//------------------------------------------------------------------------
// Render the vegetation object.
//------------------------------------------------------------------------
void etVegetationObject::RenderObject(void)
{
FlyRenderEffectInstance* pInstance;
float fCamDist = sqrtf(m_fSqrDistToCamera) - m_WorldBBox.GetBoundingRadius();
if( m_Type == VGT_POLYGON )
{
FlyRenderMaterial* pMaterial = m_Renderables[0]->GetRenderMaterial();
pInstance = pMaterial->GetActiveRenderEffectInstance();
*pInstance->GetParameterByIndex(0) = fCamDist;
*pInstance->GetParameterByIndex(1) = m_fBeyondDist;
m_Renderables[0]->AddToRenderQueue();
}
else
{
MaterialList::iterator mat;
for( mat=m_Materials.begin();mat!=m_Materials.end();mat++ )
{
pInstance = (*mat)->GetActiveRenderEffectInstance();
*pInstance->GetParameterByIndex(0) = fCamDist;
*pInstance->GetParameterByIndex(1) = m_fBeyondDist;
}
RenderableList::iterator itr;
for( itr=m_Renderables.begin();itr!=m_Renderables.end();itr++ )
(*itr)->AddToRenderQueue();
}
}
//------------------------------------------------------------------------
// Build the mesh renderable object.
//------------------------------------------------------------------------
HRESULT etVegetationObject::BuildMeshRenderable(void)
{
std::string sMatName;
// Get the pointer to the resouceManager.
FlyResourceManager* pResMgr = etCoreManager::Instance().GetResourceManager();
// 1. Create the render materials.
for( UINT i=0;i<m_pMesh->GetNumMaterials();i++ )
{
char cTemp[20];
FlyRenderMaterial* pMaterial;
sprintf( cTemp,"_%d",i );
sMatName = "vegetation_" + m_sName + cTemp;
pMaterial = pResMgr->CreateMaterial( sMatName.c_str() );
if( !pMaterial ) return FLY_OUTOFMEMORY;
FlyRenderEffect* pEffect = etCoreManager::Instance().GetVegetationFX();
pMaterial->AddNewTechnique( pEffect->GetTechniqueByIndex(1) );
pMaterial->SetActiveTechnique( 0 );
FlyRenderEffectInstance* pInstance = pMaterial->GetActiveRenderEffectInstance();
*pInstance->GetParameterByIndex(2) = m_pMesh->GetMaterial(i)->pTexture;
m_Materials.push_back( pMaterial );
}
// 2. Create the renderable objects.
for( i=0;i<m_pMesh->GetNumSubMeshes();i++ )
{
FlySubMesh* pSubMesh = m_pMesh->GetSubMesh( i );
// Create a new renderable.
etVegetationRenderable* pObject = new etVegetationRenderable( this );
if( !pObject ) return FLY_OUTOFMEMORY;
pObject->m_nNumVerts = pSubMesh->GetNumVerts();
pObject->m_nNumIndis = pSubMesh->GetNumIndis();
pObject->m_nNumPrims = pSubMesh->GetNumPrims();
pObject->m_pVB = pSubMesh->GetVertexBuffer();
pObject->m_pIB = pSubMesh->GetIndexBuffer();
pObject->SetRenderMaterial( m_Materials[pSubMesh->GetRenderMaterial()] );
pObject->m_BBox = pSubMesh->GetBoundingBox();
// Add the new object to list.
m_Renderables.push_back( pObject );
}
// Set the local boundingBox.
m_Bounds = m_pMesh->GetBoundingBox();
return FLY_OK;
}
//------------------------------------------------------------------------
// Set the scale for the main texture.
// ----------------------------------------------------------------------
// Param -> IN:
// float: Scale of the main texture.
//------------------------------------------------------------------------
void etTile::SetMainScale( float fScale )
{
m_fMainScale = fScale;
FlyRenderEffectInstance* pGPUProgram;
for( int i=0;i<4;i++ )
{
pGPUProgram = m_pRenderable->m_pMaterial->GetRenderEffectInstance(i);
*pGPUProgram->GetParameterByIndex(6) = fScale;
}
}
//------------------------------------------------------------------------
// Set the main texture for the terrain tile.
// ----------------------------------------------------------------------
// Param -> IN:
// FlyTexture*: Pointer to the main texture.
//------------------------------------------------------------------------
void etTile::SetMainTexture( FlyTexture* pTexture )
{
if( !pTexture )
pTexture = m_pLevel->GetDefaultTexture();
FlyRenderEffectInstance* pGPUProgram;
for( int i=0;i<4;i++ )
{
pGPUProgram = m_pRenderable->m_pMaterial->GetRenderEffectInstance(i);
*pGPUProgram->GetParameterByIndex(0) = pTexture;
}
m_pMainTexture = pTexture;
}
//------------------------------------------------------------------------
// Set the detail layer's scale for the tile.
// ----------------------------------------------------------------------
// Param -> IN:
// int: Index of the detail layer.
// float: Scale of the detail layer.
//------------------------------------------------------------------------
void etTile::SetDetailScale( int nIndex,float fScale )
{
FlyRenderEffectInstance* pGPUProgram;
if( nIndex >= 0 && nIndex < 4 )
{
m_fDetailScale[nIndex] = fScale;
for( int i=0;i<4;i++ )
{
pGPUProgram = m_pRenderable->m_pMaterial->GetRenderEffectInstance(i);
*pGPUProgram->GetParameterByIndex(7+nIndex) = fScale;
}
}
}
//------------------------------------------------------------------------
// Set the detail texture for the tile.
// ----------------------------------------------------------------------
// Param -> IN:
// int: Index of the terrain tile.
// FlyTexture*: Pointer to the texture.
//------------------------------------------------------------------------
void etTile::SetDetailTexture( int nIndex,FlyTexture* pTexture )
{
FlyRenderEffectInstance* pGPUProgram;
if( nIndex >= 0 && nIndex < 4 )
{
m_pDetails[nIndex] = pTexture;
for( int i=0;i<4;i++ )
{
pGPUProgram = m_pRenderable->m_pMaterial->GetRenderEffectInstance(i);
*pGPUProgram->GetParameterByIndex(2+nIndex) = pTexture;
}
if( !pTexture ) SetDetailScale( nIndex,0.0f );
}
}
//------------------------------------------------------------------------
// Initialize the terrain tile.
// ----------------------------------------------------------------------
// Param -> IN:
// int,int: Position where we start to read the height data.
// const float*: Pointer to the height data.
//------------------------------------------------------------------------
HRESULT etTile::Initialize( int startx,int startz,const float* pHeightData )
{
m_nStartX = startx;
m_nStartZ = startz;
// Get the resourceManager.
FlyResourceManager* pResMgr = etCoreManager::Instance().GetResourceManager();
// Create the shared vertex buffer.
UINT nTileSize = m_pLevel->GetTileSize();
m_pVB = pResMgr->MakeVertexBuffer( (nTileSize+1)*(nTileSize+1)*sizeof(VERTEX2T),
BU_WRITEONLY,MM_MANAGED );
if( !m_pVB ) return FLY_CREATEBUFFER;
float fMinHeight = 0.0f;
float fMaxHeight = 0.0f;
int endx = startx + nTileSize + 1;
int endz = startz + nTileSize + 1;
VERTEX2T* pVerts = (VERTEX2T*)m_pVB->Lock( 0,(nTileSize+1)*(nTileSize+1)*sizeof(VERTEX2T),LOCK_NORMAL );
for( int j=startz;j<endz;j++ )
{
for( int i=startx;i<endx;i++ )
{
float fHeight = pHeightData[j*(m_pLevel->GetTerrainSize()+1)+i];
fHeight *= m_pLevel->GetHeightScale();
pVerts->x = (float)i * m_pLevel->GetLengthPerUnit();
pVerts->y = fHeight;
pVerts->z = (float)j * m_pLevel->GetLengthPerUnit();
pVerts->vN[0] = 0.0f;
pVerts->vN[1] = 1.0f;
pVerts->vN[2] = 0.0f;
pVerts->tu0 = ((float)i / (float)nTileSize);
pVerts->tv0 = ((float)j / (float)nTileSize);
pVerts->tu1 = ((float)i / (float)m_pLevel->GetTerrainSize());
pVerts->tv1 = ((float)j / (float)m_pLevel->GetTerrainSize());
pVerts++;
if( fHeight < fMinHeight ) fMinHeight = fHeight;
if( fHeight > fMaxHeight ) fMaxHeight = fHeight;
}
}
m_pVB->Unlock();
// Set the boundingBox.
m_Bounds.vcMin.x = (float)startx * m_pLevel->GetLengthPerUnit();
m_Bounds.vcMin.y = fMinHeight - 1.0f;
m_Bounds.vcMin.z = (float)startz * m_pLevel->GetLengthPerUnit();
m_Bounds.vcMax.x = (float)(endx-1) * m_pLevel->GetLengthPerUnit();
m_Bounds.vcMax.y = fMaxHeight + 1.0f;
m_Bounds.vcMax.z = (float)(endz-1) * m_pLevel->GetLengthPerUnit();
// Set the boundingRect.
m_BRect.SetMinPoint( m_Bounds.vcMin.x,m_Bounds.vcMin.z );
m_BRect.SetMaxPoint( m_Bounds.vcMax.x,m_Bounds.vcMax.z );
// Create the renderable object for the tile.
m_pRenderable = new etTileRenderable( this );
m_pRenderable->m_BBox = m_Bounds;
m_pRenderable->m_pVB = m_pVB;
m_pRenderable->m_nNumVerts = (nTileSize+1)*(nTileSize+1);
// Create the renderable object when tile is selected.
m_pSelected = new etTileSelected( this );
m_pSelected->BuildGeometry();
FlyRenderEffect* pEffect = etCoreManager::Instance().GetTerrainFX();
m_pRenderable->m_pMaterial->AddNewTechnique( pEffect->GetTechniqueByIndex(0) );
m_pRenderable->m_pMaterial->AddNewTechnique( pEffect->GetTechniqueByIndex(1) );
m_pRenderable->m_pMaterial->AddNewTechnique( pEffect->GetTechniqueByIndex(2) );
m_pRenderable->m_pMaterial->AddNewTechnique( pEffect->GetTechniqueByIndex(3) );
m_pRenderable->m_pMaterial->SetActiveTechnique( 0 );
// Initialize the default GPU parameters.
FlyRenderEffectInstance* pGPUProgram;
FlyVector vLightDir = m_pManager->GetLightDirection();
vLightDir.Normalize();
for( int i=0;i<4;i++ )
{
pGPUProgram = m_pRenderable->m_pMaterial->GetRenderEffectInstance(i);
*pGPUProgram->GetParameterByIndex(0) = m_pMainTexture;
*pGPUProgram->GetParameterByIndex(1) = m_pLevel->GetDetailLayer()->GetTexture();
*pGPUProgram->GetParameterByIndex(2) = m_pDetails[0];
*pGPUProgram->GetParameterByIndex(3) = m_pDetails[1];
*pGPUProgram->GetParameterByIndex(4) = m_pDetails[2];
*pGPUProgram->GetParameterByIndex(5) = m_pDetails[3];
*pGPUProgram->GetParameterByIndex(6) = m_fMainScale;
*pGPUProgram->GetParameterByIndex(7) = m_fDetailScale[0];
*pGPUProgram->GetParameterByIndex(8) = m_fDetailScale[1];
*pGPUProgram->GetParameterByIndex(9) = m_fDetailScale[2];
*pGPUProgram->GetParameterByIndex(10) = m_fDetailScale[3];
*pGPUProgram->GetParameterByIndex(11) = m_pManager->GetLightingMode();
*pGPUProgram->GetParameterByIndex(12) = vLightDir;
*pGPUProgram->GetParameterByIndex(13) = *((FlyVector*)&m_pManager->GetLightAmbient());
*pGPUProgram->GetParameterByIndex(14) = *((FlyVector*)&m_pManager->GetLightDiffuse());
*pGPUProgram->GetParameterByIndex(16) = *((FlyVector*)&m_pManager->GetWireColor());
}
return FLY_OK;
}
//------------------------------------------------------------------------
// Build the polygon renderable object.
//------------------------------------------------------------------------
HRESULT etVegetationObject::BuildPolygonRenderable( float fWidth,float fHeight,UINT nNumPolygons,
const etFloatRect& texRect )
{
std::string sMatName;
// Get the pointer to the sceneManager.
etSceneManager* pManager = (etSceneManager*)etCoreManager::Instance().GetSceneManager();
// Create the renderable object.
etVegetationRenderable* pRenderable = new etVegetationRenderable( this );
if( !pRenderable ) return FLY_OUTOFMEMORY;
pRenderable->m_nNumVerts = nNumPolygons * 4;
pRenderable->m_nNumIndis = nNumPolygons * 6;
pRenderable->m_nNumPrims = nNumPolygons * 2;
// Get the pointer to the resourceManager.
FlyResourceManager* pResMgr = etCoreManager::Instance().GetResourceManager();
// Create the vertex buffer.
pRenderable->m_pVB = pResMgr->MakeVertexBuffer( sizeof(VERTEXL)*pRenderable->m_nNumVerts,
BU_WRITEONLY,MM_MANAGED );
if( !pRenderable->m_pVB ) return FLY_CREATEBUFFER;
VERTEXL* pVerts = (VERTEXL*)pRenderable->m_pVB->Lock( LOCK_NORMAL );
// Create the index buffer.
pRenderable->m_pIB = pResMgr->MakeIndexBuffer( sizeof(WORD)*pRenderable->m_nNumIndis,
BU_WRITEONLY,MM_MANAGED,IF_INDEX16 );
if( !pRenderable->m_pIB ) return FLY_CREATEBUFFER;
WORD* pIndis = (WORD*)pRenderable->m_pIB->Lock( LOCK_NORMAL );
float fAngle = FLY_PI / nNumPolygons;
float fRadius = fWidth / 2.0f;
UINT nVertOffset = 0;
for( int i=0;i<nNumPolygons;i++ )
{
float fX1 = -fRadius * cosf( fAngle*i );
float fZ1 = fRadius * sinf( fAngle*i );
float fX2 = -fRadius * cosf( fAngle*i+FLY_PI );
float fZ2 = fRadius * sinf( fAngle*i+FLY_PI );
pVerts->x = fX1;
pVerts->y = -fHeight / 2.0f;
pVerts->z = fZ1;
pVerts->color = 0xffffffff;
pVerts->tu = texRect.GetMinPointX();
pVerts->tv = texRect.GetMaxPointZ();
pVerts++;
pVerts->x = fX1;
pVerts->y = fHeight / 2.0f;
pVerts->z = fZ1;
pVerts->color = 0xffffffff;
pVerts->tu = texRect.GetMinPointX();
pVerts->tv = texRect.GetMinPointZ();
pVerts++;
pVerts->x = fX2;
pVerts->y = fHeight / 2.0f;
pVerts->z = fZ2;
pVerts->color = 0xffffffff;
pVerts->tu = texRect.GetMaxPointX();
pVerts->tv = texRect.GetMinPointZ();
pVerts++;
pVerts->x = fX2;
pVerts->y = -fHeight / 2.0f;
pVerts->z = fZ2;
pVerts->color = 0xffffffff;
pVerts->tu = texRect.GetMaxPointX();
pVerts->tv = texRect.GetMaxPointZ();
pVerts++;
*pIndis++ = 0 + nVertOffset;
*pIndis++ = 1 + nVertOffset;
*pIndis++ = 2 + nVertOffset;
*pIndis++ = 2 + nVertOffset;
*pIndis++ = 3 + nVertOffset;
*pIndis++ = 0 + nVertOffset;
nVertOffset += 4;
}
pRenderable->m_pVB->Unlock();
pRenderable->m_pIB->Unlock();
// Calculate the boundingBox.
pRenderable->m_BBox.vcMin.Set( -fRadius,-fHeight/2.0f,-fRadius );
pRenderable->m_BBox.vcMax.Set( fRadius, fHeight/2.0f, fRadius );
// Create the render material for the object.
sMatName = "vegetation_" + m_sName;
pRenderable->m_pMaterial = pResMgr->CreateMaterial( sMatName.c_str() );
FlyRenderEffect* pEffect = etCoreManager::Instance().GetVegetationFX();
pRenderable->m_pMaterial->AddNewTechnique( pEffect->GetTechniqueByIndex(0) );
pRenderable->m_pMaterial->SetActiveTechnique( 0 );
FlyRenderEffectInstance* pInstance = pRenderable->m_pMaterial->GetActiveRenderEffectInstance();
*pInstance->GetParameterByIndex(2) = m_pTexture;
// Set the local boundingBox.
m_Bounds = pRenderable->m_BBox;
m_Renderables.push_back( pRenderable );
return FLY_OK;
}
