I think you could cobble together something using the Crowd system. Simply add an attribute to a traffic light then check for that attribute when an agent (agents are vehicles in this situation) is close enough, via a CrowdTrigger running in Proximity mode. Transition from stop or go depending upon the value of the traffic light attribute.
Development wise, it really depends upon if you are constructing a scene for a specific shot or if you are just creating a simulator as an academic exercise.
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Houdini Lounge » triffic system
- Enivob
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Houdini Indie and Apprentice » ERROR: invalid machine name
- Enivob
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Houdini Indie and Apprentice » Tutorial to inflate text or objects?
- Enivob
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As a new user you might not be aware of the “second” forum for Houdini. It is called od|forum.
I did a search on that forum for inflate and found this link with an example file.
http://forums.odforce.net/topic/21483-how-can-i-inflate-cloth/?hl=inflate [forums.odforce.net]
I am still not sure how the technique works but you may want to start there.
I did a search on that forum for inflate and found this link with an example file.
http://forums.odforce.net/topic/21483-how-can-i-inflate-cloth/?hl=inflate [forums.odforce.net]
I am still not sure how the technique works but you may want to start there.
Houdini Learning Materials » Cant promote colormap in 15
- Enivob
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I find promoting kind of tricky on those nodes as well. The promotion area is actually a very small rectangle over the socket connector. So try making sure your mouse is in the right place. But there is a second way to promote which is to simply select the node and then move your mouse into the parameters window and scroll down until you find the field listed. At the very right-hand side of the field there is an icon that you can click to promote that field as well.
Technical Discussion » Vex code initial rotation in a pop solver
- Enivob
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Technical Discussion » [SOLVED]Pose Library Only Animates Some Bones?
- Enivob
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Hi All,
I was playing around with the new H15.244.16 Pose library tools and wonder if I have found a bug. It is a new system and I'm not quite sure how it is suppose to work but it seems simple enough.
Create a Simple Male under the Character TAB.
Add a new Pose Library window type or convert and existing window.
Click on the Network browse button and choose the simplemale character from the list, this will populate the Poses box and present some pose options.
With your timeline on frame #1 click on the Fighting Prepared pose.
Move your timeline to frame #24 and click on the Karate Kick pose.
Scrub the timeline and only the arm changes.
Shouldn't all bones in the RIG animate?
As an end-user I expected a full pose morph.
I was playing around with the new H15.244.16 Pose library tools and wonder if I have found a bug. It is a new system and I'm not quite sure how it is suppose to work but it seems simple enough.
Create a Simple Male under the Character TAB.
Add a new Pose Library window type or convert and existing window.
Click on the Network browse button and choose the simplemale character from the list, this will populate the Poses box and present some pose options.
With your timeline on frame #1 click on the Fighting Prepared pose.
Move your timeline to frame #24 and click on the Karate Kick pose.
Scrub the timeline and only the arm changes.
Shouldn't all bones in the RIG animate?
As an end-user I expected a full pose morph.
Edited by - Oct. 23, 2015 14:31:52
Technical Discussion » High res FLIP unpredictable
- Enivob
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I would say it is related to the fact that the ship is instantly in collision with the fluid. Try animating the ship into the FLIP area, from outside the FLIP area,then set the whole thing in motion.
There may be some information here as well.
https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=37761&highlight= [sidefx.com]
There may be some information here as well.
https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=37761&highlight= [sidefx.com]
Technical Discussion » High res FLIP unpredictable
- Enivob
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Houdini Lounge » [MacMini] R.I.P. (I'm Not Dead Yet)
- Enivob
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Thanks, yeah, I know. It's my only i7 machine, however, so I like the speed and the ram running @1600Mhz. Overall I can run Houdini blind' on the MacMini and rendering does work fine. As long as I leave Viewport Materials off I can work with silhouetted geometry in the viewport.
I do have a question on OdForum about the possibility of simply writing an OpenGL 2.1 shader and somehow using that instead of the default 3.1 that ships with Houdini. I still need to figure out how to set all that up. But that would be a per-geometry basis ‘fix’ it it can work at all..?
I do have a question on OdForum about the possibility of simply writing an OpenGL 2.1 shader and somehow using that instead of the default 3.1 that ships with Houdini. I still need to figure out how to set all that up. But that would be a per-geometry basis ‘fix’ it it can work at all..?
Houdini Indie and Apprentice » copy stamp downstream to shopnet in subnet
- Enivob
- 2536 posts
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Hmm… I can confirm the failure. Even using a stamp directly inside a material does not work for me.
Technical Discussion » High res FLIP unpredictable
- Enivob
- 2536 posts
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The first thing that comes to mind is scale. What scale are you trying to simulate? Can you post the problem HIP file?
Technical Discussion » Extrude not matching Curve
- Enivob
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Ah, I did not realize this was a new tool. I wondered why it had two inputs? I guess I'll have to give it a try. While workarounds are nice, there is no reason not to leverage new features either.
Technical Discussion » Agent Cam is Too Shaky
- Enivob
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Hi All,
I just tried out the new Agent Cam feature of H15 and I find it quite shaky. I created a sim using the new Fuzzy Obstacle example simulation. I selected a few different agents and applied cameras to them. When I switch to those cameras it is like handing a camcorder to your kid. The lens is all over the place and it would probably be a waste of time to even render such footage, in most cases.
Is there any way to add stabilization to the camera? Does anyone have a recipe for such a RIG?
Thanks
I just tried out the new Agent Cam feature of H15 and I find it quite shaky. I created a sim using the new Fuzzy Obstacle example simulation. I selected a few different agents and applied cameras to them. When I switch to those cameras it is like handing a camcorder to your kid. The lens is all over the place and it would probably be a waste of time to even render such footage, in most cases.
Is there any way to add stabilization to the camera? Does anyone have a recipe for such a RIG?
Thanks
Houdini Lounge » [MacMini] R.I.P. (I'm Not Dead Yet)
- Enivob
- 2536 posts
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I am sad to report that H15 has pushed the MacMini closer to the grave.:cry:
I have El Capitan installed and the first release of H15. What used to work in my viewport in H14 no longer works in H15. It is easy to confirm, if anyone is interested in doing so. Simply open H15 on a MacMini with Intel HD4000 (or 3000) and CTRL-Click on the MocapBiped1. This crashes H15. The New Simple Male and Simple Female rigs also crash H15.
Any feature that has to draw a font in the viewport seems to fail as well. If I turn on display numbers, crash. If I turn on XYZ coords, crash. And this should be a clue to developers that it can't all be Apple's fault. Something is going wrong in the Houdini code that is constructing the font/surface for the viewport.
Enabling a collision guide for the FLIP simulation is now out of the question. This causes H15 to crash.
The FLIP tank has a broken node when I enable OpenCL for the flip solver using H15. projectnonconvergent, inside BLUE solve box has a coding error.
If I choose Grain for Guide Visualization of particles the viewport update for the default flip tank drops to 14 frames per minute.
Particle display for the FLIP tank produces nothing in the viewport so your flip tank appears completely empty when you create it unless you have Point display turned on. The Sprite display does work and it probably the best option for a MacMini running H15.
The + icon for adding paths to the dialog boxes is broken. It either grabs on level up or one level down from the folder where you are when you click the button. Quite annoying.
Overall I can hear Jim Morrison singing in the background…
I have El Capitan installed and the first release of H15. What used to work in my viewport in H14 no longer works in H15. It is easy to confirm, if anyone is interested in doing so. Simply open H15 on a MacMini with Intel HD4000 (or 3000) and CTRL-Click on the MocapBiped1. This crashes H15. The New Simple Male and Simple Female rigs also crash H15.
Any feature that has to draw a font in the viewport seems to fail as well. If I turn on display numbers, crash. If I turn on XYZ coords, crash. And this should be a clue to developers that it can't all be Apple's fault. Something is going wrong in the Houdini code that is constructing the font/surface for the viewport.
Enabling a collision guide for the FLIP simulation is now out of the question. This causes H15 to crash.
The FLIP tank has a broken node when I enable OpenCL for the flip solver using H15. projectnonconvergent, inside BLUE solve box has a coding error.
If I choose Grain for Guide Visualization of particles the viewport update for the default flip tank drops to 14 frames per minute.
Particle display for the FLIP tank produces nothing in the viewport so your flip tank appears completely empty when you create it unless you have Point display turned on. The Sprite display does work and it probably the best option for a MacMini running H15.
The + icon for adding paths to the dialog boxes is broken. It either grabs on level up or one level down from the folder where you are when you click the button. Quite annoying.
Overall I can hear Jim Morrison singing in the background…
SI Users » Way of beginner
- Enivob
- 2536 posts
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Softimage is dead so you might as well learn Houdini.
Houdini is a lot of fun once you get the hang of it. The only way you can fail is by giving up. Check out the video tutorials in the learning section. The information “sticks” much better if you follow along.
https://vimeo.com/goprocedural [vimeo.com]
https://vimeo.com/user2030228 [vimeo.com]
Is it possible without technical knowledge to understand Houdini?Of course.
Houdini is a lot of fun once you get the hang of it. The only way you can fail is by giving up. Check out the video tutorials in the learning section. The information “sticks” much better if you follow along.
https://vimeo.com/goprocedural [vimeo.com]
https://vimeo.com/user2030228 [vimeo.com]
Technical Discussion » Extrude not matching Curve
- Enivob
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There are a couple of ways to achieve your goal. You could just use a polywire but you need to convert your curve from Nurbs to Polygon. You could also just copy a grid, or any other shape, along the points of the nurbs curve and skin the results. The polyframe helps with orientation along the curve.
I recommend this tutorial, there are a ton of useful modeling techniques.
https://vimeo.com/112114913 [vimeo.com]
I recommend this tutorial, there are a ton of useful modeling techniques.
https://vimeo.com/112114913 [vimeo.com]
Houdini Indie and Apprentice » Weird Viewport Shading in Mac
- Enivob
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I think you missed the machine specs. The Intel HD3000 is below spec and not supported. I have a HD4000 and nothing has been fixed. I even saw a post today where a developer mentioned that SideFX can not even leverage the new Metal in EL Capitan because it is below their OpenGL spec.
I wonder how C4D and Blender do it, however…? Their viewports work fine.
I wonder how C4D and Blender do it, however…? Their viewports work fine.
Houdini Indie and Apprentice » Need info on rigging mapping characters ?
- Enivob
- 2536 posts
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In Houdini terms, skinning is called “Capture”. You capture the geometry around a bone. The bone has influence and is weighted by the capture region.
Technical Discussion » How do I save/open image sequence in Houdini?
- Enivob
- 2536 posts
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Generally you use the OUT network for generating output. Via Mantra node, OpenGL, Wren or any there 3rd party render system. In each of those ROP nodes (Render Output) there is a field for specifying your disk location. Remember to use the $F global variable if you want to output a series of frames. You can also add zero padding to the number in the filename by extending $F to say $F3 or $F4 which will pad the file number the requested number of digits
$HIP\myfile_$F4.exr
$HIP is the location where you have saved your Houdini scene file. If you have not saved the file, $HIP points to some temp folder on your system. So try to save your file before you render.
$HIP\myfile_$F4.exr
$HIP is the location where you have saved your Houdini scene file. If you have not saved the file, $HIP points to some temp folder on your system. So try to save your file before you render.
Houdini Indie and Apprentice » ALT+E not working?
- Enivob
- 2536 posts
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On OSX, it is not ALT-E but CMD-E instead. ALT-E just makes the expression back tick symbol appear in the text field.
What OS are you using?
Try CTRL-E, maybe that is it?
What OS are you using?
Try CTRL-E, maybe that is it?
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