Good day. I have a massively complex object with many thousands of parts modeled that are too small to render. I would like to check the bbox size of each connected set of prims and then delete below a certain bbox size threshold. I am not a coder, but know some python. I have a little (very little) experience with vex, although I am learning.
Can anyone suggest an approach to this problem? I have tried a foreach loop with python inside, tried a vex wrangle and a vex vop, but I don't know enough to get it to work.
Any help is greatly appreciated.
Nick
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Technical Discussion » Cull geometry by connected bounds
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- lor
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Houdini Lounge » What is up with light "Exposure"?
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- lor
- 292 posts
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anon_user_37409885
A lot of work these days does not use traditionally trained camera/lighting people. They will happily look at a monitor or grade and just make it work. Any digital artists unable to deal with an extra control called 'exposure' is not quite right for the industry these days.
Sounds light Ior is simply advocating his business model of traditional training... lol. Next he'l be deriding the Richter scale for not showing earthquakes in a linear form so people truely understand the power of nature.
Hey, thanks for the insult, but this totally misses the point. How about civil discourse and debate rather than cynical insults. Anyone properly trained in photography understands. Those whose only argument is personal attacks should probably step back.
Edited by lor - 2023年6月20日 16:09:25
Solaris and Karma » Use instance ID in material?
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- lor
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Good Day.
Can anyone suggest in LOPs how I might use an instance ID in a material. I'm trying to get material variation on each instance of a mesh.
Thank you for any ideas.
lor
Can anyone suggest in LOPs how I might use an instance ID in a material. I'm trying to get material variation on each instance of a mesh.
Thank you for any ideas.
lor
Edited by lor - 2021年5月4日 13:35:17
Houdini Lounge » Solaris/Redshift ramp.
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- lor
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Has anyone had any luck getting a redshift ramp to use object space instead of UV space?
If so, would you kindly share?
Thanks
lor
If so, would you kindly share?
Thanks
lor
Houdini Lounge » Set position of world space texture
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- lor
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Good day. Can I set a textures position on geometry using world space, but then have it stick to the geo? Anybody know a technique for this?
Thanks
lor
Thanks
lor
3rd Party » Houdini Material Utilities released
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- lor
- 292 posts
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Set up Houdini shader networks with Substance Painter texture exports instantly using Houdini Material Utilities. Six setup tools to help you get done faster.
https://gum.co/hmutils [gum.co]
#vfxnews #houdinifx #Houdini #Shaders
https://gum.co/hmutils [gum.co]
#vfxnews #houdinifx #Houdini #Shaders
Technical Discussion » Hair guides in Karma visible
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- lor
- 292 posts
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I set up this hair in SOPs then did a SOP import all into the stage. Although the hair guides are turned off and invisible in the mantra render, they show up in Karma. Am I missing something or is this unexpected behavior? Please see images.
lor
Mantra
Karma
lor
Mantra
Karma
Edited by lor - 2021年3月4日 13:34:58
Technical Discussion » Hair Generate question
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- lor
- 292 posts
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Technical Discussion » Hair Generate question
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- lor
- 292 posts
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Good day. As you see in the attached image, the generated hair fibers along each guide appear to be exactly the same length, ending a strand at a very flat ending, which looks really unnatural.
Am I missing something? Is there a way to vary the length of the fibers per strand? I don't see it.
Thanks for any help.
lor
Am I missing something? Is there a way to vary the length of the fibers per strand? I don't see it.
Thanks for any help.
lor
Houdini Lounge » Houdini Master Classes with Andrew Lowell: COMMANDING SOPs
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- lor
- 292 posts
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Coming up next: Dynamics, Mastery of rigid body constraint
Mar 27-28. https://cg-masters.com/houdini-master-class-series/ [cg-masters.com]
Stay tuned for details.
Mar 27-28. https://cg-masters.com/houdini-master-class-series/ [cg-masters.com]
Stay tuned for details.
Edited by lor - 2021年3月1日 19:55:54
Houdini Lounge » Houdini Master Classes with Andrew Lowell: COMMANDING SOPs
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- lor
- 292 posts
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For FX Professionals looking to upgrade Houdini Skills.
COMMANDING SOPS with Houdini guru Andrew Lowell. Live instructor, online training. Feb 27 and 28th.
Limited space.
Time to level up.
https://cg-masters.com/houdini-master-class-series/ [cg-masters.com]
COMMANDING SOPS with Houdini guru Andrew Lowell. Live instructor, online training. Feb 27 and 28th.
Limited space.
Time to level up.
https://cg-masters.com/houdini-master-class-series/ [cg-masters.com]
Edited by lor - 2021年2月20日 16:36:16
Solaris and Karma » Geometry Light in LOPs
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- lor
- 292 posts
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Almost a year since this topic was discussed. @brians do you know if there has been any development? geo/mesh lights are a staple of the lighting artist.
thank you
lor
thank you
lor
Solaris and Karma » Solaris Dome Light is really an Environment light?
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- lor
- 292 posts
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OK, I see. Wow, there's so much strange, legacy terminology in renderman. It's a shame the whole industry is bending to that. Developers should be seeking to eschew obfuscation, not reinforce it. This just makes crews slower and shots more expensive.
lor
lor
Solaris and Karma » Solaris Dome Light is really an Environment light?
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- lor
- 292 posts
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Well sure....but look at the light. the opengl widget is even hemispherical. And ps, this aint renderman. 
Solaris and Karma » Solaris Dome Light is really an Environment light?
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- lor
- 292 posts
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Solaris has a "dome" light.
A dome is a hemisphere.
In openGL the dome light looks like a hemisphere.
However light from a solaris dome light appears to be spherical, like an environment light. And there is no "clip to y positive hemisphere" switch.
Is this light still in development?
Thanks
lor
H 18.5.351
Win 10
A dome is a hemisphere.
In openGL the dome light looks like a hemisphere.
However light from a solaris dome light appears to be spherical, like an environment light. And there is no "clip to y positive hemisphere" switch.
Is this light still in development?
Thanks
lor
H 18.5.351
Win 10
Edited by lor - 2021年2月5日 14:47:56
Solaris and Karma » How to create mesh light in solaris
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- lor
- 292 posts
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Good Day.
Importing a geometry light using a sceneimportlights node from /obj does not appear to work.
I don't see an option to create a geometry light in the stage.
Is this possible yet?
lor
Importing a geometry light using a sceneimportlights node from /obj does not appear to work.
I don't see an option to create a geometry light in the stage.
Is this possible yet?
lor
Technical Discussion » Box Cutter development - future
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- lor
- 292 posts
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Hello. Box cutter is pretty great.
Will it be developed in the future so we can use any mesh shape, rather than a box?
lor
Will it be developed in the future so we can use any mesh shape, rather than a box?
lor
Technical Discussion » RFE: Sun
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- lor
- 292 posts
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Please change sun default sun angle to 0.53 which is physical. I have had to change this at least a thousand times because 5 degrees is so radically wrong for sun on earth.
lor
lor
Technical Discussion » Solaris>Renderman 22.3 - Distant light busted
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- lor
- 292 posts
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lor
Can anyone confirm that distant lights do not render when using Solaris > Renderman 22.3?
lor
The answer is that Renderman expects values in the ~50,000 range for intensity, which is not “normal” but is certainly more physically plausible. The sun really is many thousands of times brighter than a light bulb.
Thanks to Houdini Support for the find.
lor
Technical Discussion » Solaris>Renderman 22.3 - Distant light busted
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- lor
- 292 posts
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Can anyone confirm that distant lights do not render when using Solaris > Renderman 22.3?
lor
lor
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