void GLC_Octree::setDepth(int depth)
{
m_OctreeDepth= depth;
if (NULL != m_pRootNode)
{
updateSpacePartitioning();
}
}
void GLC_Octree::updateViewableInstances(const GLC_Frustum& frustum)
{
if (NULL == m_pRootNode)
{
updateSpacePartitioning();
}
m_pRootNode->updateViewableInstances(frustum);
}
QList<GLC_3DViewInstance*> GLC_Octree::listOfIntersectedInstances(const GLC_BoundingBox& bBox)
{
if (NULL == m_pRootNode)
{
updateSpacePartitioning();
}
return m_pRootNode->setOfIntersectedInstances(bBox).toList();
}
void GLC_Octree::createBox(GLC_Material* pMat, GLC_3DViewCollection* pCol)
{
if (NULL == m_pRootNode)
{
updateSpacePartitioning();
}
if (NULL == pCol) pCol= m_pCollection;
if (!m_pRootNode->isEmpty())
{
createBoxWithMaterial(pCol, m_pRootNode, pMat);
}
}
//--------------------------------------------------------------
void ofApp::updateLinesMesh()
{
float currTime = ofGetElapsedTimef();
updateSpacePartitioning();
// Now we update the line mesh, to do this we check each particle against every other particle, if they are
// within a certain distance we draw a line between them. As this quickly becoems a pretty insane amount
// of checks, we use our space partitioning scheme to optimize it all a little bit.
linesMesh.clear();
linesMesh.setMode( OF_PRIMITIVE_LINES );
ofFloatColor scratchColor;
scratchColor.set( 1.0f, 1.0f, 1.0f );
lineConnectionMaxDistance = ofMap( cosf( currTime / 7.0f ) , -1.0f, 1.0f, lineConnectionMaxDistanceMin, lineConnectionMaxDistanceMax); // ofGetMouseY() / 10.0f;
// how many slots do we need to check on each side?
int spacePartitioningIndexDistanceX = ceil(lineConnectionMaxDistance / spacePartitioningGridWidth);
int spacePartitioningIndexDistanceY = ceil(lineConnectionMaxDistance / spacePartitioningGridHeight);
for( unsigned int particleIndex = 0; particleIndex < demos.size(); particleIndex++ )
{
DemoSphere* tmpParticle = &demos.at(particleIndex);
/*
if( tmpParticle->isMouseOvered )
{
continue; // skip to the next particle in the loop
}*/
// the particle knows where it is in the space partitioning grid, figure out which indices to loop between based
// on how many slots the maximum line distance can cover, then do a bounds check.
int startIndexX = tmpParticle->spacePartitioningIndexX - spacePartitioningIndexDistanceX;
if( startIndexX < 0 ) { startIndexX = 0; } if( startIndexX >= spacePartitioningResX ) { startIndexX = spacePartitioningResX-1;}
int endIndexX = tmpParticle->spacePartitioningIndexX + spacePartitioningIndexDistanceX;
if( endIndexX < 0 ) { endIndexX = 0; } if( endIndexX >= spacePartitioningResX ) { endIndexX = spacePartitioningResX-1;}
int startIndexY = tmpParticle->spacePartitioningIndexY - spacePartitioningIndexDistanceY;
if( startIndexY < 0 ) { startIndexY = 0; } if( startIndexY >= spacePartitioningResY ) { startIndexY = spacePartitioningResY-1;}
int endIndexY = tmpParticle->spacePartitioningIndexY + spacePartitioningIndexDistanceY;
if( endIndexY < 0 ) { endIndexY = 0; } if( endIndexY >= spacePartitioningResY ) { endIndexY = spacePartitioningResY-1;}
for( int y = startIndexY; y < endIndexY; y++ )
{
for( int x = startIndexX; x < endIndexX; x++ )
{
for( unsigned int i = 0; i < spacePartitioningGrid.at(y).at(x).size(); i++ )
{
DemoSphere* tmpOtherParticle = spacePartitioningGrid.at(y).at(x).at(i);
if( tmpOtherParticle->isMouseOvered )
{
continue; // skip to the next particle in the loop
}
if( tmpParticle->myID != tmpOtherParticle->myID )
{
ofVec3f diff = tmpParticle->pos - tmpOtherParticle->pos;
float diffLength = diff.length();
float tmpLineConnectionMaxDistance = lineConnectionMaxDistance;
// lets make the allowed maximum distance smaller the closer we are to the mouse
// tmpLineConnectionMaxDistance *= ofMap( demos[i].mouseDist, mouseAffectionRadius, 0.0f, 0.0f, 1.0f, true ); // the mouse reveals the mesh
tmpLineConnectionMaxDistance *= ofMap( demos[i].mouseDist, mouseAffectionRadius, 0.0f, 1.0f, 0.0f, true ); // mouse takes away the mesh
if( diffLength < tmpLineConnectionMaxDistance )
{
scratchColor.a = 1.0f - (diffLength / tmpLineConnectionMaxDistance);
linesMesh.addVertex( tmpParticle->pos );
//linesMesh.addColor( scratchColor );
linesMesh.addColor( ofColor( tmpParticle->color, (int)(scratchColor.a * 255)) );
linesMesh.addVertex( tmpOtherParticle->pos );
//linesMesh.addColor( scratchColor );
linesMesh.addColor( ofColor( tmpOtherParticle->color, (int)(scratchColor.a * 255)) );
linesMesh.addIndex( linesMesh.getNumVertices() - 2 );
linesMesh.addIndex( linesMesh.getNumVertices() - 1 );
}
}
}
}
}
}
}