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angadrana

Slow motion pyro

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Hey guys,

 

I'm trying to create a slow motion explosion but can't get it right using the Timescale, timesteps or increasing the FPS. All of these completely change the look and shape of my explosion.

How do I make an explosion 10 times slow motion than it's actual speed without changing its look or shape completely?

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Either use the upres solver to do it (will require an additional sim) or maybe use the volume retime in the qlib tools. I haven't used the qlib one myself but, I thought I remember seeing a volume retime sop in it. 

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Check out the volume_retime_ql_SOP.hip file at this link.

https://github.com/qLab/qLib/tree/dev/examples

One thing you will have to have in your sim is a vel field for this technique to work. When you are caching your sim to disk make sure to include it.

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Hey guys,

I'm interested in trying out that qLib volume retime,

I'm a bit lost on how to use it out of the exemple .hip file.

I tried copying the node into another hip, but I get this :

Warning

This node is using an incomplete asset definition. It will not
function properly until the asset library containing the full
definition is installed.

 

-EDIT-

I found out :

you will need to install qLib tools:

https://github.com/qLab/qLib

Edited by 6ril
found out

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NAh ... can't get it to work :(

I'm under windows

I've downloaded and unpack the qlib in my houdini17.5 folder

and I've created a folder packages at the same place, with the .json file into it.

I've tried the same in houdini17.5/config

I also tried to modify my .env file with what I could understand from the provided .env file

 

nothing works.

 

Can someone assist me ?

 

Thanks,

 

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if you are in 17.5 why don't you use the retime node that comes with Houdini?  

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Arf !@   will do !

 

thanks for the heads up Sepu.

I'm rushin in a project, without knowing Houdini's capabilities.

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