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EastCoastCreati
11-16-2013, 08:02 PM
Minor problem with particles sticking inside an object.

as you can see the particles are working correctly as they flow down inside the glass tank, but when it the particles reach the bottom the spill out it makes no sense as the object is one object not layered.

Why do the particles work correctly at the upper section and side except when near the bottom.

erikals
11-16-2013, 11:17 PM
because it is LightWave particles, not very accurate... :]
maybe Blender particles behave better...

stobbs
11-17-2013, 06:56 AM
Minor problem with particles sticking inside an object.

as you can see the particles are working correctly as they flow down inside the glass tank, but when it the particles reach the bottom the spill out it makes no sense as the object is one object not layered.

Why do the particles work correctly at the upper section and side except when near the bottom.

I had a quick play with particles and a cylinder(with thickness) and got similar strangeness but selecting object-advanced in collision properties of the cylinder fixed it.

Sensei
11-17-2013, 08:16 AM
Code is trying to find geometry for collisions.
One particle is finding inner poly, other particle after little movement is finding outer poly.
You have quite big polygons in one direction.
I would try to sub-divide them in Y axis, so snapping routine will find them easier..

Sensei
11-17-2013, 08:22 AM
Imagine we have sphere with radius 1 m, and object to snap at 0,0,0.. once it's inside it's snapping to sphere from inside to ~1,0,0 location on sphere. If we will then move object to f.e. 1.5,0,0 it'll snap from outside to sphere to ~1,0,0.

Too fast movement between frames, and object thinks it's outside of object, so it's snapped from outside.

jeric_synergy
11-17-2013, 11:09 AM
Isn't there a setting that SAMPLES the movement at finer increments, while not affecting the framerate? Explicitly for such situations.

If not, certainly such a setting would make sense, no?

BTW, these kind of errors are exactly what Chronosculpt can fix, right?

prometheus
11-18-2013, 12:08 PM
Isn't there a setting that SAMPLES the movement at finer increments, while not affecting the framerate? Explicitly for such situations.

If not, certainly such a setting would make sense, no?

BTW, these kind of errors are exactly what Chronosculpt can fix, right?

Not sure..I think chronosculpt doesnīt work with particles, not sure how particles exported through fbx would work?
modo has a particle engine which allows for sculpting particles in time...would have been so much more interesting too actually invest in
chronosculpt in itīs first release, if it also could have worked with particles...deform particles, erase particles etc...a downside for chronosculpt being seperate module perhaps..and perhaps considering creation of particles with a spray particle tool.

I think a denser mesh, better divided might work to sort out the issues, and as mentioned above..object advanced mode might be more accurate.

Michael

jeric_synergy
11-18-2013, 01:12 PM
Really? 'Cuz a particle is just another piece of geometry, or it can be.

Of course, the existing particle tools allow for altering individual particles' paths, which is OK if there there aren't too many of them. <10, that is. After that it's just a PITA.

prometheus
11-18-2013, 05:02 PM
Really? 'Cuz a particle is just another piece of geometry, or it can be.

Of course, the existing particle tools allow for altering individual particles' paths, which is OK if there there aren't too many of them. <10, that is. After that it's just a PITA.

well...I donīt think you can view it from a geometry point of view, Im no tech specialist, but I figure it is just calculated positions in space and time, with no geometry attached.

thus to render the need of it to have a render type such as volumetric rendertyps such as Hypervoxels or make it an partigon emitter which is a different attribute close to polygons.(1point poly) the closest thing would be to fx link geometry...but it wonīt be the same as editing particles themself.

The question is if anyone has made a succesful export and edititng of particles inside of chronosculpt or not? otherwise that is something for the future....when it arrives:)
I however donīt believe that is an option as of today..but I canīt be sure, nothing of what Ivé seen indicates that..and Im sure it would have been displayed on youtube lightwave page showcasing particle tips etc.

Michael

jeric_synergy
11-18-2013, 05:59 PM
Well, isn't one of the CS demos fine-tuning a Fracture-style bridge collapse? If you can adjust that, you can adjust some particles.

prometheus
11-18-2013, 06:12 PM
Well, isn't one of the CS demos fine-tuning a Fracture-style bridge collapse? If you can adjust that, you can adjust some particles.

no..donīt think so, not particles, fine fractured pieces looking like particles or simulated parts ..but thatīsnot the same.
Hanenīt seen anything from chronosculpt showcasing any particle editing..just very highl detailed fractured parts, as I mentioned..particles and geometry isnīt the same, and the fracture-style bridge collaps is all geometry.

Michael

prometheus
11-18-2013, 06:25 PM
something along this would be nice...
http://www.youtube.com/watch?v=ygOTujzNoso&list=PLGSeTbstWVaPP5HzikDHh0fywy49Qjdnn&index=4

tyrot
10-29-2014, 05:37 PM
lets face it... i guess we have the most primitive particle system....i look at modo - C4D and others they all have or at least they have a plugin to deliver high-end particle effects..

Particularly particle problem we all have ... at least somebody must release a decent plugin..before i buy C4D or Houdini ... i m depressed!

prometheus
10-29-2014, 07:35 PM
lets face it... i guess we have the most primitive particle system....i look at modo - C4D and others they all have or at least they have a plugin to deliver high-end particle effects..

Particularly particle problem we all have ... at least somebody must release a decent plugin..before i buy C4D or Houdini ... i m depressed!

We just have to wait and see what lw 12 brings, if they donīt have done some serious work on the particle system...then I will be depressed..take a coffe, do harder work..get more money, go and buy me houdini or cinema4d or modo.

Michael

erikals
10-30-2014, 01:26 AM
Houdini Indie would make much more sense than C4D...

Houdini Indie = $200
C4D Prime = $1000

however...(!) C4D Prime has a Basic particle system, but lacks >
Thinking Particles node-based particle system
Rigid Body dynamics for MoGraph objects
Rigid Body dynamics
Joints, Springs, Motors
Soft Body dynamics
Aerodynamics forces
Plastic & Breaking Springs
Breaking Connectors
Cloth dynamics & dressing functions
Hair dynamics
Spline dynamics

if you want any of those, you'll have to go with C4D Studio = $3700

modo particles, not sure, are they that great ?
compared to modo, wouldn't Blender be better ? https://www.youtube.com/watch?v=s3u9uD1DEKE


just bought Houdini Indie myself, here is the installation process >


https://www.youtube.com/watch?v=ag29xX6FFBk

prometheus
10-30-2014, 02:11 AM
a couple of things in cinema4d is viewed in a better perspective than houdini..my perspective that is.

Easier to work with ..worklflows
I am a little more comfortable with turbulenceFd..than pyrofx.
motion graphics upperhand cinema4d
sculpting tools, terrain creation..upperhand cinema4d
modeling ..probably upperhand cinema4d.

jeric_synergy
10-30-2014, 02:23 AM
C4D also has a yearly subscription that almost makes it affordable. True, you gotta re-up, but it may work for some people's finances.

(::sigh:: cue the "rent-trolls".)

erikals
10-30-2014, 02:27 AM
motion graphics - absolutely, but several customized Motion Graphics are no easier than in LW
sculpting tools - sculpting is nice, but limited
modeling - only for certain things

i'm by no means saying "don't get C4D" just saying, do dedicated research and see if it's worth it...


Motion Graphics in C4D for example is the best there is,
but based on what you are aiming for, it is important to buy the "right" program


there are nice things in Maya, Max, C4D, modo, Houdini, Blender, etc... but focusing on a selected few might be smarter.

after all, if you are a generalist, many here are, then not only do you have to focus on 3Dapps, but also, as an example >

-TurbulenceFD
-LWCad
-TAFA
-RealFlow
-InfiniMap
-3DCoat
-Octane w/plugin
-PhotoShop
-Rhiggit
-Syflex
-World Machine
-UVLayout
-Perception Neuron
-PhotoScan
-AHK
-Quixel
-CrazyBump / ShaderMap / MindTex
-After Effects
much more...

so again, choose carefully... learning too many apps can be tiring...