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Showing results for tags 'vexpression'.
Found 4 results
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VM_Promo.mp4 VEX Manager 1.0 Snippet manager and code editing tool for H20.5+ The VEX Manager is a user-friendly tool for managing and editing VEX code as well as saving notes all within Houdini. It simplifies loading, creating, editing, and organizing VEX expressions, making it essential for artists working with VEX scripts. Download it here https://shirmanor.gumroad.com/l/vex_manager_v1
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Hello I'm trying to turn a pop wind object on/off. I first tried to just keyframe it, but then I get smooth values between 0 and 1 and all i want is on and off. I then noticed there is a handy 'use VEXpressions' box in there. but I do not know how to access 'Activation'. The editor does not like Activate, Active, Activation, with or without an @ Symbol. The SideFX help pages seem to indicate this is possible, but without showing how to do it. https://www.sidefx.com/docs/houdini/nodes/dop/popwind.html#parameters This is what I tired: if(@Frame == 1 || 20) { @Activate = 1; } if(@Frame == 10 || 30) { @Activate = 0; } -
I set up a scene with crates that I want to get destroyed by a flip sim. figured out that I had to put a attribwrangle with i@bullet_sleeping = 1; so that RBD stays in place until the FLIP collides. The problem is now that with a little hit of flip to a group of crate the push activates all of them to break. I am a noob, but found that there is a threshold to control the amount of impact to activate the RBD. I just dont know which one of these it is and how to apply it to wrangler. bullet_angular_sleep_threshold bullet_ignore bullet_linear_sleep_threshold Documentation found here : https://www.sidefx.com/docs/houdini17.5/nodes/dop/rbdpackedobject.html Here is the original failed vid: https://www.dropbox.com/s/dl8ze5rv4vf6gse/Test.mp4?dl=0 Here is current failed test vid: https://www.dropbox.com/s/sa4sumxfqpqmdhq/Flud Test2.mp4?dl=0
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Hi everyone, I have a big issue about exporting data from vexpression context. I used vexpression to set the velblend parameter in the "popadvectbyvolume" node. So I can advect particles differently along time. But I'm not sure what result number I have, so I want to export this value to check it out in the geometrie spreadsheet. I found this line in Houdini Help: export float @mytest = 0; So here is my code: #use a parameter to set the velblend velblend = @activate; #use a count to set the velblend differently when I want to if(@count >= 3) { velblend = 1/((@count/3)*5); } #want to export the final result to debug export float @velblend; My popnetwork works fine (my particles get different vel along time) and I don't have any error. But when I check the velblend attribut in spreadsheet, it stay to 0.0 So I tried different syntax like: export float @debug = velblend; export float @debug = @velblend; export float @parm_velblend; But each time I had an error : "velblend" is not a valid default for this prototype... I'm getting crazy right now!! If someone could have an idea, it could be great! Thx a lot. Cheers
