Terrain + water in C#

Ros · Post by **Ros** » Thu Jul 13, 2006 11:41 am

Good day,night everybody!!!

I made some island with Terragen and ScapeMarker.

Now i have a quastion.
How can i add some water to my terrain?

Which code in c# should i use?

DeusXL · Post by **DeusXL** » Thu Jul 13, 2006 1:24 pm

The same as in C++. Look at the C# example n°8 in the Irrlicht SDK

Ros · Post by **Ros** » Thu Jul 13, 2006 11:13 pm

I look in this tut 8 but!!!

this example work with mesh rooms.3ds

Code: Select all

IAnimatedMesh mesh= smgr.GetMesh( 
				path+"room.3ds"); 

			smgr.MeshManipulator.MakePlanarTextureMapping( 
				mesh.GetMesh(0), 0.008f); 

			ISceneNode node = smgr.AddAnimatedMeshSceneNode(mesh, null, 0); 
			node.SetMaterialTexture( 
				0,driver.GetTexture(path+"wall.jpg")); 
			node.GetMaterial(0).EmissiveColor.Set(0,0,0,0); 

//

mesh = smgr.AddHillPlaneMesh("myHill", 
				new Dimension2Df(20,20), 
				new Dimension2D(40,40),new Material(),0, 
				new Dimension2Df(0,0), 
				new Dimension2Df(10,10)); 

			node = smgr.AddWaterSurfaceSceneNode(mesh.GetMesh(0),3.0f,300.0f,30.0f,null,0); //HERE USED ONE MESH!!!NOT HEIGHTMAP!!!
			node.Position=new Vector3D(0,7,0); 

			node.SetMaterialTexture(0, driver.GetTexture(path+"water.jpg")); 
			node.SetMaterialTexture(1, driver.GetTexture(path+"stones.jpg")); 

			node.SetMaterialType(MaterialType.REFLECTION_2_LAYER);

So I should ask little bit another way.

How can I integrete water in example12.cs?

What should i do? [/code]

DeusXL · Post by **DeusXL** » Thu Jul 13, 2006 11:22 pm

Well, theorically your water is placed at a y-level... For instance if you think that every height under WaterLevel is under water and over is... over water.
Then you just create an hill plane mesh which has your terrain's size and placed it at :
vector3(terraincenter.X, WaterLevel, terraincenter.Z)

It's not very clear but it is because there is absolutely no difference between the water in example 8 and integrating water in example 12... Just some values such as the water's positions and hill length change depending on your terrain but all the rest is exactly the same. Take a look at Irrlicht.NET's documentation of AddHillPlaneMesh and AddWaterSurfaceSceneNode

Ros · Post by **Ros** » Fri Jul 14, 2006 1:04 am

hm...I will try to think about this hills...

if i will be have some problems with code can you corect this code later?

Realy i am experimenting now wit exampels and i have only liiiiiiiiiiiiittle plane about possibillity of using this expiriense in futere development...

Thank you DeusXL

Ros · Post by **Ros** » Fri Jul 14, 2006 10:51 pm

This a code where a mistake?

Code: Select all


terrain = smgr.AddTerrainSceneNode(
                path + "/terrain/terrain-heightmap.bmp", null, -1,
                new Vector3D(), new Vector3D(40, 4.4f, 40), new Color(255, 255, 255, 255));

            terrain.SetMaterialFlag(MaterialFlag.LIGHTING, false);
            terrain.SetMaterialType(MaterialType.DETAIL_MAP);
            terrain.SetMaterialTexture(0, driver.GetTexture(path + "/terrain/terrain-texture.jpg"));
            terrain.SetMaterialTexture(1, driver.GetTexture(path + "/terrain/detailmap3.jpg"));



ITriangleSelector selector =
                smgr.CreateTerrainTriangleSelector(terrain, 0);
            terrain.ScaleTexture(1.0f, 20.0f);

IAnimatedMesh mesh = smgr.GetMesh(
            path + "/terrain/terrain-heightmap.bmp");
           
            mesh = smgr.AddHillPlaneMesh("myHill",
            new Dimension2Df(20, 20),
            new Dimension2D(40, 40), new Material(), 0,
            new Dimension2Df(0, 0),
            new Dimension2Df(10, 10));

            terrain = smgr.AddWaterSurfaceSceneNode(mesh.GetMesh(0), 3.0f, 300.0f, 30.0f, null, 0);
            terrain.Position = new Vector3D(0, 7, 0);

            terrain.SetMaterialTexture(0, driver.GetTexture(path + "water.jpg"));
            terrain.SetMaterialTexture(1, driver.GetTexture(path + "stones.jpg"));

            terrain.SetMaterialType(MaterialType.REFLECTION_2_LAYER); 

vs2005 showed: :twisted: 

Error	1	Cannot implicitly convert type 'Irrlicht.Scene.ISceneNode' to 'Irrlicht.Scene.ITerrainSceneNode'. 

what should i change in code? :o

DeusXL · Post by **DeusXL** » Fri Jul 14, 2006 11:05 pm

Where you define :
terrain

Change :

Code: Select all

ISceneNode terrain;

by

Code: Select all

ITerrainSceneNode terrain;

and please don't set the same reference to the water node and the terrain node.
For instance change "terrain = smgr.AddWaterSurfaceSceneNode(mesh.GetMesh(0), 3.0f, 300.0f, 30.0f, null, 0); "
by "ISceneNode water = smgr.AddWaterSurfaceSceneNode(mesh.GetMesh(0), 3.0f, 300.0f, 30.0f, null, 0); "

Ros · Post by **Ros** » Sat Jul 15, 2006 6:57 pm

It`s worked!But look at screenshots http://www.box.net/public/96lidl2gjs Terrain without water!!!
And
http://www.box.net/public/7xmz4akp16With water!!!

code:

Code: Select all

IAnimatedMesh mesh = smgr.GetMesh(
            path + "/terrain/terrain-heightmap.bmp");

            mesh = smgr.AddHillPlaneMesh("myHill",
            new Dimension2Df(20, 20),
            new Dimension2D(40, 40), new Material(), 0,
            new Dimension2Df(0, 0),
            new Dimension2Df(10, 10));

            ISceneNode water = smgr.AddWaterSurfaceSceneNode(mesh.GetMesh(0), 3.0f, 300.0f, 30.0f, null, 0);
            terrain.Position = new Vector3D(0, 7, 0);

            terrain.SetMaterialTexture(0, driver.GetTexture(path + "water.jpg"));
            terrain.SetMaterialTexture(1, driver.GetTexture(path + "detailmap3.jpg"));

            terrain.SetMaterialType(MaterialType.REFLECTION_2_LAYER);

where my misteike?

[/url]

Ros · Post by **Ros** » Wed Jul 19, 2006 8:30 am

I worked almost 3 days with this problem i didn't found any solution.HELP
I need add water in example 12 so that up my water level was island!

DeusXL · Post by **DeusXL** » Wed Jul 19, 2006 8:38 am

Code: Select all

ISceneNode water = smgr.AddWaterSurfaceSceneNode(mesh.GetMesh(0), 3.0f, 300.0f, 30.0f, null, 0);
            terrain.Position = new Vector3D(0, 7, 0);

            terrain.SetMaterialTexture(0, driver.GetTexture(path + "water.jpg"));
            terrain.SetMaterialTexture(1, driver.GetTexture(path + "detailmap3.jpg"));

            terrain.SetMaterialType(MaterialType.REFLECTION_2_LAYER);

Look here !
You are applying the water texture and effect to your terrain not to the water scene node !

Ros · Post by **Ros** » Wed Jul 19, 2006 9:47 am

Ok but i don't have any idei how apply to water scen...

DeusXL · Post by **DeusXL** » Wed Jul 19, 2006 10:43 am

Code: Select all

terrain.Position = new Vector3D(0, 7, 0);

            terrain.SetMaterialTexture(0, driver.GetTexture(path + "water.jpg"));
            terrain.SetMaterialTexture(1, driver.GetTexture(path + "detailmap3.jpg"));

            terrain.SetMaterialType(MaterialType.REFLECTION_2_LAYER);

Replace all "terrain." by "water."...

Ros · Post by **Ros** » Wed Jul 19, 2006 6:30 pm

I alredy understud this

THANK YOU SO MUCH FOR YOUR HELP!!!!

Here is code maybe somebody need this in further:

Code: Select all

/* 
Lets start like the HelloWorld example: We include 
the irrlicht header files and an additional file to be able 
to ask the user for a driver type using the console. 
*/
using System;
using System.Text;
using System.IO;

using Irrlicht;
using Irrlicht.Video;
using Irrlicht.Core;
using Irrlicht.Scene;
using Irrlicht.GUI;

namespace _12.TerrainRendering
{
    class Program : IEventReceiver
    {
        string path = "../../media/";
        ITerrainSceneNode terrain;
        bool isWireframe = false;

        //ISceneNode node=null; 
        /// <summary> 
        /// Main entry point for the program. 
        /// </summary> 
        /// <param name="args">Arguments to pass the software.</param> 
        [STAThread]
        static void Main(string[] args)
        {
            Program prog = new Program();
            prog.run();
        }

        /* In the beginning there is nothing special. We include the needed header files 
              and create an event listener to listen if the user presses the 'W' key so we 
              can switch to wireframe mode and if he presses 'D' we toggle to material 
              between solid and detail mapped. 
        */
        public bool OnEvent(Event p_event)
        {
            // check if user presses the key 'W' or 'D' 
            if (p_event.Type == EventType.KeyInput &&
                !p_event.KeyPressedDown)
            {
                switch (p_event.Key)
                {
                    case KeyCode.KEY_KEY_W:
                        isWireframe = !isWireframe;
                        terrain.SetMaterialFlag(MaterialFlag.WIREFRAME, isWireframe);
                        break;
                    case KeyCode.KEY_KEY_D:
                        terrain.SetMaterialType(
                            terrain.GetMaterial(0).Type == MaterialType.SOLID ?
                            MaterialType.DETAIL_MAP : MaterialType.SOLID);
                        return true;
                }
            }
            return false;
        }

        public void run()
        {
            /* The start of the main function starts like in most other example. 
               We ask the user for the desired renderer and start it up. 
            */

            // ask user for driver 
            DriverType driverType;

            // Ask user to select driver: 
            StringBuilder sb = new StringBuilder();
            sb.Append("Please select the driver you want for this example:\n");
            sb.Append("\n(a) Direct3D 9.0c\n(b) Direct3D 8.1\n(c) OpenGL 1.5");
            sb.Append("\n(d) Software Renderer\n(e)Apfelbaum Software Renderer");
            sb.Append("\n(f) Null Device\n(otherKey) exit\n\n");

            // Get the user's input: 
            TextReader tIn = Console.In;
            TextWriter tOut = Console.Out;
            tOut.Write(sb.ToString());
            string input = tIn.ReadLine();

            // Select device based on user's input: 
            switch (input)
            {
                case "a":
                    driverType = DriverType.DIRECT3D9;
                    break;
                case "b":
                    driverType = DriverType.DIRECT3D8;
                    break;
                case "c":
                    driverType = DriverType.OPENGL;
                    break;
                case "d":
                    driverType = DriverType.SOFTWARE;
                    break;
                case "e":
                    driverType = DriverType.SOFTWARE2;
                    break;
                case "f":
                    driverType = DriverType.NULL_DRIVER;
                    break;
                default:
                    return;
            }

            // Create device and exit if creation fails: 
            IrrlichtDevice device = new IrrlichtDevice(
                driverType, new Dimension2D(640, 480), 32, false, true, true);
            if (device == null)
            {
                tOut.Write("Device creation failed.");
                return;
            }

            /* set this as event receiver*/
            device.EventReceiver = this;
            /*************************************************/
            /* First, we add standard stuff to the scene: A nice irrlicht engine logo, 
               a small help text, a user controlled camera, and we disable the mouse 
               cursor.*/
            ISceneManager smgr = device.SceneManager;
            IVideoDriver driver = device.VideoDriver;
            IGUIEnvironment env = device.GUIEnvironment;

            driver.SetTextureCreationFlag(TextureCreationFlag.ALWAYS_32_BIT, true);

            // add irrlicht logo 
            /*env.AddImage(driver.GetTexture(path + "irrlichtlogoalpha.tga"),
                new Position2D(10, 10), true, null, 0, "");*/

            // add some help text 
            IGUIStaticText text = env.AddStaticText(
                "Press 'W' to change wireframe mode\nPress 'D' to toggle detail map",
                new Rect(10, 453, 200, 475), true, true, null, -1);

            // add camera 
            ICameraSceneNode camera =
                smgr.AddCameraSceneNodeFPS(null, 100.0f, 1200.0f, -1);
            camera.Position = new Vector3D(0, 1000, 0);
            camera.Target = new Vector3D(2397 * 2, 343 * 2, 2700 * 2);
            camera.FarValue = 12000.0f;

            // disable mouse cursor 
            device.CursorControl.Visible = false;
            /* Here comes the terrain renderer scene node: We add it just like any other scene 
               node to the scene using ISceneManager::addTerrainSceneNode(). The only parameter 
               we use is a file name to the heightmap we use. A heightmap is simply a gray 
               scale texture. The terrain renderer loads it and creates the 3D terrain 
               from it. 
               To make the terrain look more big, we change the scale factor of it to 
               (40, 4.4, 40). Because we don't have any dynamic lights in the scene, we 
               switch off the lighting, and we set the file terrain-texture.jpg as texture 
               for the terrain and detailmap3.jpg as second texture, called detail map. 
               At last, we set the scale values for the texture: The first texture will be 
               repeated only one time over the whole terrain, and the second one (detail map) 
               20 times. 
             */
            // add terrain scene node 
            terrain = smgr.AddTerrainSceneNode(
                path + "terrain-heightmap.bmp", null, -1,
                new Vector3D(0, 0, 0), new Vector3D(40, 4.4f, 40), new Color(255, 255, 255, 255));

            terrain.SetMaterialFlag(MaterialFlag.LIGHTING, false);
            terrain.SetMaterialType(MaterialType.DETAIL_MAP);
            terrain.SetMaterialTexture(0, driver.GetTexture(path + "terrain-texture.jpg"));
            terrain.SetMaterialTexture(1, driver.GetTexture(path + "detailmap3.jpg"));


            terrain.ScaleTexture(1.0f, 20.0f);

            /* To be able to do collision with the terrain, we create a triangle selector. 
               If you want to know what triangle selectors do, just take a look into the 
               collision tutorial. The terrain triangle selector works together with the 
               terrain. To demonstrate this, we create a collision response animator and 
               attach it to the camera, so that the camera will not be able to fly through 
               the terrain.*/
            // create triangle selector for the terrain    
            ITriangleSelector selector =
                smgr.CreateTerrainTriangleSelector(terrain, 0);

            // create collision response animator and attach it to the camera 
            ISceneNodeAnimator anim = smgr.CreateCollisionResponseAnimator(
                selector, camera, new Vector3D(60, 100, 60),
                new Vector3D(0, 0, 0),
                new Vector3D(0, 50, 0), 0.0005f);
            camera.AddAnimator(anim);

            //we add the skybox which we already used in lots of Irrlicht examples. 
            driver.SetTextureCreationFlag(TextureCreationFlag.CREATE_MIP_MAPS, false);

            smgr.AddSkyBoxSceneNode(
                driver.GetTexture(path + "irrlicht2_up.jpg"),
                driver.GetTexture(path + "irrlicht2_dn.jpg"),
                driver.GetTexture(path + "irrlicht2_lf.jpg"),
                driver.GetTexture(path + "irrlicht2_rt.jpg"),
                driver.GetTexture(path + "irrlicht2_ft.jpg"),
                driver.GetTexture(path + "irrlicht2_bk.jpg"), null, 0);

            driver.SetTextureCreationFlag(TextureCreationFlag.CREATE_MIP_MAPS, true);

/*adding some water from example 8*/

            IAnimatedMesh mesh = smgr.GetMesh(
            path + "terrain-heightmap.bmp");

            mesh = smgr.AddHillPlaneMesh("myHill",
            new Dimension2Df(20, 20),
            new Dimension2D(90, 90), new Material(), 1,
            new Dimension2Df(0, 0),
            new Dimension2Df(10, 10));

            ISceneNode water = smgr.AddWaterSurfaceSceneNode //!!!!(mesh.GetMesh(0), 3.0f, 300.0f, 30.0f, null, 0);

            water.Position = new Vector3D(5000, 50, 5000);
            water.Scale = new Vector3D(15, 5, 15);
            water.SetMaterialFlag(MaterialFlag.LIGHTING, false);
//this made water visuable, but i can't get the same effect as in example 8 in bin directory...
            water.SetMaterialTexture(0, driver.GetTexture(path + "water.jpg"));
            water.SetMaterialTexture(1, driver.GetTexture(path + "terrain-texture.jpg"));

            water.SetMaterialType(MaterialType.REFLECTION_2_LAYER); 






            /* That's it, draw everything. Now you know how to use terrain 
               in Irrlicht. 
            */
            int lastFPS = -1;

            while (device.Run())
            {
                if (device.WindowActive)
                {
                    device.VideoDriver.BeginScene(true, true, new Color(0, 200, 200, 200));
                    device.SceneManager.DrawAll();
                    device.VideoDriver.EndScene();

                    int fps = device.VideoDriver.FPS;
                    if (lastFPS != fps)
                    {
                        device.WindowCaption = "Irrlicht Engine - Terrain example [" +
                            device.VideoDriver.Name + "] FPS:" + fps.ToString();
                        lastFPS = fps;
                    }
                }
            }


            /* 
            In the end, delete the Irrlicht device. 
            */
            // Instead of device.drop, we'll use: 
            GC.Collect();

        }
    }
}
// Retrieved from "http://www.irrforge.org/index.php/CS_Tutorial_12"
// This page has been accessed 228 times. This page was last modified 06:58, 20 Jan 2006.

Ros · Post by **Ros** » Wed Jan 17, 2007 8:37 pm

I have now littel bit igger quastion.
possible make water a littel TRANSPARENT.
Now i have this
http://www.box.net/public/cieqejalr2
but i want like this:
http://www.earthsculptor.com/uiterrain.jpg
it's possible?

Irrlicht Engine

Terrain + water in C#

Terrain + water in C#

I looked!!

:(

Thanks this worked!

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