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@CCILko try.... here you have Files . and original Video https://cgworld.jp/regular/hcb/ https://vimeo.com/132679428 https://www.youtube.com/watch?v=Z31d7V3RJ_c

Hi, I already know it's possible, but I don't know how to do it yet. Could anyone tell me a help me how to recreate these effects in Houdini with Particles? This work is from artist Michael Rigley he do that with X-Particles in C4D. I have little experience with C4D but I would like to focus on Houdini as much as possible. I don't quite know where to start so I don't have any file to give you. Thanks Thank you to anyone who would like to help me. There is link for Michael Rigley work

Hi There, I am currently trying to learn more about foreach and vex functions . I am trying to do a simple thing like set a red color to the points in my array. I am using a foreach for this in vex. It is not working and I am not sure why ? Thank you foreach_setpointattrib_question.hipnc

Any ideas?

Thanks for this. Really helped me out!

No, usually we are using expressions in parameters of nodes. Parameters such as file path, group, attributes name etc. are string parameters and in these parameters when result of an expression should be text you must use backticks with that expression. For example in "Group" parameter to get last point number of the incoming geo use `npoints(0)-1`. If you want to create copies of the geo as much as incoming geo contains points with copy and transform sop use npoints(0) without backticks in "Total Number" parameter of the node because this is numeric parameter.

The team I work with has an opening. Feel free to ask questions and I'll do my best to answer. https://www.lockheedmartinjobs.com/job/grand-prairie/vfx-generalist/694/63473512848 Some of the projects we've done in the last few years are linked below. Most of the work isn't public but it's challenging and rewarding work.

hi, the alembic rop out node has a checkbox to "Create Shape Nodes" (so it's either on or off). I have a situation where for some packed primitives I want to write both "transform" and "shape", and other packed primitives I want to write only "transform"? Is this possible?

Change simulation settings

Backticks are only needed when working with a string expression? OK got it thanks! I removed the backticks and now it seems to work ok. i@start_frame = chi("start_frame"); i@end_frame = chi("end_frame"); Then using this on the Carve SOP: fit($FF,detail(0,"start_frame",0),detail(0,"end_frame",0),0,1) Here's the updated .hip file if anyone needs it. carve_read_detail_attribute_v3.hiplc

@vicvvshThank you, that makes sense. I didnt know about the "piece Attribute" parameter on the promote sop.

@vicvvsh @konstantin magnus Thank you both, I am studying all of your solutions

thanks , got it now thanks to you !

I did not change anything in your scene, just clear transformations on the rig pose sop and bake again. It works.

why is the tramsform matrix looking different on frame f. ex. 10 . looks like translating the matrix to a parameter isnt working for some reason. untitled.hip

the rig pose does not bake the rotation of packet geo

What problem do you have? Did you uncheck "Bake From Rest Pose" in the Bake dialog window?

can you upload an example scene pls . thank you

Hi guys, In Solaris context, I would like to use my (animated) camera to project a map on a geometry, but I can't find the right solution. I know the workflow in the object context (UV Texture SOP->Perspective From Camera), but I need the same thing in the Solaris. There is a LOP node I found here: https://www.sidefx.com/docs/houdini/nodes/lop/coordsys.html which I think is for this purpose, but I can't figure out how to use it. I would appreciate any ideas and thank you for helping.

@hannes603

untitled.hip hope anybody have an idea , how to do that.

Any ideas?

Hi, just clear backticks in expression. Use them with expression when parameter has a string type.

Hello! I'm trying to animate the Carve SOP's 'Second U' channel by using the expression: fit($FF,1,25,0,1) This works fine to animate from frame 1 to 25, but as soon as I try to read previously set detail attributes as part of the expression, I get an error. So I've made sure to first create the detail attributes, then This is what I'm trying to use: fit($FF,`detail(0,"start_frame",0)`,`detail(0,"end_frame",0)`,0,1) What am I not understanding about accessing detail attributes in an expression? File attached. carve_read_detail_attribute.hiplc

Hi, here a couple more variants detect_attrib_and_isolate_01.hipnc