http://area.autodesk.com/forum/ The Area en Copyright 2012 2012-02-10T08:21:35+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/parentid-becomes-unreliable-when-particles-start-to-die/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/parentid-becomes-unreliable-when-particles-start-to-die/page-last/#When:09:40:48Z I have a particle shape that is emitting a second particle shape as tails for the first. The tails are inheriting their color (incandescence) from the specific particle they're the tail for through the following command. The problem is, many seconds after the simulation begins, once the parent particle shape has particles start to die, the colors of the tails for brand new parent particles don't match their parent's color, and all tails have the same color (instead of the randomly selected colors the different parent particles have.) Here is the expression: float $parentParticle = tailParticleShape.parentId; $command = "getParticleAttr -at incandescencePP -a true parentParticleShape.pt["+$parentParticle+"]"; vector $parentColor = eval($command); tailParticleShape.incandescencePP = $parentColor; What is going on behind the scenes that causes this behavior? Any suggestions of how I can hack around this? 2012-02-06T09:40:48+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/how-to-make-realistic-trees-in-maya/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/how-to-make-realistic-trees-in-maya/page-last/#When:13:53:50Z Hello I have a really big fairy tale like tree that I sculpted in mudbox so I want to put leafs and some additional tiny branches on it. I know that I can make leaves as planes but I want to put leaves on branches and animate them.The tree is kind of enchanted live tree and it has to move a lot. How to animate branches and get a realistic leaf movement??? 2012-02-05T13:53:50+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/question-about-ncloth/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/question-about-ncloth/page-last/#When:23:15:13Z Maya official document provide some tips for using nCloth that titled with "nCloth tips and troubleshooting", in Tips page some words confuse me: Space scales * World space takes into account the size of objects. For example, large objects stretch more. * Local space handles scenes with differently sized objects well. I don't see any option or attribute in nClothshape node or nucleus node that can set something to Local or World，am i missing anything? And below Space scales issue is the performance issue, i got question about increasing "number of Substeps" or "number of iterations" can speed up the simulation. Since increasing these number would increasing calculation times, how could it be faster rather than "accurate bu slower" ?? Can anyone help explain these issue more clear? thanks a lot !! 2012-02-01T23:15:13+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/maya-particle---stick-to-object/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/maya-particle---stick-to-object/page-last/#When:21:02:08Z hi all! I create particle emit from object. and then My object Animated on a few frame .. problem how to stick the particle on my object's face? someone says use goal ..... I tried but i can't. any one help me please .. horzatbiz@gmail.com 2012-02-01T21:02:08+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/tearing-ground-effect/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/tearing-ground-effect/page-last/#When:16:21:35Z What would be the best solution to create a simulation for ground that is being ripped open. I have tried using a cloth method but not really get the desired effect. 2012-01-30T16:21:35+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/how-to-create-an-effect/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/how-to-create-an-effect/page-last/#When:15:52:12Z I was wondering does anyone have any advice about how to create the following effect? White cream is pored into back coffee. It swirls and gradually turns into a white company logo Thanks 2012-01-30T15:52:12+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/emitter-properties-vs-container-properties/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/emitter-properties-vs-container-properties/page-last/#When:05:19:02Z Hello, I have a simple question about Fluid Dynamics in Maya. Basically I have an emitter and a container, the emitter has settings such as Density/Voxel/Sec, Heat/Voxel/Sec, Fuel/Voxel/Sec and Turbulence. Those properties can be found in the fluid container as well. Density Scale, Velocity Scale, Temperature Scale and Turbulence Strength. I was wondering what's the difference between Density (and the other 3 properties) of the container and Density of the Emitter. According to the Maya Help File, Density/Voxel/Sec is the Density per voxel in each second. But Density of the fluid is how dens/thick the fluid is. (it sounds to me exactly the same..) I made a little test myself, by creating 2 identical Emitters/Containers and one had increased Density Scale and the other one had increase Density/Voxel/Sec. I'm guessing that 20 Density Scale is not the same as 20 Density/Voxel/Sec but even when I played around with the numbers I couldn't get both of them to look the same. So, what is the difference between changing the values in the emitter and changing the values in the fluid itself. Why change the values of the emitter when you have more control over the container? Thank you. 2012-01-27T05:19:02+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/gravity/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/gravity/page-last/#When:09:55:58Z I just started playing abround with bullet and found the following, which is the same for the gravity force in maya. Scene settings = centimeter and 24 frames per second acceleration pattern: 1 sec 24 frames = 4.52 units 2 sec 24 frames = 14.312 units 3 sec 24 frames = 24.112 units 4 sec 24 frames = 33.912 units 5 sec 24 frames = 42.711 units 6 sec 24 frames = 53.511 units 7 sec 24 frames = 63.311 units 8 sec 24 frames = 73.111 units 9 sec 24 frames = 82.911 units 10 sec 24 frames = 92.711 units 276 sec 24 frames = 355.672 units 277 sec 24 frames = 365.472 units Mass does not change the acceleration pattern. The acceleration does not reach a terminal velocity. Your RBD object will fall the same amount of units regardless of your units being set to centimeters or meters ( so if your units are set to centimeters it falls 4.5 cm the first 24 frames and if your units are set to meters then it falls 4.5 m the first 24 frames) Which meants you have to work either in meters with you gravity set to default -9.8 or your scene set to cenitimeters with your gravity set to -980 I also find the only way to make an object fall 9.8 units the first second is to turn the gravity to -21.3 or with your scene set to centimeters have gravity turned to -2130 to fall 9.8 meters the first second. Any explanation would be much appreciated. And does anyone know how to make gravity work as real world in maya and what scene scale etc. is best to work with? 2012-01-26T09:55:58+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/fluid-effects-ocean--floating-objects-can-they-collide-off-each-other-can-they-not-intersect-each-other/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/fluid-effects-ocean--floating-objects-can-they-collide-off-each-other-can-they-not-intersect-each-other/page-last/#When:23:58:29Z Hello Everybody, I am animating a scene using the Ocean Shader from the Fluid Effects I am interested in having a LARGE number of objects floating along with the motion of the water. I am using the 'make boat" and 'make float" to my objects on the object. it works, they float and rock). PROBLEM: When I do this, I can't have the "active rigid body" properties applied to my object so that they can collide and bounce off each other. So my floating objects intersect each other. How can I solve this? I am attaching an inspiration image of what I would like to achieve. It is a river of trash. Amy suggestion about a different way to approach it? thanks a lot. 2012-01-25T23:58:29+01:00 http://area.autodesk.com/forum/autodesk-maya/dynamics/maya-ncloth-to-max/page-last/ http://area.autodesk.com/forum/autodesk-maya/dynamics/maya-ncloth-to-max/page-last/#When:22:46:21Z Hello to all. I wish to find out how to export a Maya nCloth simulation to max in some way.If you know how or know a tutoral that shows the process please write an reply. The software frame is Maya2009-Max2008 2012-01-22T22:46:21+01:00