C++ (Cpp) shared_ptr::ForceUndiceable Examples

Example #1

File: imagebuffer.cpp Project: maya2renderer/maya2renderer

bool CqImageBuffer::CullSurface( CqBound& Bound, const boost::shared_ptr<CqSurface>& pSurface )
{
	// If the primitive is completely outside of the hither-yon z range, cull it.
	if ( Bound.vecMin().z() >= m_optCache.clipFar ||
	     Bound.vecMax().z() <= m_optCache.clipNear )
		return true;

	// This needs to be re-enabled when the RiClippingPlane code is wired up.
#if 0
	if(QGetRenderContext()->clippingVolume().whereIs(Bound) == CqBound::Side_Outside)
	{
		return(true);
	}
#endif

	// If the primitive spans the epsilon plane and the hither plane and can be split,
	if ( Bound.vecMin().z() <= FLT_EPSILON )
	{
		// Mark the primitive as not dicable.
		pSurface->ForceUndiceable();

		CqString objname( "unnamed" );
		const CqString* pattrName = pSurface->pAttributes() ->GetStringAttribute( "identifier", "name" );
		if ( pattrName != 0 )
			objname = pattrName[ 0 ];
		Aqsis::log() << info << "Object \"" << objname.c_str() << "\" spans the epsilon plane" << std::endl;

		if ( pSurface->SplitCount() > m_optCache.maxEyeSplits )
		{
			Aqsis::log() << warning << "Max eyesplits for object \"" << objname.c_str() << "\" exceeded" << std::endl;
			return( true );
		}
		return ( false );
	}

	TqFloat minz = Bound.vecMin().z();
	TqFloat maxz = Bound.vecMax().z();


	// Convert the bounds to raster space.
	CqMatrix mat;
	QGetRenderContext() ->matSpaceToSpace( "camera", "raster", NULL, NULL, QGetRenderContext()->Time(), mat );
	Bound.Transform( mat );

	// Take into account depth-of-field
	if ( QGetRenderContext() ->UsingDepthOfField() )
	{
		const CqVector2D minZCoc = QGetRenderContext()->GetCircleOfConfusion( minz );
		const CqVector2D maxZCoc = QGetRenderContext()->GetCircleOfConfusion( maxz );
		TqFloat cocX = max( minZCoc.x(), maxZCoc.x() );
		TqFloat cocY = max( minZCoc.y(), maxZCoc.y() );
		Bound.vecMin().x( Bound.vecMin().x() - cocX );
		Bound.vecMin().y( Bound.vecMin().y() - cocY );
		Bound.vecMax().x( Bound.vecMax().x() + cocX );
		Bound.vecMax().y( Bound.vecMax().y() + cocY );
	}

	// And expand to account for filter size.
	Bound.vecMin().x( Bound.vecMin().x() - m_optCache.xFiltSize / 2.0f );
	Bound.vecMin().y( Bound.vecMin().y() - m_optCache.yFiltSize / 2.0f );
	Bound.vecMax().x( Bound.vecMax().x() + m_optCache.xFiltSize / 2.0f );
	Bound.vecMax().y( Bound.vecMax().y() + m_optCache.yFiltSize / 2.0f );

	// If the bounds are completely outside the viewing frustum, cull the primitive.
	if( Bound.vecMin().x() > QGetRenderContext()->cropWindowXMax() ||
		Bound.vecMin().y() > QGetRenderContext()->cropWindowYMax() ||
		Bound.vecMax().x() < QGetRenderContext()->cropWindowXMin() ||
		Bound.vecMax().y() < QGetRenderContext()->cropWindowYMin() )
		return ( true );

	// Restore Z-Values to camera space.
	Bound.vecMin().z( minz );
	Bound.vecMax().z( maxz );

	// Cache the Bound.
	pSurface->CacheRasterBound( Bound );
	return ( false );
}