Triangles per second

joshtargo

If my laptop can do 115M triangles per second on the Check page, does that mean it should not have any difference in performance spinning an Assembly that has up to 115M TPS? (Not considering Mate solving)

NeilCooke

Not sure if there is a correlation, but 115M is very low. Plus, the key value is lines per second, unless you always have edges turned off.

joshtargo

@NeilCooke, This started when students complained that the master assembly was slow, and I found that replacing the full detail knobby mecanum wheels drastically sped up the performance. The four wheels alone were 8M triangles (ish). We also notice that Rev Maxtube with full hole patterns also seemed to cause some slowness (though certainly more in the part studio when we are using the maxtube converter FS to make the many, many holes). So I'm trying to figure out what aspects of an assembly and computer cause performance issues (especially on underpowered high-school issued laptops).

Below is one of our bigger assemblies and my personal laptop specs. The model has more Lines than my laptop can render (or whatever) per second. but is there a direct performance correlation there? Does performance increase when edges in the assembly are on the back side of the model as we are viewing it, or does the GPU need to track/render all lines that are not hidden or suppressed?

Also, even relatively simple assemblies seem to have a lot of lag when grabbing items to drag along slider and revolute mates, such as the central elevator here (much "simpler" assembly, but still 93M edges). Is this slow performance something that can be improved by having a simpler assembly or some other way of organizing the data, or is it simply a function of my laptop's abilities? I believe it's slow even on higher powered desktops with decent GPUs.

We are trying to convert Inventor students to Onshape and the slowness is one of their bigger complaints.