when i use “$LIFE%0.2==0.1” as rule to create Group,then put it into split pop to emitter particles. but the group doesn't work,why?
if i use above rule to create an popevent ,but any affect can't be seen still.
why?
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Technical Discussion » questions about GroupPOP and eventPoP
- flyingc
- 160 posts
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Technical Discussion » A problem about explosion
- flyingc
- 160 posts
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Technical Discussion » A problem about explosion
- flyingc
- 160 posts
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MiguelPerez
Hehe, that's my explosion I made it with max, and the volumetric renderer I used renders volumetric spheres, so I just made them spin.
The realistic way of doing what you want is to use fluid simulation. If not, you can try the turn pop or the orbit pop with some tricks.
hehe,I had known it is your work earlier
It is 3dsmax that your made it with ?
Technical Discussion » A problem about explosion
- flyingc
- 160 posts
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Technical Discussion » A problem about explosion
- flyingc
- 160 posts
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Hi
I am trying an explosion effect and want to append some rising and rolling to smoke after explosion
but the final effect is not I need,
how to make the smoke rising and rolling more realistic?
thanks
I am trying an explosion effect and want to append some rising and rolling to smoke after explosion
but the final effect is not I need,
how to make the smoke rising and rolling more realistic?
thanks
Technical Discussion » two quesetions about vex
- flyingc
- 160 posts
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jason_iversenthank you
FYI, there is also a VEX function called nrandom() which is a will return a different random number every time you call it. It might do what you expect but comes with the price, of course, that you can't rely on it to ever look the same twice.
but every particle will change velocity at every frame, like in a noise force field.Is there any way can fix this problem?
Technical Discussion » two quesetions about vex
- flyingc
- 160 posts
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Technical Discussion » two quesetions about vex
- flyingc
- 160 posts
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MiguelPerez
Well, you can create more than one Random and change the seed adding values to the ID. Then you can fit the range using the Fit Range VOP (talking about VOPs) and adjust it to be between -2 and 2. If you want to transform your points with this you can create a vector with three randoms as the components and add it to the position.
What do you exactly want to do with the random values?
the troublue is just here
for example ,i want to specify velocity for each particle use vector{rand($ID),rand($ID),rand($ID)} ,but i don't know how to get diffrent value for each component,
“Well, you can create more than one Random and change the seed adding values to the ID.” how can i get it? in pop I can only use $ID as seed
with some random vectors , I can get a group of normlized vector in arbitrary direciton so that i can more free control particle's velocity
Technical Discussion » two quesetions about vex
- flyingc
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thank you every one
i already have a good idea about Matrix,
but i have always been confused by the first question
in 3dsmax's Maxscript ,there is a random() function which can return diffent value for each evaluation,for example random 2. 5.,random
but in vex i can only find rand() function which only return same value between 0 and 1 for the same value for each evaluation,
how to build a similar function with random() fn in 3dsmax?
…..
sorry ,my english is not good
i already have a good idea about Matrix,
but i have always been confused by the first question
in 3dsmax's Maxscript ,there is a random() function which can return diffent value for each evaluation,for example random 2. 5.,random
but in vex i can only find rand() function which only return same value between 0 and 1 for the same value for each evaluation,
how to build a similar function with random() fn in 3dsmax?
…..
sorry ,my english is not good
Technical Discussion » a problem of prman in my houdini
- flyingc
- 160 posts
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i view renderman shader in shader view,when i change the backgroud type of shader view,often pop up a message box .then houdidi turn off.
how to deal with the problem?
how to deal with the problem?
Technical Discussion » two quesetions about vex
- flyingc
- 160 posts
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…Fresca,what is it means?
i want to use 4*4 matrix to build a coordsys(or space) so that i can set velocity in that space
i want to use 4*4 matrix to build a coordsys(or space) so that i can set velocity in that space
Technical Discussion » two quesetions about vex
- flyingc
- 160 posts
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1.i want to wire a vex pop,how can i get a value between two values for each particle without $ID as seed?such as (-2,2) or vector{-1,-2,-1} and vector{2,1,1}
2.in 3dsmax's script ,there is a martrix3 data which is a 4*3 martix ,for example martix3 ,I can understand it as follow pictrue.but in houdini'vex ,how can i understand a 4*4 matrix ,especially the last value of each row?
2.in 3dsmax's script ,there is a martrix3 data which is a 4*3 martix ,for example martix3 ,I can understand it as follow pictrue.but in houdini'vex ,how can i understand a 4*4 matrix ,especially the last value of each row?
Technical Discussion » how can i make new particles sactter on sepcifed plane ?
- flyingc
- 160 posts
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Technical Discussion » how can i make new particles sactter on sepcifed plane ?
- flyingc
- 160 posts
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base on the file that Miguel developed ,i use another way to realize that result.
i use velocity to construct a plane in which i can scatter new split particles ,but i can's correctly use variablessuch as $ID ,$VX in vop style pop
i use velocity to construct a plane in which i can scatter new split particles ,but i can's correctly use variablessuch as $ID ,$VX in vop style pop
Technical Discussion » how can i make new particles sactter on sepcifed plane ?
- flyingc
- 160 posts
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Technical Discussion » how can i make new particles sactter on sepcifed plane ?
- flyingc
- 160 posts
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thanks ,but now all particles emitted by split pop move in one direction, and i want to them scatter on one plane
other question is , how can i use vop to rotate a vector around a axis specified by another vector ?
other question is , how can i use vop to rotate a vector around a axis specified by another vector ?
Technical Discussion » how can i make new particles sactter on sepcifed plane ?
- flyingc
- 160 posts
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Technical Discussion » how can i make new particles sactter on sepcifed plane ?
- flyingc
- 160 posts
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I try use split pop to emitter some particles on a sepecifed plane(or coordsys)which perpendicular to a particle's move direction
what shall ido?
what shall ido?
Houdini Lounge » A trouble of houdini8!
- flyingc
- 160 posts
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Houdini Lounge » A trouble of houdini8!
- flyingc
- 160 posts
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hello
After I use Houdini8 for a while,the edges of interface become black and thick ,and the run speed become very slow.
why?
After I use Houdini8 for a while,the edges of interface become black and thick ,and the run speed become very slow.
why?
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