The HSF version (included as readable text at the beginning of an HSF file) precludes HOOPS toolkits from reading HSF files written by future toolkit versions unless a target version is specified for backward compatibility.
HPS – no equivalent
NOTE: An HSF created by the HPS API is not compatible with 3DF. However, an HSF created by 3DF can be read by HPS.
The table below shows some of the correlation between HOOPS toolkit version and HSF file version;
|HOOPS 3DF Version||HOOPS HPS Version||HSF Version|
|23xx||2018 and following||20.65|
|2400||2018 SP2, 2019||20.70|
|2410 and following||2019 SP1 and following||20.80|
|26xx||2020 SP1 and following, 2021||20.85|