Hello
I have a geometry with changing topology.
I use non-changing geo's UV to make a UV for it, so It has a changing UV now.
I want to procedurally create an ink-like spreading texture in Cops with respect to changing UVs.
I brought in geometry UV with the lab's attribute import, but the UV isn't correct.
Actually, I don't know If I can use an edge-detecting noise with changing UV.
I hope that makes sense.
Thank you very much.
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Technical Discussion » Procedural ink spreading in Cops
- MirHadi
- 143 posts
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Technical Discussion » Vray frame buffer poping up!
- MirHadi
- 143 posts
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Awww thank you, it never crossed my mind to use Deadline on a single machine.
I'll do that to see what happens.
batch render, I don't know how to do it in Houdini!
I'll do that to see what happens.
batch render, I don't know how to do it in Houdini!
Technical Discussion » Vray frame buffer poping up!
- MirHadi
- 143 posts
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Technical Discussion » delete point within a threshhold
- MirHadi
- 143 posts
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Technical Discussion » delete point within a threshhold
- MirHadi
- 143 posts
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well, I did that too but ...
here is the file please take a look.
here is the file please take a look.
Edited by MirHadi - Dec. 23, 2022 06:56:26
Technical Discussion » delete point within a threshhold
- MirHadi
- 143 posts
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yes, That was a typo I believe.
but still, I have the same problem.
the pairs are deleted not one of them!
but still, I have the same problem.
the pairs are deleted not one of them!
Technical Discussion » delete point within a threshhold
- MirHadi
- 143 posts
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Hello
I know this might sound strange but I have a problem with deleting points.
I have a straightforward code to delete a bunch of points based on the distance.
like if point number 5 finds 12, and 12 finds 5, both end up in the same group and then deleted.
I want only one of these pairs to be deleted,5 or 12 not both of them!
Oh God, I feel stupid.
Thank you
i@npts = nearpoints(0, @P, ch('dist'), 2);
foreach(int pnt;int p; @npts){
if (@ptnum != p && @group_deleEndPnts == 0){
v@pos = point(0, 'P', p);
f@lenX = length(@P.x -@pos.x);
f@lenZ = length(@P.z -@pos.z);
if (@lenX < ch('delX') && @lenZ < ch('delZ'))
setpointgroup(0, 'deleEndPnts', p, 1, 'set');
}
}
I know this might sound strange but I have a problem with deleting points.
I have a straightforward code to delete a bunch of points based on the distance.
like if point number 5 finds 12, and 12 finds 5, both end up in the same group and then deleted.
I want only one of these pairs to be deleted,5 or 12 not both of them!
Oh God, I feel stupid.
Thank you
i@npts = nearpoints(0, @P, ch('dist'), 2);
foreach(int pnt;int p; @npts){
if (@ptnum != p && @group_deleEndPnts == 0){
v@pos = point(0, 'P', p);
f@lenX = length(@P.x -@pos.x);
f@lenZ = length(@P.z -@pos.z);
if (@lenX < ch('delX') && @lenZ < ch('delZ'))
setpointgroup(0, 'deleEndPnts', p, 1, 'set');
}
}
Technical Discussion » Vellum Dop, Spawn a few cloth to some points
- MirHadi
- 143 posts
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Hello
I have dop simulation.
for the time being, I want to spawn new cloth to a few existing points in dops (I know their positions and I need to spawn on those specific point positions) as a new vellum source.
I bring those simulated points back to the sop level, then using "copy to point" and creating vellum cloth from those objects and feeding those to the dop network doesn't work for me.
please help me if you know the way. 🙏
I have dop simulation.
for the time being, I want to spawn new cloth to a few existing points in dops (I know their positions and I need to spawn on those specific point positions) as a new vellum source.
I bring those simulated points back to the sop level, then using "copy to point" and creating vellum cloth from those objects and feeding those to the dop network doesn't work for me.
please help me if you know the way. 🙏
Technical Discussion » Vellum dop constraint, access to dop object
- MirHadi
- 143 posts
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Hello
In fact, this is what I'm after:
- Is there a way to constrain vellum grains to a vellum cloth in Dops?
- how can I access dop geometry (other than sopsolver) to make a dynamic constraint?
I would be grateful to get an answer 🙏🏼
In fact, this is what I'm after:
- Is there a way to constrain vellum grains to a vellum cloth in Dops?
- how can I access dop geometry (other than sopsolver) to make a dynamic constraint?
I would be grateful to get an answer 🙏🏼
Technical Discussion » Vellum dop constraint, access to dop object
- MirHadi
- 143 posts
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Hello
I have a vellum cloth inside a dop network and a few points as vellum grains.
I want to attach those points to the vellum object and I use vellum constraint(Attach to Geometry) but I need to fetch the dop object to attach points.
I don't know how to get dop geo inside the Dop network.
thank you very much
I have a vellum cloth inside a dop network and a few points as vellum grains.
I want to attach those points to the vellum object and I use vellum constraint(Attach to Geometry) but I need to fetch the dop object to attach points.
I don't know how to get dop geo inside the Dop network.
thank you very much
Technical Discussion » vellum, dop constraint property, animate Rest Lengh Scale
- MirHadi
- 143 posts
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Hi
can I put the question this way:
It seems like the Vellum Constraints "pressure" doesn't allow animating groups or attributes on points/primitives within one single object. right?
I mean The balloon inflates as a whole ( or the selected group of points/primitives )not being able to animate/spread inflation through the volume.
I hope It makes sense.
any help appreciated!
Thank you
can I put the question this way:
It seems like the Vellum Constraints "pressure" doesn't allow animating groups or attributes on points/primitives within one single object. right?
I mean The balloon inflates as a whole ( or the selected group of points/primitives )not being able to animate/spread inflation through the volume.
I hope It makes sense.
any help appreciated!
Thank you
Technical Discussion » vellum, dop constraint property, animate Rest Lengh Scale
- MirHadi
- 143 posts
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Hello
I'm trying to animate the Rest Length Scale of a DOP vellum constraint property based on prim or point attributes.
but the constraint geometry is only one prim group and doesn't allow me to import attributes per prim through VEX.
What can I do to inflate a fallen balloon gradually from one point and grow the inflation through all the surface?
thank you in advance!
I'm trying to animate the Rest Length Scale of a DOP vellum constraint property based on prim or point attributes.
but the constraint geometry is only one prim group and doesn't allow me to import attributes per prim through VEX.
What can I do to inflate a fallen balloon gradually from one point and grow the inflation through all the surface?
thank you in advance!
Edited by MirHadi - April 22, 2022 22:02:52
Technical Discussion » Network service crashed forerever
- MirHadi
- 143 posts
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Same problem here in Houdini 19.0.561!
It is fine at first, Help panel comes out and works as expected but when Vray is installed, this error occrues.
It is fine at first, Help panel comes out and works as expected but when Vray is installed, this error occrues.
Technical Discussion » Vray frame buffer poping up!
- MirHadi
- 143 posts
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Hello
I wonder if there is a way to make a VRay render silent so each frame Vray frame buffer does not pop up.
It is annoying because It is on the way whenever a new frame renders, VFB pops up.
in general, It would be good to know If I can render it vis the command line to skip this feature.
thank you in advance
I wonder if there is a way to make a VRay render silent so each frame Vray frame buffer does not pop up.
It is annoying because It is on the way whenever a new frame renders, VFB pops up.
in general, It would be good to know If I can render it vis the command line to skip this feature.
thank you in advance
Solaris and Karma » How do I render with ACEScg color space in Solaris?
- MirHadi
- 143 posts
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danwnewlands
Linear is ACES-Cg only if the scene-linear role is set to that, which it is in the ACES-1.0.3 profile.
How should the scene set to be linear?
an OCIO environment variable is enough? nothing should be done in Karma renderer to use OCIO?
Edit:
according to doc:
Set the $OCIO environment variable to the file path of an OpenColorIO configuration file (such as config.ocio).
The existence of this environment variable controls whether Houdini automatically uses OCIO in various places.
well setting the variable should be engough I guess!
Edited by MirHadi - Dec. 25, 2021 08:16:13
Technical Discussion » Karma XPU, Matt Shadow catcher
- MirHadi
- 143 posts
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It should work as the doc says but unfortunally the shadow layer is empty with karma XPU!
It works with karma by the way. but I need XPU version for faster render.
PS: That's the principed shader inside Backgourd plate subnet that makes it uncompatible with XPU version.
It works with karma by the way. but I need XPU version for faster render.
PS: That's the principed shader inside Backgourd plate subnet that makes it uncompatible with XPU version.
Edited by MirHadi - Nov. 30, 2021 05:29:56
Technical Discussion » Karma XPU, Matt Shadow catcher
- MirHadi
- 143 posts
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Hello
I have a simple scene a sphere and a grid plane, just want to test how I can render out a ground plane as a shadow catcher (matt object, with shadows on it).
I can't find the way to do it in solaris and karma Xpu.
please let me know how I can do it.
thank you in advance
I have a simple scene a sphere and a grid plane, just want to test how I can render out a ground plane as a shadow catcher (matt object, with shadows on it).
I can't find the way to do it in solaris and karma Xpu.
please let me know how I can do it.
thank you in advance
Technical Discussion » Chain sop , orient to curve N problem
- MirHadi
- 143 posts
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hi
I'v used orient along curve node but I didn't think about using primuv, and this did the trick!
thank you
I'v used orient along curve node but I didn't think about using primuv, and this did the trick!
thank you
Technical Discussion » Chain sop , orient to curve N problem
- MirHadi
- 143 posts
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Hello
There is a wooden plank to be twisted and chain on a simple curve.
I used chain sop.
everything is fine but I want "Deform Along curve" respect the "curve Up control = curve Normal" but It doesn't and is projected on the plane.
I assume the top of box ( the red primitives) would be aligned to the curve normal.
please look at file.
thank you
There is a wooden plank to be twisted and chain on a simple curve.
I used chain sop.
everything is fine but I want "Deform Along curve" respect the "curve Up control = curve Normal" but It doesn't and is projected on the plane.
I assume the top of box ( the red primitives) would be aligned to the curve normal.
please look at file.
thank you
3rd Party » Wormhole Content Browser for Houdini
- MirHadi
- 143 posts
- Offline
today I decided to load it again And It worked!!
maybe something went wrong the other day and needed to be restarted.
so working fine now!
thank you again.
maybe something went wrong the other day and needed to be restarted.
so working fine now!
thank you again.
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