Hi, i have some question about Spring SOP
i using spring SOP to make the hair drop down and collision with the model.
but there is a probelm, the spring will pull the hair to become longer, for example my hair is 10cm, but after spring SOP it may become 50cm. (show as the image bellow)
i want spring SOP moving the particle but without elastic, so the hair length didnt change, how can i do that ?
thanks
cheers
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Technical Discussion » how to make spring SOP moving hair particle without Elastic
- freesign
- 104 posts
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Technical Discussion » which parameter is to make the fur render more Oilly?
- freesign
- 104 posts
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hi, i use a fur OTL build in the houdini “Add Fur” option
and i want to render the Fur look like more oil-ly.
but i not sure what parameter i should looking for, i think should not be specular, right?
thanks for reply.
and i want to render the Fur look like more oil-ly.
but i not sure what parameter i should looking for, i think should not be specular, right?
thanks for reply.
Technical Discussion » how to merge 2 high polygon model with COOKIE Sop?
- freesign
- 104 posts
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Technical Discussion » how to merge 2 high polygon model with COOKIE Sop?
- freesign
- 104 posts
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hi, i having 2 high resolution model and i need to merge them, I use COOKIE Sop, and “User Define” and open “Keep Outside A” and “Keep Outside B”
but the things is , it always have some crack, do there is any solution to just keep Outside A and B with fully combine? (and fast as well)
thanks
but the things is , it always have some crack, do there is any solution to just keep Outside A and B with fully combine? (and fast as well)
thanks
Technical Discussion » CONNECTIVITY SOP question (autoselect)
- freesign
- 104 posts
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thanks for reply, from your reply i found out a way to do it.
conectivity SOP (create primitive attribute $CLASS) –> attribcreate SOP (create detail attribute $MAX_CLASS) –> attributepromote SOP (primitive $CLASS -> detail $MAX_CLASS with promotion method = “mode”) –> delete SOP ( delete with expression $CLASS != $MAX_CLASS)
then the model keep the lagest piece
thanks again
conectivity SOP (create primitive attribute $CLASS) –> attribcreate SOP (create detail attribute $MAX_CLASS) –> attributepromote SOP (primitive $CLASS -> detail $MAX_CLASS with promotion method = “mode”) –> delete SOP ( delete with expression $CLASS != $MAX_CLASS)
then the model keep the lagest piece
thanks again
Technical Discussion » CONNECTIVITY SOP question (autoselect)
- freesign
- 104 posts
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hi, i have a swiming point geometry, doing connectivity SOP with attribute "class", then i use a Partition SOP with "group_$CLASS", after this i get different $CLASS of group refer to connectivity, OK! now I want to delete the “group” that have biggest or smallest primitive, how can i do that without manually selected ?
Thanks
Thanks
Technical Discussion » How to delete surface inside a geometry
- freesign
- 104 posts
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my friend help me with this, and i got what i want , but still thanks for reply, actually i don't know what is the expression to write in partition SOP, if you know , pls tell me.
Technical Discussion » How to delete surface inside a geometry
- freesign
- 104 posts
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hi
i have some case need to just delete the inside surface and keep the outside surface, as the JPG bellow, and this object is a individual geometry without grouping inside or outside, but i don't know how to do it.
can anyone help me please?
thanks
i have some case need to just delete the inside surface and keep the outside surface, as the JPG bellow, and this object is a individual geometry without grouping inside or outside, but i don't know how to do it.
can anyone help me please?
thanks
Technical Discussion » How to Make a Skin on This Human Model
- freesign
- 104 posts
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Hi, I am waiting in the Odforce forums for 3 days but there some reply but no solution, so i would like to post again in here.
i have a Model As image attach bellow Below and I want to make a skin cover all object to create a human Skin, but i don't know what is the solution.
i try objectmerge(All object) –> isooffset
but isooffset doesn't create the exzactly fine object i need and is very very slow. is there other way to make it ?
if there is still without a perfect solution i will use scatter + copy <— Metaball then convertmeta SOP to create the outlook but that will become very very slow in my computer.
thanks
PS This model is build with Bone, organ, then Muscle, fat, then wanna make a skin on top of all GEO to create a Human Model )
PS: ray SOP is also not a perfect solution bcs it loss a lots of detail. if there is a ray SOP solution without lossing a detail pls let me know, i use SPHERE SOP + ORGINAL SOP –> RAY SOP (minimum Distance)
i have a Model As image attach bellow Below and I want to make a skin cover all object to create a human Skin, but i don't know what is the solution.
i try objectmerge(All object) –> isooffset
but isooffset doesn't create the exzactly fine object i need and is very very slow. is there other way to make it ?
if there is still without a perfect solution i will use scatter + copy <— Metaball then convertmeta SOP to create the outlook but that will become very very slow in my computer.
thanks
PS This model is build with Bone, organ, then Muscle, fat, then wanna make a skin on top of all GEO to create a Human Model )
PS: ray SOP is also not a perfect solution bcs it loss a lots of detail. if there is a ray SOP solution without lossing a detail pls let me know, i use SPHERE SOP + ORGINAL SOP –> RAY SOP (minimum Distance)
Technical Discussion » Muscle question
- freesign
- 104 posts
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Oh thanks very much, Rivet and Fetch Work Fine, Before that i try Fetch but i make a simple mistake it was i refer the FETCH to OBJ_B, and now i refer FETCH to OBJ_A, then connect FETCH –> OBJ_B –>NULL –> MUSCLE then everything work fine.
when there is some probelm (bcs OBJ_A using SoftXform in some part to reform the shape) sometims it doesn't show correctly and what i done is with RIVET to catch The Location then RIVET –> NULL –> MUSCLE
now everything is working very very fine
thanks alot!!
when there is some probelm (bcs OBJ_A using SoftXform in some part to reform the shape) sometims it doesn't show correctly and what i done is with RIVET to catch The Location then RIVET –> NULL –> MUSCLE
now everything is working very very fine
thanks alot!!
Technical Discussion » Muscle question
- freesign
- 104 posts
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hi, actually is OBJ A is in other SUBNET of GEO and OBJ_B is in another SUBNET so i have to use Object Merge.
i just figure out a solution that is in GEO_B Using “object merge” import the GEO_A, then use a NULL that path is refer to ../GEO_B. then connect the NULL to the Muscle, well everything work fine the only problem is when i rotate or transform the GEO_A, the Muscle will disapear, but then when i use a U key or I key to go to different path, then the Muscle will appear again.
this is not the perfect solution, bcs i need to use the muscle to deform some surface, so muscle disapear or appear without control will cause me some serious probelm. but atleast it work sometimes, i still waiting for the best solution.
PS: this is a very complex HIP files (now is more than 30MB and using more than 20,000 node already, so it work in a unnormal way bcs too much ch() is using)
i just figure out a solution that is in GEO_B Using “object merge” import the GEO_A, then use a NULL that path is refer to ../GEO_B. then connect the NULL to the Muscle, well everything work fine the only problem is when i rotate or transform the GEO_A, the Muscle will disapear, but then when i use a U key or I key to go to different path, then the Muscle will appear again.
this is not the perfect solution, bcs i need to use the muscle to deform some surface, so muscle disapear or appear without control will cause me some serious probelm. but atleast it work sometimes, i still waiting for the best solution.
PS: this is a very complex HIP files (now is more than 30MB and using more than 20,000 node already, so it work in a unnormal way bcs too much ch() is using)
Technical Discussion » Muscle question
- freesign
- 104 posts
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yes, i have try to remove centroid() expression. The Probelm will only happen when I use ObjectMerge SOP with “into this object” or I use “into this specific object” with transform object write with “.”
in this 2 case, the Musle SOP will not work correctly, i guess what happen is the ObjectMerge SOP effect the GEO tx ty tz, bcs when i move my Another GEO, then muscle also moving.
For Example
GEO_A
GEO_B/ObjectMerge(GEO_A, “into this object” or “into this specific object”,“.”)
MUSCLE <—– GEO_B
<—– GEO_C
then the muscle that refer to GEO_B will go to 0,0,0.
tx ty tz of GEO_B is totally unuseful, but if i move tx,ty,tz of GEO_A, the Muscle will refer to GEO_A but not GEO_B.
now, actually i figure out another way to settle my probelm is
GEO_Bath Object = “GEO_A”
this is not the way i want exactly but it can work like what I want but not perfectly what I want. if there is no other solution then i will do with this way.
Hope to hear from you soon
thanks
in this 2 case, the Musle SOP will not work correctly, i guess what happen is the ObjectMerge SOP effect the GEO tx ty tz, bcs when i move my Another GEO, then muscle also moving.
For Example
GEO_A
GEO_B/ObjectMerge(GEO_A, “into this object” or “into this specific object”,“.”)
MUSCLE <—– GEO_B
<—– GEO_C
then the muscle that refer to GEO_B will go to 0,0,0.
tx ty tz of GEO_B is totally unuseful, but if i move tx,ty,tz of GEO_A, the Muscle will refer to GEO_A but not GEO_B.
now, actually i figure out another way to settle my probelm is
GEO_Bath Object = “GEO_A”
this is not the way i want exactly but it can work like what I want but not perfectly what I want. if there is no other solution then i will do with this way.
Hope to hear from you soon
thanks
Technical Discussion » Muscle question
- freesign
- 104 posts
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hi , i found out the reason, i work many times in centroid() and always work. normally.
and then i found out one thing is, the GEO who work, (every GEO inside have a ObjectMerge SOP) was the ObjectMerge SOP who set the Transfrom to “into specified Object”
and the object who doesn't work is the ObjectMerge who set the Transform as “Into This Object”
what can i do if i need to use “into this object” bcs i need the transformation of the object i wanna input to this GEO.
thanks
and then i found out one thing is, the GEO who work, (every GEO inside have a ObjectMerge SOP) was the ObjectMerge SOP who set the Transfrom to “into specified Object”
and the object who doesn't work is the ObjectMerge who set the Transform as “Into This Object”
what can i do if i need to use “into this object” bcs i need the transformation of the object i wanna input to this GEO.
thanks
Technical Discussion » Muscle question
- freesign
- 104 posts
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Hi
I have a question, i put 2 geometry to Muscle input, and both have expression in transform session, tx ty tz, the expression is:
centroid(“.”,0)
centroid(“.”,1)
centroid(“.”,2)
and something weird happen is, when i connect to the muscle, the input perform like tx ty tz is point to 0,0,0, why?
sometimes it happens in the first input and sometimes it happen in 2nd input or 3th input.
thanks
I have a question, i put 2 geometry to Muscle input, and both have expression in transform session, tx ty tz, the expression is:
centroid(“.”,0)
centroid(“.”,1)
centroid(“.”,2)
and something weird happen is, when i connect to the muscle, the input perform like tx ty tz is point to 0,0,0, why?
sometimes it happens in the first input and sometimes it happen in 2nd input or 3th input.
thanks
Houdini Indie and Apprentice » Houdini in Chinese
- freesign
- 104 posts
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hi , i am in china and actually i use Linux Debian, but actually before i switch to Debian i also install many time Houdini in chinese windows, and i am pretty sure my computer work fine that time.
i have install Houdini in dell computer, apple computer, acer computer with all chinese windows version but didnt come out the probelm you say, the only reason you have that i think is because you install a not complete windows version, and i know china have a lot of uncomplete windows version made by chinese people, so I just suggest you install a complete windows version in chinese.
cheers
i have install Houdini in dell computer, apple computer, acer computer with all chinese windows version but didnt come out the probelm you say, the only reason you have that i think is because you install a not complete windows version, and i know china have a lot of uncomplete windows version made by chinese people, so I just suggest you install a complete windows version in chinese.
cheers
Technical Discussion » How To make many points Normals point to 1 object?
- freesign
- 104 posts
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Technical Discussion » How To make many points Normals point to 1 object?
- freesign
- 104 posts
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hi
i would like to know how to let many points's normals point to 1 point or object , with Point SOP?
i not sure about the expression in POINT SOP > Add Normals
($TX2 - $TX)
($TY2 - $TY)
($TZ2 - $TZ)
this expression is only work for 1 point, means 1 points normals point to the object, but others points didnt
i would like to make multi point normals point to the point as the image attach bellow.
thanks
i would like to know how to let many points's normals point to 1 point or object , with Point SOP?
i not sure about the expression in POINT SOP > Add Normals
($TX2 - $TX)
($TY2 - $TY)
($TZ2 - $TZ)
this expression is only work for 1 point, means 1 points normals point to the object, but others points didnt
i would like to make multi point normals point to the point as the image attach bellow.
thanks
Technical Discussion » How to make the point amount fix in a number
- freesign
- 104 posts
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hi , thanks for reply
the original hip file was too complex to see where is the probelm
so i make a new and simple one refer to the problem i face. bellow is the attachment.
as you see , there is a muscle joining refer to 2 input primitive, and everyframe bcs of the primitive number is different, the muscle is also jumping to another position, i would like the muscle stay in the same position but also reflect by the object changing everyframe.
thanks
the original hip file was too complex to see where is the probelm
so i make a new and simple one refer to the problem i face. bellow is the attachment.
as you see , there is a muscle joining refer to 2 input primitive, and everyframe bcs of the primitive number is different, the muscle is also jumping to another position, i would like the muscle stay in the same position but also reflect by the object changing everyframe.
thanks
Technical Discussion » How to make the point amount fix in a number
- freesign
- 104 posts
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Hi
I have a object as Picture attach in bellow.
This Head Bone Point number will changing in every frame
sometimes 5001 sometimes 5100 sometimes 5500 sometimes 4500
I would like to know how to make this animate bone fix in a Point number like 5000, so that i can join the muscle node to the point I want. like image call “sendpix1.jpg”
if not, the muscle that refer to point number will jump to the place i don't want it to join for example as the image call “error.jpg” attach bellow
PS: polyreduce SOP & rest position SOP is not the solution
thanks
I have a object as Picture attach in bellow.
This Head Bone Point number will changing in every frame
sometimes 5001 sometimes 5100 sometimes 5500 sometimes 4500
I would like to know how to make this animate bone fix in a Point number like 5000, so that i can join the muscle node to the point I want. like image call “sendpix1.jpg”
if not, the muscle that refer to point number will jump to the place i don't want it to join for example as the image call “error.jpg” attach bellow
PS: polyreduce SOP & rest position SOP is not the solution
thanks
Technical Discussion » How to make a point's normals pointing to another point
- freesign
- 104 posts
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AAAAAAAAA thanks very much, i got the pointdistance() in help but i didnt see distance()
thanks
thanks
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