/// Update shader params loaders for the entity.
/// Shader params loaders are shared by entities, and need to be updated every time an entity is rendered.
void UpdateEntityForRendering( CCopyEntity& entity )
{
BaseEntity& base_entity = *(entity.pBaseEntity);
// light params writer
if( entity.GetEntityFlags() & BETYPE_LIGHTING )
{
UpdateLightInfo( entity );
if( base_entity.MeshProperty().m_pShaderLightParamsLoader )
{
// Set the entity to the light params loader, because a single light params loader
// is shared by all the entities of this base entity.
base_entity.MeshProperty().m_pShaderLightParamsLoader->SetEntity( entity.Self().lock() );
}
}
const float offset_world_transform_threshold = 150000.0f;
if( square(offset_world_transform_threshold) < Vec3LengthSq(entity.GetWorldPose().vPosition) )
{
Camera* pCam = entity.GetStage()->GetCurrentCamera();
if( pCam )
{
sg_pWorldTransLoader->SetActive( true );
sg_pWorldTransLoader->SetCameraPosition( pCam->GetPosition() );
}
else
sg_pWorldTransLoader->SetActive( false );
}
else
sg_pWorldTransLoader->SetActive( false );
}
Result::Name RegisterAsPlanarMirror( CCopyEntity& entity, BasicMesh& mesh, int subset_index )
{
const AABB3& aabb = mesh.GetAABB(subset_index);
EntityRenderManager& entity_render_mgr
= *(entity.GetStage()->GetEntitySet()->GetRenderManager());
// >>> TODO: support planes that are not axis-aligned or facing along the negative half-space
SPlane plane;
int plane_axis = 1;
if( aabb.vMax.x - aabb.vMin.x < 0.001f ) plane_axis = 0;
else if( aabb.vMax.y - aabb.vMin.y < 0.001f ) plane_axis = 1;
else if( aabb.vMax.z - aabb.vMin.z < 0.001f ) plane_axis = 2;
else plane_axis = 1;
plane.normal = Vector3(0,0,0);
plane.normal[plane_axis] = 1;
plane.dist = aabb.vMax[plane_axis];
Result::Name res = entity_render_mgr.AddPlanarReflector( EntityHandle<>( entity.Self() ), plane );
if( res != Result::SUCCESS )
return Result::UNKNOWN_ERROR;
entity.RaiseEntityFlags( BETYPE_PLANAR_REFLECTOR );
// Create shader variable loader for mirror
if( !entity.m_pMeshRenderMethod )
{
if( entity.pBaseEntity->MeshProperty().m_pMeshRenderMethod )
{
entity.m_pMeshRenderMethod
= entity.pBaseEntity->MeshProperty().m_pMeshRenderMethod->CreateCopy();
if( !entity.m_pMeshRenderMethod )
return Result::UNKNOWN_ERROR;
}
else
return Result::UNKNOWN_ERROR;
}
// create a planar reflection entity
// shared_ptr<MeshContainerRenderMethod> pMeshRenderMethodCopy
// = entity.m_pMeshRenderMethod->CreateCopy();
shared_ptr<MirroredSceneTextureParam> pTexParam;
pTexParam.reset( new MirroredSceneTextureParam( EntityHandle<>( entity.Self() ) ) );
pTexParam->m_fReflection = mesh.GetMaterial(subset_index).m_Mat.fReflection;
// pMeshRenderMethodCopy->SetShaderParamsLoaderToAllMeshRenderMethods( pTexParam );
// test - we assume that the entity's mesh is composed of polygons that belong to a single plane.
entity.m_pMeshRenderMethod->SetShaderParamsLoaderToAllMeshRenderMethods( pTexParam );
// Move the indices of the planar reflection subset(s)
// to the render method of the planar reflection entity
return Result::SUCCESS;
}
void UpdateLightInfo( CCopyEntity& entity )
{
if( entity.Lighting() )
{
if( entity.sState & CESTATE_LIGHT_INFORMATION_INVALID )
{
// need to update light information - find lights that reaches to this entity
entity.ClearLights();
entity.GetStage()->GetEntitySet()->UpdateLights( &entity );
entity.sState &= ~CESTATE_LIGHT_INFORMATION_INVALID;
}
}
}