Hi Guys, Hope someone can help with this.
When creating takes, and you select a take you see the parameters adjusted for that take in the takes window.
My question is.
In the imagemagick node, can you in the attribute overlay specify thesse parameters to be overlayed.
The take number, and the take parameters.
Any help much appreciated
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Technical Discussion » Is there a way
- craigs
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Technical Discussion » remeshing a garment with vellum issue
- craigs
- 13 posts
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I keep having the same issue after putting down a remesh node before piping my cloth into a vellum cloth constraint, and vellum solver.
There's definitely no collision with the cloth and mesh from the initial frame, it seems to get to about frame three and then looks like it's being yanked off the body.
On the solver I have substeps to 5, and constraint interactions 300.
It does correct itself a couple of frames later, but the dress just goes right the body, even after upping the collision iterations to 150.
I notice when turning off the remesh, I still get the yanking effect, but it seems to collide better with the body geo.
Im not sure if its the collision geo a fault, or the remesh doing something odd.
Does anyone have any idea?
There's definitely no collision with the cloth and mesh from the initial frame, it seems to get to about frame three and then looks like it's being yanked off the body.
On the solver I have substeps to 5, and constraint interactions 300.
It does correct itself a couple of frames later, but the dress just goes right the body, even after upping the collision iterations to 150.
I notice when turning off the remesh, I still get the yanking effect, but it seems to collide better with the body geo.
Im not sure if its the collision geo a fault, or the remesh doing something odd.
Does anyone have any idea?
Technical Discussion » vellum fighting damping ratio
- craigs
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I have a simple alembic object moving from right to left in a scene, and I have used pin to target for the top portion of the geometry to follow the animation and a vellum tetstretch after that. The pin to target seems to be causing me some problems.
If I have the damping set at default, it's spiking all over the place, there are no collisions on it.
Raising the damping ratio seems to stop the spiking, but then the object lags behind the current animation, I've tried increasing the sub-steps up to 30, and the constraint subteps to 1000 when setting the damping ratio back to default but that doesn't seem to solve the issue.
Can anybody shed some light on what might be the issue.
If I have the damping set at default, it's spiking all over the place, there are no collisions on it.
Raising the damping ratio seems to stop the spiking, but then the object lags behind the current animation, I've tried increasing the sub-steps up to 30, and the constraint subteps to 1000 when setting the damping ratio back to default but that doesn't seem to solve the issue.
Can anybody shed some light on what might be the issue.
Technical Discussion » length of curve into tetrahedral fiber
- craigs
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I already know about the measure sop. that's not so much the issue, I want to measure the length of a curve say its 0 to 1, then reverse that say with a fit range so it spits out a value 1 to 10, but the real difficulty is how to I drive a constraint property in vellum such as stiffness with this value.
Technical Discussion » length of curve into tetrahedral fiber
- craigs
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Is there a way to measure the length of a curve, and read that into the vellumsolver to drive the tetrahedral fiber constraint stiffness,I would want the curve as it shrinks in length to increase the stiffness of the fiber.
Any guru out there shed any light on how to achieve this?
Any guru out there shed any light on how to achieve this?
Technical Discussion » rendering hair error
- craigs
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Keep getting this error when i try render a groom, any idea?
Error
Unable to save geometry for: /obj/Groom_hairgen/RENDER
SOP Error: Invalid source /obj/Groom_hairgen/python2
Error: Python error: Traceback (most recent call last):
File "<stdin>", line 87, in <module>
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.499/houdini/python2.7libs\houpythonportion\Geometry.py", line 120, in addAttrib
create_local_variable)
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.499/houdini/python2.7libs\hou.py", line 36520, in addAttrib
return _hou.Geometry_addAttrib(self, *args)
OperationFailed: The attempted operation failed.
The default value must contain at least one element
.
Error
Unable to save geometry for: /obj/Groom_hairgen/RENDER
SOP Error: Invalid source /obj/Groom_hairgen/python2
Error: Python error: Traceback (most recent call last):
File "<stdin>", line 87, in <module>
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.499/houdini/python2.7libs\houpythonportion\Geometry.py", line 120, in addAttrib
create_local_variable)
File "C:/PROGRA~1/SIDEEF~1/HOUDIN~1.499/houdini/python2.7libs\hou.py", line 36520, in addAttrib
return _hou.Geometry_addAttrib(self, *args)
OperationFailed: The attempted operation failed.
The default value must contain at least one element
.
Technical Discussion » groom problem
- craigs
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Technical Discussion » groom problem
- craigs
- 13 posts
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Is there a reason my groom might one part of my groom might not be follwoing my mesh,
I applied the guides at -10 (frame), when I go to frame 1, its remains behind, not sure why this is.
I applied the guides at -10 (frame), when I go to frame 1, its remains behind, not sure why this is.
Technical Discussion » Animated Alembic to RBD
- craigs
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Technical Discussion » Animated Alembic to RBD
- craigs
- 13 posts
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I seem to be having a great of trouble trying to get an animated alembic cached geometry that Ive cached to frame 85, to switch to an RBD simulation.
Heres the setup.(iamges attached)
Ive tried putting a point wrangle before the OUT_TRUCK node,
tried
i@active = 0;
i@deforming = 1;
and RBD key active turning on at frame 86.
no joy
tried disabling the point wrangle(i@active=0,i@deforming=1)
then tried with the rbd key active, 0 on till frame 85, then active, then 1 on frame 86, still no joy.
The animated part does kick in between frames 1 and 85.
Ive tried setting the use obj path to 1, and pointing the OBJ path to the OUT_TRUCK, no joy.
even tried a sop solver, with a point wrangle, and set i@active 1;
then connecting a enable solver, to kick on at frame 86
.
Is there something Im missing. I also want to ensure the RBD picks up the velocity from the animated alembic.
Any advice much much appreciated.
Heres the setup.(iamges attached)
Ive tried putting a point wrangle before the OUT_TRUCK node,
tried
i@active = 0;
i@deforming = 1;
and RBD key active turning on at frame 86.
no joy
tried disabling the point wrangle(i@active=0,i@deforming=1)
then tried with the rbd key active, 0 on till frame 85, then active, then 1 on frame 86, still no joy.
The animated part does kick in between frames 1 and 85.
Ive tried setting the use obj path to 1, and pointing the OBJ path to the OUT_TRUCK, no joy.
even tried a sop solver, with a point wrangle, and set i@active 1;
then connecting a enable solver, to kick on at frame 86
Image Not Found
.
Is there something Im missing. I also want to ensure the RBD picks up the velocity from the animated alembic.
Any advice much much appreciated.
Technical Discussion » Groom/vdbfrompolygons
- craigs
- 13 posts
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Is there an advisable way to stop the vdbfrompolygons recalculating after every stroke painted, Im not sure if you can cache it, and still be able to paint attributes such as density or length, or whether it needs to recalculate the vdbfrompolygons every time, as it seems to slow the process down significantly.
Any advice appreciated.
Any advice appreciated.
Houdini Lounge » Houdini 16.5 windows, link is not working. download fails.
- craigs
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Technical Discussion » lava filling a cup
- craigs
- 13 posts
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Hi, Im trying to get the lava emit from object to fill a cup, but instead of the level of lava rising it just pertains to the same level, how can I get it to rise as it fills the cup, and is there also a way to set the intial state of the fluid.
Sorry for the newbie question, hope someone can help
Sorry for the newbie question, hope someone can help
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