Bullet physics implementation and other stuff

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fsimerey
Very good work. Did you try with most complex rocks ?
Yeaah I tried, but at this moment It support only convex objects and “complex rocks” sound like a concave( So I break geometry to many convex bodies, but it was not fast).

But I must say, that I am very surprised, that SPH works on river, this is place for FLIP, but SPH works great, so I am very happy


edit: Tomorrow, I am getting new HDD, I wanted to create video, but I dont have space, so I think that one more 1TB will be enought and ouu and I order extra memory too
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cybermax
video: http://vimeo.com/21072178 [vimeo.com]
Its not good
Read discussion in last video for last news!
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Very cool!
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frogspasm_deux
Very cool!
thx.

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lookin good, keep at it! i like your bullet implementation over the other main one
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icarus551
lookin good, keep at it! i like your bullet implementation over the other main one
thx, I very love client/server implementation, so I will create server and client side for bullet too. With this new system you will not need to create loop(for more complex scene) with file nodes or feedback node(I get many emails from users and this is the bigest problem). Its more flexible and well-arranged!
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Nice bullet features there Cybermax!

I tried to use your compiled 581 version in 11.0.658, but nothing appears to work. Does it not work on the latest version of Houdini?

Or perhaps I just did something wrong? ops:

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BulletTest.hipnc (40.0 KB)

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You're going to need to get it built for the current version.
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Very impressed with the latest fluid video, by the way! Can't wait to play around with that.
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You're going to need to get it built for the current version.

I also tried it in build 581 and nothing seems to work with that either, so I'm beginning to think it pilot error.

Is there a simple example scene that is known to work in 581 around for me to examine?

Thanks

EDIT: Yep pilot error ops: found a working sample to look at..
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I just start testing splashes. Its not bad, but It can be better :?

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untitledd2.jpg (233.9 KB)
untitled1.jpg (253.5 KB)

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WOW! Amazing works! :shock: ,I like it!
At the moment I'm trying writing my own bullet SOP solver, and it's a hard work really, especially when I use btCompoundShape to get auto glue effect, I'm stuck in it, :x , and keep moving on very very very slowly :cry:
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Milan, fine detail like that I wouldn't bother putting through the surfacer, it's always going to end up looking spotty. In a real scenario you'd probably end up rendering them as points.
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oh_qxs
WOW! Amazing works! :shock: ,I like it!
At the moment I'm trying writing my own bullet SOP solver, and it's a hard work really, especially when I use btCompoundShape to get auto glue effect, I'm stuck in it, :x , and keep moving on very very very slowly :cry:
This is exactly whan I want. Inspire other to use HDK. Houdini is great tool, but If user working with HDK, Its a industry BOMB!!!So Glue effect its not simple, but you can do it!

Darric:
thx,
Yeeh, You right, I can render like points, but In this case, splashes are very massive( Its not only small pieces around). So I have plan to add some new features which allow me add more particles to main_simulation, then secondary splash sim can have very detail particles, so I can render like a points.

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cybermax
This is exactly whan I want. Inspire other to use HDK. Houdini is great tool, but If user working with HDK, Its a industry BOMB!!!So Glue effect its not simple, but you can do it!
thx man,just as you say, I CAN DO IT!!!
Although I am a maya user and starting learning houdini several months ago, but sure you are right, houdini is really a great tool expecially in VFX I think, it can give you powerful control and great freedom, yes I love this cool guy! hoho!
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oh_qxs
thx man,just as you say, I CAN DO IT!!!
Although I am a maya user and starting learning houdini several months ago, but sure you are right, houdini is really a great tool expecially in VFX I think, it can give you powerful control and great freedom, yes I love this cool guy! hoho!
I think that since I am using client/server system is possible make GPU Fluids for Maya. Actualy Its very simple, because server(which is alot of code) is exe file and clients are few plugins, which have very simple code(connect to the server, send data or orders,download data back, update houdini - with my SDK is only few rows). SoI think is very simple rewrite this code and create maya plugins and make some waves in maya. I dont know maya SDK(I used maya before I jump to Houdini, but I didnt create plugins), but I think that its not too hard.
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cybermax
SoI think is very simple rewrite this code and create maya plugins and make some waves in maya. I dont know maya SDK(I used maya before I jump to Houdini, but I didnt create plugins), but I think that its not too hard.
emm,yes it's not hard work actually,maya's API is as simple as his own script language named mel,so just as you mentioned the “client/server”, first do simulation in plugin,get the data,update display in maya,just as we do in houdini plugin,but it is more simpler,Do you want try?Because I have no time at the moment and have no idea of sim fluid using GPU , ops: ,but maya can give you more feeling of speed than houdini platform I think ,so ,what do u think? :wink:
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oh_qxs
emm,yes it's not hard work actually,maya's API is as simple as his own script language named mel,so just as you mentioned the “client/server”, first do simulation in plugin,get the data,update display in maya,just as we do in houdini plugin,but it is more simpler,Do you want try?Because I have no time at the moment and have no idea of sim fluid using GPU , ops: ,but maya can give you more feeling of speed than houdini platform I think ,so ,what do u think? :wink:
ok, I love houdini, so I dont want to jump back to maya, BUT When I end this client/server version I can send you server.exe and source codes for plugins and you can try to rewrite code for maya. So What do you think?
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