
                // agua
                Blend ant_src   = device.RenderState.SourceBlend;
                Blend ant_dest  = device.RenderState.DestinationBlend;
                bool  ant_alpha = device.RenderState.AlphaBlendEnable;
                device.RenderState.AlphaBlendEnable = true;
                device.RenderState.SourceBlend      = Blend.SourceColor;
                device.RenderState.DestinationBlend = Blend.InvSourceColor;
                ((TgcMesh)piso).render();
                device.RenderState.SourceBlend      = ant_src;
                device.RenderState.DestinationBlend = ant_dest;
                device.RenderState.AlphaBlendEnable = ant_alpha;
            }

            g_pCubeMap.Dispose();
        }