void Renderer::Cull( XNA::Frustum* frustum, Transform* pTransform )
{
if (m_Mesh)
{
XNA::OrientedBox objectBox;
for( int i=0; i<m_Mesh->GetNumberOfSubmeshes(); i++ )
{
Submesh* submesh = m_Mesh->GetSubmesh( i );
XMVECTOR extents = XMLoadFloat3( &submesh->GetGeometryChunk()->GetAABB()->Extents );
XMVECTOR scale = XMLoadFloat3( &pTransform->GetScale().intoXMFLOAT3() );
XMVECTOR offset = XMLoadFloat3( &submesh->GetGeometryChunk()->GetAABB()->Center )*scale;
XMVECTOR position = XMVector3Rotate( offset, XMLoadFloat4(&pTransform->GetOrientation().intoXMFLOAT4()) );
position += XMLoadFloat3( &pTransform->GetPosition().intoXMFLOAT3() );
XMStoreFloat3( &objectBox.Center, position );
XMStoreFloat3( &objectBox.Extents, extents*scale );
objectBox.Orientation = pTransform->GetOrientation().intoXMFLOAT4();
if( XNA::IntersectOrientedBoxFrustum( &objectBox, frustum ) > 0 )
m_SubmeshRenderData[i].bVisible = true;
else
m_SubmeshRenderData[i].bVisible = false;
}
}
}
void Renderer::CullLight( SpotLight* light, Transform* pTransform )
{
if (m_Mesh)
{
XNA::OrientedBox objectBox;
XNA::Frustum lightFrustum = light->GetFrustum();
for( int i=0; i<m_Mesh->GetNumberOfSubmeshes(); i++ )
{
if (m_SubmeshRenderData[i].bVisible)
{
Submesh* submesh = m_Mesh->GetSubmesh( i );
XMVECTOR extents = XMLoadFloat3( &submesh->GetGeometryChunk()->GetAABB()->Extents );
XMVECTOR scale = XMLoadFloat3( &pTransform->GetScale().intoXMFLOAT3() );
XMVECTOR offset = XMLoadFloat3( &submesh->GetGeometryChunk()->GetAABB()->Center )*scale;
XMVECTOR position = XMVector3Rotate( offset, XMLoadFloat4(&pTransform->GetOrientation().intoXMFLOAT4()) );
position += XMLoadFloat3( &pTransform->GetPosition().intoXMFLOAT3() );
XMStoreFloat3( &objectBox.Center, position );
XMStoreFloat3( &objectBox.Extents, extents*scale );
objectBox.Orientation = pTransform->GetOrientation().intoXMFLOAT4();
if( XNA::IntersectOrientedBoxFrustum( &objectBox, &lightFrustum ) > 0 )
m_SubmeshRenderData[i].AffectingSpotLights.push_back( light );
}
}
}
}