[Sidefx-houdini-list] Pop in Dop hittime?

François Duchesneau sidefx at trinix.ca
Sun Feb 2 18:42:59 EST 2014


I don't think you can attach a file with this mailing list.

Javier Meroño wrote:
> hi,
>
> I just implemented Nick´s explanation into an actual HIP file for anybody (specially Dominik) to check.
> It works nicely.
>
> it´s a bit delayed because files into this group have to go through moderation (understandably).
>
> regards,
>
> Javier Meroño.
>
>   
>> Date: Sun, 2 Feb 2014 08:43:19 +0100
>> From: nick at nicknimble.com
>> To: sidefx-houdini-list at sidefx.com
>> Subject: Re: [Sidefx-houdini-list] Pop in Dop hittime?
>>
>> Hi Dominik,
>>
>> Like Francois suggested, I would make a custom attribute that defaults 
>> to -1 which means it hasn't been set before. Then you can have a simple 
>> VOPPOP that does a check if the particle has hit/impact values set on 
>> this frame, if so you check if your custom attribute equals to -1 (it 
>> hasn't been set before), then write the hit/impact value you are 
>> interested in to your custom attribute. Because you have a check that 
>> verifies if the attribute equals -1, it can only been set once being the 
>> first impact.
>>
>> Good luck! :-)
>>
>> Cheers,
>> Nick, be Nimble
>> -- 2014 the year where things become clearer --
>> +31 622 4243 94 | www.nicknimble.com | www.facebook.com/nicknimble
>>
>> On 01/02/14 03:33, François Duchesneau wrote:
>>     
>>> Hi Dominik,
>>>
>>> I haven't used the new Pop in Dop but I guess you can create a custom 
>>> attribute and set its value to be the minimum between itself at the 
>>> previous step and the hittime. Maybe you'll have to tell the default 
>>> value is 9999 for the case hittime is not set yet.
>>>
>>> If you're looking for the clean way of doing it, I don't know though :)
>>>
>>> Francois
>>>
>>> Dominik Kirouac wrote:
>>>       
>>>> Hey all,
>>>>
>>>> I have a simple Pop in Dop Question.
>>>>
>>>> I'm trying to get the hittime attribute of the first hit, because the 
>>>> particles are sliding on the surface, the hitime update each frame.
>>>>
>>>> Thanks
>>>>
>>>> Doum
>>>>
>>>>
>>>>
>>>>
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