Hello!

Im a totally beginner with Houdini so a downloaded Apprentice.
After the first steps i encountered with a little problem that i cant solve.
I created a Grid and apllied a particle system(Source Particles from Geo) to the selected polygons/primitives in SOP level.
My problem is that my Popnet values are all blank. If i manually change a value like Start time or random seed i cant see the proper value its just giving back the “- - - ” value.
If i try to change the values with the sliders i get the same result. Particle behavios are changing if i change values, but i cant read the real values because i geting back only “- - - ” int the value boxes.

I get this problem with the houdini-13.0.260-win64-vc9 version, so i downloaded an older version, but same problem with houdini-12.5.615-win64-vc9

Can somebody help me to solve this problem?

Thanks.

I think this is because you're changing values during playback? In the very bottom-right corner of Houdini (next to where it says Auto Update, there is an “interactive” button. Turn this on.

Problem solved . Thanks a lot

I swithced the update methods but didn't recognized that button.
Thanks again.

other question: is this possible somehow to install 2 different Apprentice builds on the same time? I want to learn particles from the old tutorials from the tutorial database. H13 particle solvers are a bit complex to me at the start and its hard to find free tutorials for H13 particles, so i want to make the tutorials in H12 or below and compare the results and try to recreate stuffs in H13.

Yes, you can have many builds on the computer.

i have 2 installed
houdini-12.5.615-win64-vc9 & houdini-13.0.260-win64-vc9

but they cant run in the same time, because the old license servers. If i try to launch both, H13 wont launch and asks for licens server upgrade . i want to run h13 & 12 at the same time and try step by step follow the tutorials. I know , i know its stupid but i want to see (or experience?) the new and old particle system in the same time.

Nice! Its a good idea to learn to have both version installed.

It sounds strange the license server issue - I've currently H12.5 and H13 open and running on this computer, both are commercial licenses, but I thought that didn't matter.