You can use a signed distance field (aka sdf) representation of your geometry. That gives you a nice gradient to work with.
You can use the vdb from poligons to convert your geometry, but make sure that its close (water tight).
Cheers
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Technical Discussion » How to create an attribute gradient from edge of geo?
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- Alejandro Echeverry
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Houdini Lounge » Snippets Panel
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- Alejandro Echeverry
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Houdini Lounge » Post your favourite Wrangle SOP presets
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- Alejandro Echeverry
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Random Orientation for Copy instancing
vector randDir = set(rand(@ptnum+252+ch(“seed”)),rand(@ptnum+281+ch(“seed”)),rand(@ptnum+294+ch(“seed”)));
float angle = fit01(rand(@ptnum+741+ch(“seed”)),-3.14,3.14);
p@orient = set(randDir.x,randDir.y,randDir.z,angle);
vector randDir = set(rand(@ptnum+252+ch(“seed”)),rand(@ptnum+281+ch(“seed”)),rand(@ptnum+294+ch(“seed”)));
float angle = fit01(rand(@ptnum+741+ch(“seed”)),-3.14,3.14);
p@orient = set(randDir.x,randDir.y,randDir.z,angle);
Houdini Lounge » Houdini 15 Wishlist
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- Alejandro Echeverry
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It would be nice a way to track the editing of an asset when you make it editable, like some color coded nodes that are modified in comparison with the parameter defaults when you dive inside the asset.
Technical Discussion » Houdini 14 Graphic Issue
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- Alejandro Echeverry
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Houdini Lounge » Houdini 14 and RenderMan 19 ?
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- Alejandro Echeverry
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Yes, I was hoping more compatibility for RenderMan 19!! We will see if pixar do the bridge!!
Houdini Lounge » PhyShader
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- Alejandro Echeverry
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Houdini Lounge » Sneak peek h14
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- Alejandro Echeverry
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Houdini Lounge » Sneak peek h14
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- Alejandro Echeverry
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Work in Progress » Houdini xTools (xFragmenter and xScatter)
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- Alejandro Echeverry
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Work in Progress » Smoke Path Follow
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- Alejandro Echeverry
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Mohammed Issa
thanks for the file alejandro, i was following your work for awhile now. and also found this file im trying to understand.
im trying to recreate it to undersand it better but i had some problems.
if i leave the SOP scalar/vector field to initial, my sop volumes doesnt update,i have a simple turb noise on my curve.
but if i set it to always, and resize it by density, i gets slower than your example setup.
how do you get the data from the curve not to be clamp by the bounds. mine stays frozen and no data anymore even if i resize it during the simualtion.
Here is the file with the aswers.
Hope it helps!
Technical Discussion » Fabio Hair System
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- Alejandro Echeverry
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Houdini Lounge » Houdini 14 Wishlist
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- Alejandro Echeverry
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Joker386
otl Permission Ability inside of Houdini sometimes is very useful.
Sometimes we wanna lock internal nodes (and Codes) of our custom assets.
Something like Copy Protected method in the Orbolt , But doing this inside Houdini , And this feature just lock internal network and users can copy our otls on any system :idea:
I hope that too, but I doubt that, because of Orbolt.
If SESI implement this, Orbolt dies! :wink:
Work in Progress » Smoke Path Follow
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- Alejandro Echeverry
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Joker386alejandro
Hi!!
Test to drive smoke along a custom path.
http://vimeo.com/19882814 [vimeo.com]
Really good job Man :wink:
Thank you!!
Technical Discussion » VDB for collisions
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- Alejandro Echeverry
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Use a file data dop node and look for the Geometry/Volume subdata, save the it, and then you can load it with the same file data dop node.
Hope that helps, the dops data thing is a bit obscure sometimes.
Hope that helps, the dops data thing is a bit obscure sometimes.
Technical Discussion » VDB for collisions
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- Alejandro Echeverry
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Sure! You can use a dop node to save the Volume subData to then reuse again, like a naiad workflow, compute and save collisions then fetch collisions to less overheat sim.
Technical Discussion » Flip-exclude collision Object from 'Stick on Collision'
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- Alejandro Echeverry
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Yes! You can have a density representation of every collision object, and use that as a control field for the gas stick on collision microsolver.
Technical Discussion » Flip-exclude collision Object from 'Stick on Collision'
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- Alejandro Echeverry
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Houdini Lounge » New features in the upcoming release of Houdini
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- Alejandro Echeverry
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I think that they are very busy with Houdini Engine, it will be great to know more about H14, I really hope a viewport enhance!!
Work in Progress » Reel 2013
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- Alejandro Echeverry
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