Hi everyone, first post here!
I've recently started to learn Houdini to get into motion design/simulation content, and I'm finding myself right at home with Houdini, coming from 10 years using Grasshopper 3D for the jewelry industry.
I'm confortable enought now to make my own content and not need to be hand held by tutorials all the time, so here's my question:
In Houdini 20.5, is it currently possible with Karma(Solaris or not) to make a realistic (real or fake) light/laser beam simulation like this examples?

https://www.reddit.com/r/Houdini/comments/18emgta/prism_dispersion_experiment_is_fake/ [www.reddit.com]



https://www.reddit.com/r/Houdini/comments/1e951xw/laser_light_beam_bouncing_paths/ [www.reddit.com]



https://www.youtube.com/shorts/sSWNu84IuVo [www.youtube.com]



Could it be done with only VOPs for now? Or simple VEX (I'm not as familiar with VEX for now). What I'm looking for is a controlable "emitter" of a light beam that I could point to translucent objects like diamonds and glass, and get the light to bounce and disperse light in the second example with the mirrors like in the 3th example.

The part that I'm finding hard to grasp is how to meke the beam itself, is it a geometry light? An POP emitter with collisions?

I have the idea of what I want to achieve, I just don't know how to begin executing it in Houdini. I'm not looking for a someone to just "make it for me", I would really like to learn where to start, and what I need to look for in Houdini to get a the look of a light that bahaves like in those physics videos.

Thanks!

Here is another (quite old) file

Thank you very much to both of you, it seems the task may be not so simple as I imagined :o
I managed to understand the general idea of both files and how they work, both are well documented, I get what the code does, even if I can't quite freely adapt it to make whatever I'm loking for.
To my surprise I had a hard time rendering both files, could not get a simple image ou of any of them.
I'm starting my learning path in Houdini with everything revolving around the stage context, so rendering right from the obj context is still a strugle for me.
Anyways, thank you vey much for the help.