stig_olsen Posted April 8, 2014 Share Posted April 8, 2014 Hi, Im trying to build a pop geometry emitter, and I want the fire to climb around my painted geometry as in a lot of examples out there. When I set up the recommendations in my VOP SOP, nothing move at all. Im not sure if I have set it up correctly or if its simply a Houdini bug. I have tried to reset the simulation in the sop solver but with no luck. Please take a look at it. Stig fire_base.hipnc Quote Link to comment Share on other sites More sharing options...
stig_olsen Posted April 8, 2014 Author Share Posted April 8, 2014 ... and the Prev_Frame sop say "old geometry fetched since simulation is disabled". I dont know what that mean and if that has something to do with the vop sop not beeing active. Stig Quote Link to comment Share on other sites More sharing options...
rafaelfs Posted April 8, 2014 Share Posted April 8, 2014 ... and the Prev_Frame sop say "old geometry fetched since simulation is disabled". I dont know what that mean and if that has something to do with the vop sop not beeing active. Stig I'm not sure what that means, but even before that, you forgot to point your point cloud texture to the proper geometry. When I opened the file it was pointing to default.bgeo, which probably won't help you at all. Instead you can either do an op:/obj/box/solver1/d/s/Prev_Frame or the equivalent with an hscript expression: op:`opinputpath(".", 0)` Nevertheless, what will happen is that your heat values will get averaged over time... Cheers Quote Link to comment Share on other sites More sharing options...
stig_olsen Posted April 8, 2014 Author Share Posted April 8, 2014 Hi, That expression "op:`opinputpath(".", 0)`" is written in the evaluation node path, isnt that correct? It then points to the prev_frame. Stig Quote Link to comment Share on other sites More sharing options...
stig_olsen Posted April 8, 2014 Author Share Posted April 8, 2014 You were right, it was written in the wrong place. I have now corrected it, but it still doesnt work? Nothing is moving as I can see. Any idea? Stig fire_base2.hipnc Quote Link to comment Share on other sites More sharing options...
stig_olsen Posted April 8, 2014 Author Share Posted April 8, 2014 I suspect it has something with the prev_frame "dop import" to do, as it says that something is wrong. And, it is a dop import node? Why is that? I dont have any dop network set up in this project? Stig Quote Link to comment Share on other sites More sharing options...
rafaelfs Posted April 8, 2014 Share Posted April 8, 2014 (edited) You were right, it was written in the wrong place. I have now corrected it, but it still doesnt work? Nothing is moving as I can see. Any idea? Stig It wasn't working now cause you put the expression between quotes and that turns the expression into a string of characters with no effect... Remove the quotes (but leave the back ticks) and you shall see heat changing. The solver SOP is a SOP Solver disguised... I think the rationale is that people need sop solver features but are naturally afraid of DOPs. So, in short, you do have a DOPs network in your scene. Cheers Edited April 8, 2014 by rafaelfs Quote Link to comment Share on other sites More sharing options...
stig_olsen Posted April 9, 2014 Author Share Posted April 9, 2014 Hi, I did remobe the quotes but it still not working. Did you try it? If its working for you, it might be a bug here. Stig Quote Link to comment Share on other sites More sharing options...
Hello world Posted April 9, 2014 Share Posted April 9, 2014 Hi, I did remobe the quotes but it still not working. Did you try it? If its working for you, it might be a bug here. Stig just remove the double quotes in the pc texture in vopsop1.it works fine Quote Link to comment Share on other sites More sharing options...
stig_olsen Posted April 9, 2014 Author Share Posted April 9, 2014 Hi, and thank you. It didnt work, but now I updated from build 130.314, imported the project, removed the quotes and it worked. Stig Quote Link to comment Share on other sites More sharing options...
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