Irrlicht Engine

Posted: **Tue Feb 14, 2012 10:59 am**

the scenenode code is same as other custom scenenodes, but mesh do not output on screen absolutely.
I don't know what problem is exist in my source code.

Code: Select all

 
// IAdvencedTerrainSceneNode.h
 
#ifndef __I_ADVENCEDTERRAIN_SCENE_NODE_H__
#define __I_ADVENCEDTERRAIN_SCENE_NODE_H__
 
#include <irrlicht.h>
#include "Mapdata.h"
#include "SMaterial.h"
 
#define TILE_SIZE 1.0f
 
namespace irr
{
using namespace video;
namespace io
{
        class IReadFile;
} // end namespace io
namespace scene
{
        class IMesh;
 
        class IAdvencedTerrainSceneNode : public IMeshSceneNode
        {
        public:
                //! Constructor
                IAdvencedTerrainSceneNode(
                        ISceneNode* parent, 
                        ISceneManager* mgr, 
                        s32 id,
                        CMapdata * pMap);
                ~IAdvencedTerrainSceneNode();
                IMesh * CreateMesh();
                
                
                virtual void render();
                virtual const core::aabbox3d<f32>& getBoundingBox() const
                {
                        return m_pMesh->getBoundingBox();
                }
                virtual u32 getMaterialCount() const
                {
                        return 0;
                }
        
                virtual video::SMaterial& getMaterial(u32 i)
                {
                        return m_Material;
                }
                
                // IMeshSceneNode 
                virtual void setMesh(IMesh* mesh) {};
                virtual IMesh* getMesh(void) { return m_pMesh; }
                virtual void setReadOnlyMaterials(bool readonly) {}
                virtual bool isReadOnlyMaterials() const { return false; }
 
        protected:
                IMesh * m_pMesh;
                CMapdata * m_pMap;
                IDynamicMeshBuffer * m_RenderBuffer;
                SMaterial m_Material;
        };
 
} // end namespace scene
} // end namespace irr
 
 
#endif // __I_TERRAIN_SCENE_NODE_H__

mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Code: Select all

 
// IAdvencedTerrainSceneNode.cpp
 
#include "IAdvencedTerrainSceneNode.h"
 
 
using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
 
IAdvencedTerrainSceneNode::IAdvencedTerrainSceneNode(
        ISceneNode* parent, 
        ISceneManager* mgr, 
        s32 id,
        CMapdata * pMap) 
        : IMeshSceneNode(parent,mgr,id)
{
        m_pMesh = NULL;
        //m_pMaterial = NULL; 
        m_pMap = pMap;
        
        if (m_pMesh)
                m_pMesh->drop();
        m_pMesh = CreateMesh();
        m_Material.Wireframe = false;
        m_Material.Lighting = false;
        //if (m_pMaterial)
        //      delete m_pMaterial;
        //m_pMaterial = CreateMaterial();
}
IAdvencedTerrainSceneNode::~IAdvencedTerrainSceneNode()
{
        if (m_pMesh)
                m_pMesh->drop();
        //if (m_pMaterial)
        //      delete m_pMaterial;
}
IMesh* IAdvencedTerrainSceneNode::CreateMesh()
{
        int i,j, iWidth=m_pMap->m_iMapwidth, iLength=m_pMap->m_iMaplength;
        
        SMeshBuffer* pBuffer = new SMeshBuffer();
 
 
        S3DVertex vertex;
 
        vertex.Color = SColor(255,255,255,255);
        for (i=0; i<iWidth; i++)
        {
                for(j=0; j<iLength; j++)
                {
                        
                        vertex.Pos.X = i*TILE_SIZE;
                        vertex.Pos.Z = j*TILE_SIZE;
                        vertex.Pos.Y = 0.0f;
                        
                        vertex.Normal = vertex.Pos;
                        
                        vertex.TCoords.X = 0.0f;
                        vertex.TCoords.Y = 0.0f;
                        
                        pBuffer->Vertices.push_back(vertex);
                        
                        
                        vertex.Pos.X = (i+1)*TILE_SIZE;
                        vertex.Pos.Z = j*TILE_SIZE;
                        vertex.Pos.Y = 0.0f;
                        
                        vertex.Normal = vertex.Pos;
                        
                        vertex.TCoords.X = 1.0f;
                        vertex.TCoords.Y = 0.0f;
                        
                        pBuffer->Vertices.push_back(vertex);
                        
                        
                        vertex.Pos.X = i*TILE_SIZE;
                        vertex.Pos.Z = (j+1)*TILE_SIZE;
                        vertex.Pos.Y = 0.0f;
                        
                        vertex.Normal = vertex.Pos;
                        
                        vertex.TCoords.X = 0.0f;
                        vertex.TCoords.Y = 1.0f;
                        
                        pBuffer->Vertices.push_back(vertex);
                        
                        
                        vertex.Pos.X = (i+1)*TILE_SIZE;
                        vertex.Pos.Z = (j+1)*TILE_SIZE;
                        vertex.Pos.Y = 0.0f;
                        
                        vertex.Normal = vertex.Pos;
                        
                        vertex.TCoords.X = 1.0f;
                        vertex.TCoords.Y = 1.0f;
                        
                        pBuffer->Vertices.push_back(vertex);
                }
        }
        int _WL = iWidth * iLength;
        for (i=0; i<_WL; i++)
        {
                pBuffer->Indices.push_back(4*i + 1);
                pBuffer->Indices.push_back(4*i + 2);
                pBuffer->Indices.push_back(4*i);
                        
                pBuffer->Indices.push_back(4*i + 1);
                pBuffer->Indices.push_back(4*i + 3);
                pBuffer->Indices.push_back(4*i + 2);
                
                /*pBuffer->Indices.push_back(4*i);
                pBuffer->Indices.push_back(4*i + 2);
                pBuffer->Indices.push_back(4*i + 1);
                        
                pBuffer->Indices.push_back(4*i + 2);
                pBuffer->Indices.push_back(4*i + 3);
                pBuffer->Indices.push_back(4*i + 1);*/
        }
 
        pBuffer->recalculateBoundingBox();
        
        SMesh* mesh = new irr::scene::SMesh();
        
        mesh->addMeshBuffer(pBuffer);
        mesh->recalculateBoundingBox();
        
        pBuffer->drop();
 
        return mesh;
}
 
 
void IAdvencedTerrainSceneNode::render()
{
        
        IVideoDriver *driver = SceneManager->getVideoDriver();
        driver->setMaterial(getMaterial(0));
        driver->setTransform(irr::video::ETS_WORLD,AbsoluteTransformation);
        
        driver->drawMeshBuffer(m_pMesh->getMeshBuffer(0));
        if(DebugDataVisible)
        {
                driver->draw3DBox(m_pMesh->getBoundingBox(), irr::video::SColor(255,255,0,0));
        }
}

Posted: **Tue Feb 14, 2012 11:05 am**

Too much code ... but on first view it seems that getMaterialCount returns 0, probably should be 1 instead.
Hint: you can use code flags in this forum for nicer formating of code.

Posted: **Tue Feb 14, 2012 11:10 am**

getMaterialCount return 1 in previous code, but doesn't work. return 0 is what modified recently

Posted: **Tue Feb 14, 2012 12:58 pm**

Yeah, must be 1 at least, otherwise strange material problems can occur. Here, I'd suggest to disable culling (not sure if you update the bounding box) and backface culling (in case you have a wrong winding order).
In case you just need a manually created mesh, the suggested way is to create a simple SMesh anyway, instead of a custom scene node. Those are just for implementing specialized rendering techniques.

Posted: **Tue Feb 14, 2012 2:40 pm**

i do disable frontface & backface culling and change return value of getMaterialCount to 1. but it still doesn't work.

i need to let my team members who have no 3D knowledge can edit map. in addition completed scene node algorism is in my notebook... so i should not give up custom scene node.

Posted: **Tue Feb 14, 2012 3:53 pm**

Make sure to disable lighting (at least for testing) and maybe try to enable wireframe. This will sometimes show something even if the full picture is broken.

Posted: **Tue Feb 14, 2012 4:07 pm**

lighting is already disabled. i try to enable wireframe but nothing is shown.

* setting code is :

CMapdata map;

IAdvencedTerrainSceneNode *pNode = NULL;
pNode = new IAdvencedTerrainSceneNode(smgr->getRootSceneNode(), smgr, 1, &map);
pNode->drop();

Posted: **Tue Feb 14, 2012 4:53 pm**

OFF-TOPIC

hybrid wrote:Make sure to disable lighting (at least for testing) and maybe try to enable wireframe. This will sometimes show something even if the full picture is broken.

This is hybrid's 13000 post.

Posted: **Wed Feb 15, 2012 3:42 am**

i do hybrid's opinion but no one has shown.

Posted: **Wed Feb 15, 2012 8:23 pm**

i don't know but i miss the OnRegister-procedure. Can it be?

Posted: **Wed Feb 15, 2012 8:25 pm**

hi

i think the node is not registered to the render process

maybe add something like this

Code: Select all

 
//! frame
void IAdvencedTerrainSceneNode::OnRegisterSceneNode()
{
        if (IsVisible)
                SceneManager->registerNodeForRendering(this);
 
        ISceneNode::OnRegisterSceneNode();
}

btw it is called Advanced

edit: damn to late^^

Posted: **Thu Feb 16, 2012 1:11 am**

it works Well !!
Thank you zerochan. I never forget your help in my life.

Irrlicht Engine

My Custom SceneNode doesn't work

My Custom SceneNode doesn't work

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Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work

Re: My Custom SceneNode doesn't work