Hi Wout &c, We're looking at upgrading to a 6.0 version of CadLib next year. Ideally we'd go to the multi-platform versions but I remember you mentioned that the performance on .NET Standard wasn't as good as the Windows-specific versions? I'm just wondering if you can spell out the differences between the newer versions with respect to performance / implementation? Here's my guess / assumptions, is this correct? - CadLib 4, CadLib 5 (Windows), CadLib 6 (Windows) - I assume these use approx the same System.Drawing renderer? - CadLib .NET Standard, CadLib 6.0 (Multi-Platform) - I assume these use either the System.Drawing compatibility package or the ImageSharp renderer you mentioned a while back? Assuming the above is true, do you have any updated thoughts / metrics on the relative performance of the multi-platform renderer vs Windows-specific renderer? Cheers, Chris

Also, is it possible for us to somehow switch between 6.0 (Windows-specific) and 6.0 (Multi-platform) at build time depending on what output we're targeting? (maybe the license signing prevents this?) I'd assume we'd have to have licenses for both to do that...

Hi, Yes, the windows versions of CadLib use System.Drawing (GDI+). The multi-platform versions use the ImageSharp software rendering, and you can expect it to be a factor 5-10 slower is my guess. For build time switching you'd need to have some #if blocks, because the rendering classes are different. - Wout