rochre

yes! very similar to this.

I want some particles to be attracted to a spehere as they move. When they contact the sphere I want them to slide along the surface. I've tried diving into the pop solver collison tab but I'm just not getting it. I also have tried the pop collision behavior node but still don't get it. Do I need RBD? I don't want to bounce. just stick and slide.

So I'm feeding the pop wrangle into a pop wind per the example file. The VEX appears to use an external volume to add to the pop wrangle, but I want to run some VEX that will add particles randomly to a group over time. So I guess I need to say at current time add random particle number to group.

Awesome. Thank you, Sir.

Bit of a newbie here so please pardon if this is obviouse. I want a series of particles on a surface that randomly detach and float upward as the surface distorts. I know how to scatter the particle on a surface, but having them randomly detach and be subject to forces is the stretch for me. Thanks.

First - You're awesome. Thanks for the help. I did use LASzip. I found an online LiDAR visualizer so I can see the data is there. In Houdini it is reading points. I've upload one of the las files and look through the link you posted. Thanks. ot_588000_5188000_rp.las

Thanks. I found a post with example files but they didn't with my data. My files are OK so not sure what's up.

I need to create a model of Mount Rainier so I've down loaded some LiDAR data from the USGS. It was .laz and I converted to .Las. I import the data with the LiDAR import node. However I don't see a point cloud for me to manipulate my height field with. I feel like I need to start trouble shooting by at least verifying the .las is importing properly. I'm not great at Houdini yet so I apologise is this is basic.

Learning Pyro and I have one sphere that is emitting fuel. As second sphere is emitting heat to ignite the fuel and then moving out of range, it's basically the igniter. Problem is that the fuel begins to burn and then the fire dies. I've tried increasing the fuel scale, reducing fuel inefficiency and other setting but no luck. I can't get the fuel to burn on its own. Any parameters I should be looking at? Thanks.