vicvvsh
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How create a constraint network for simulating Car Suspensions?
vicvvsh replied to mois23's topic in Effects
Hello Mattia, use combination of constraints. Pay attention to constraint attributes condir and condof. In attachment simple example. I hope it helps you. Cartest_01.hipnc -
Hi Mike, if rebuild constraints from broken group they connect the same pieces again and this behavior is currently in your simulation. I clearly don't understand what you want to achieve therefore I made two wrangle in sop solver DOP. Take a look, maybe it is what are you looking for. switch_to_glue_from_broken_01.hipnc
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Hi Alex, I haven't even known about this search engine. Thanks for it. Definitely to bookmarks.
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I think you need to look up this topic https://forums.odforce.net/topic/20691-realistic-dynamic-fracturing-with-bullet/
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Primitive extrusion group from voronoi fracture
vicvvsh replied to BlackPariah's topic in General Houdini Questions
Hi Jack, take a look at hip in attachment. Is this what you want to achieve? voronoi_extude.hipnc -
Yes, may mistake. I have overlooked that in parameter "FrameNumber" there is an expression that refer to frameshift. In my case I just typed number manually when I examined your scene. I'm sorry if I misled you.
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Hi Mike, Change chi("FrameNumber") to chi("Frame_Number") or chi("frame_number") or chi("framenumber"). I presume that Houdini don't like when capital letter is in the middle of an attribute's name. P.S. Don't forget press button "Create spare parameter" when change the name of attribute
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Group rbd pieces with different name
vicvvsh replied to nikola014's topic in General Houdini Questions
Hi Nikola! See attached archive. I hope it will help you group_pieces.rar -
How to constrain packed prims using hard constraints in space?
vicvvsh replied to magneto's topic in General Houdini Questions
It is hard to say what is wrong without the hip. I made a quick scene and if i understand you right maybe this will help you. hard_constraints.hipnc- 1 reply
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Impressive work Konstantin! This is my approach: volleyball.hipnc
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If i understood you right then... sort_id.hipnc
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You need to activate parameter Collision Separation in a flip object and set a value not bigger then the value in Particle Separation. And Noobini's advice valuable too. Your case is simple and simplify collision shape will be work. But if collision shape will be more complicated then Collision Separation only will help. To see and control collision shape which flip solver uses go to Guides -> Visualization and turn on Collision
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Rotate cameras from vector list to degrees
vicvvsh replied to konstantin magnus's topic in Scripting
Try this: def vtd(vector): vec = hou.Vector3(vector).normalized() initDir = hou.Vector3(0,0,-1) initUp = hou.Vector3(0,1,0) m4 = initDir.matrixToRotateTo(vec) dir = initDir * m4 up = initUp * m4 newUp = dir.cross(initUp.cross(dir)) mrx = m4 * up.matrixToRotateTo(newUp) m3 = mrx.extractRotationMatrix3() rotDeg = m3.extractRotates() return rotDeg -
Sweep individual section length for each curve.
vicvvsh replied to kiryha's topic in General Houdini Questions
Expression was not right. There is some problem in geometry with one of the line before foreach loop and polyexpand2d has error. Hip file in attach so far. And i presume you need to connect lines as in network box in the scene but i not understand actually what you try to achieve with polyexpand2d. ROADS_004_01.hipnc -
Sweep individual section length for each curve.
vicvvsh replied to kiryha's topic in General Houdini Questions
Yes, now i use point attr, but then i promote this attribute back to prim attr. How to decide which attr use? It depend which attribute use node. Some node use point attr some prim attr and some detail attr. Need to look to help card for node