Method createBox

src/IECoreScene/MeshPrimitive.cpp:658–734

}

MeshPrimitivePtr MeshPrimitive::createBox( const Box3f &b )
{
	std::string interpolation = "linear";
	vector< V3f > p;
	std::vector<int> verticesPerFace {
		4, 4, 4, 4, 4, 4
	};
	std::vector<int> vertexIds {
		3,2,1,0,
		1,2,5,4,
		4,5,7,6,
		6,7,3,0,
		2,3,7,5,
		0,1,4,6
	};

	p.push_back( V3f( b.min.x, b.min.y, b.min.z ) );	// 0
	p.push_back( V3f( b.max.x, b.min.y, b.min.z ) );	// 1
	p.push_back( V3f( b.max.x, b.max.y, b.min.z ) );	// 2
	p.push_back( V3f( b.min.x, b.max.y, b.min.z ) );	// 3
	p.push_back( V3f( b.max.x, b.min.y, b.max.z ) );	// 4
	p.push_back( V3f( b.max.x, b.max.y, b.max.z ) );	// 5
	p.push_back( V3f( b.min.x, b.min.y, b.max.z ) );	// 6
	p.push_back( V3f( b.min.x, b.max.y, b.max.z ) );	// 7

	MeshPrimitivePtr result = new MeshPrimitive( new IntVectorData(verticesPerFace), new IntVectorData(vertexIds), interpolation, new V3fVectorData(p) );


	V2fVectorDataPtr uvData = new V2fVectorData;
	uvData->setInterpretation( GeometricData::UV );
	std::vector<Imath::V2f> &uvs = uvData->writable();

	for( int i = 0; i < 5; i++ )
	{
		uvs.push_back( Imath::V2f( 0.375f, 0.25f * i ) );
		uvs.push_back( Imath::V2f( 0.625f, 0.25f * i ) );
	}

	for( int i = 0; i < 2; i++ )
	{
		uvs.push_back( Imath::V2f( 0.125f, 0.25f * i ) );
		uvs.push_back( Imath::V2f( 0.875f, 0.25f * i ) );
	}

	std::vector<int> uvIndices {
		4,5,7,6,
		11,13,3,1,
		1,3,2,0,
		0,2,12,10,
		5,4,2,3,
		6,7,9,8,
	};

	result->variables["uv"] = PrimitiveVariable( PrimitiveVariable::FaceVarying, uvData, new IntVectorData ( uvIndices ) );

	std::vector<Imath::V3f> normals {
		Imath::V3f( 0, 0, 1 ),
		Imath::V3f( 0, 0, -1 ),