• If tmpid is zero and tau is one and kflag is zero, then a Patran Thermal subtype 5 resistor will be made between the radiosity nodes.

• If tmpid is zero and tau is greater than zero but less than one and kflag is zero, then three Patran Thermal resistors, all of subtype 5 will be made. One will join the radiosity nodes and the other two will join the two radiosity nodes to the participating media node.

• If tmpid is zero and tau is zero and kflag is one, then a Patran Thermal subtype 5 resistor will be made between the radiosity nodes.

• If tmpid is zero and tau is greater than zero and kflag is one, then three Patran Thermal resistors, all of subtype 5 will be made. One will join the radiosity nodes and the other two will join the two radiosity nodes to the participating media node.

• If tmpid is not zero and tau is zero and kflag is zero, then three Patran Thermal resistors will be made. One will be a subtype 9 resistor between the radiosity nodes and the other two will be subtype 10 resistors between the two radiosity nodes and the participating media node.

• If tmpid is not zero and tau is zero and kflag is one, then three Patran Thermal resistors will be made. One will be a subtype 11 resistor between the radiosity nodes and the other two will be subtype 12 resistors between the two radiosity nodes and the participating media node.

• If Viewfactor detects a zero valued resistor, then that resistor will not be made.