Sorry for the belated reply. My use of Houdini is very sporadic.
But I am not wrong (never! - ). This operation is not sub-d.
The original cube in my image from MAX has *the same number of faces* as its relaxed (not sub-divided) version. I made it myself, I should know. Both have lots of polygons, yes.
The “relaxing”operation does not modify topology.
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Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
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Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
- 22 posts
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Hm… Thanks. But in the image I posted the cube and the relaxed mesh have the same number of polygons.
I actually managed to make things work In Houdini by changing connectivity of the Polygon mesh to Triangles. Seems the same as Relax in MAX then, only some rippling around corners…
As for the geometry from the original post. Yes, it is somewhere. But only in sketches… So, never made it here.
I actually managed to make things work In Houdini by changing connectivity of the Polygon mesh to Triangles. Seems the same as Relax in MAX then, only some rippling around corners…
As for the geometry from the original post. Yes, it is somewhere. But only in sketches… So, never made it here.
Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
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Not sure it is a good idea to bring to life an old post but it is somewhat relevant…
If I want to relax a mesh, how do I go about it in Houdini? Here is the result of the Relax modifier in 3Ds MAX (and this is what I am after). In Houdini, Smooth does not do it if I use a mesh box. What am I missing?
Thanks.
If I want to relax a mesh, how do I go about it in Houdini? Here is the result of the Relax modifier in 3Ds MAX (and this is what I am after). In Houdini, Smooth does not do it if I use a mesh box. What am I missing?
Thanks.
Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
- 22 posts
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Ah, great. This is nice. Looking at the Polywire example in Help, changing widths (via alpha?) is a bit of a hack (or is it just my ignorance?).
How would I go about automating the width assignment? Say, influenced by the distance from some arbitrary point(s) for starters? Given that this is for learning, I am curious to know the workflow with interface scripts, VOPs, Python SOPs, if anybody feels so generous.
Thank you.
How would I go about automating the width assignment? Say, influenced by the distance from some arbitrary point(s) for starters? Given that this is for learning, I am curious to know the workflow with interface scripts, VOPs, Python SOPs, if anybody feels so generous.
Thank you.
Houdini Lounge » Loading Examples
- j.chor.r
- 22 posts
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Reinstalled everything and examples now load. But launching does not work: “Exception: Cannot load example from a central help server.”
This is a default install with no such server enabled. Is it something to do with paths? I have changed the HOME path recently.
This is on Win XP.
Cheers.
This is a default install with no such server enabled. Is it something to do with paths? I have changed the HOME path recently.
This is on Win XP.
Cheers.
Houdini Lounge » Loading Examples
- j.chor.r
- 22 posts
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Suddenly, I cannot load or launch examples files. Nothing happens at all (from the built-in browser). Any ideas? What to try?
Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
- 22 posts
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I see that using particle fluid surface one can come pretty close (at least with one curve). Here it is with meatballs an option and 2 subdivision. However, it would be great to relax this geometry. E.g., by making polygons tend towards planarity and even sizes, like here:
see Combined_mesh_optimization_demo
http://www.grasshopper3d.com/group/kangaroo/page/example-files [grasshopper3d.com]
if you have no access to the software, here is something using the same ideas for a somewhat different/related purposes:
http://www.youtube.com/watch?v=M2AgX_W6dTY [youtube.com]
Thanks for further suggestions.
Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
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Thanks. I am looking at the fluid surface as advised. Had a look at the example too. I should have explained better. The ambition is to produce considerably more complex topologies.
E.g., have a look here: http://n-e-r-v-o-u-s.com/cellCycle/index.php [n-e-r-v-o-u-s.com]
Not from lines but similar to the cellular geometry to what I had in mind…
Or here:
E.g., have a look here: http://n-e-r-v-o-u-s.com/cellCycle/index.php [n-e-r-v-o-u-s.com]
Not from lines but similar to the cellular geometry to what I had in mind…
Or here:
Technical Discussion » Wrapping curves or particles with a mesh
- j.chor.r
- 22 posts
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Say I have some interconnected curves (or points/particles) and I want to give them thickness by wrapping them with a mesh. How would I go about it?
Blocking out with basic meshes and smoothing comes to mind. Or isosurfacing. Both should be possible in Houdini but how?
Or, perhaps, an equivalent of this can be attempted?
http://3daliens.com/joomla/index.php?option=com_content&view=article&id=51:pwrappermaxmaya&catid=36:products&Itemid=55 [3daliens.com]
Thank you for the ideas and advice.
Blocking out with basic meshes and smoothing comes to mind. Or isosurfacing. Both should be possible in Houdini but how?
Or, perhaps, an equivalent of this can be attempted?
http://3daliens.com/joomla/index.php?option=com_content&view=article&id=51:pwrappermaxmaya&catid=36:products&Itemid=55 [3daliens.com]
Thank you for the ideas and advice.
Technical Discussion » Houdini to Flash
- j.chor.r
- 22 posts
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And furthermore - all of this is not needed if you simply make sure to specify Paper Dimensions is wren output controls (thanks to the support). Then the resulting *.ps file is readily convertible into PDF with Adobe Distiller and the rest…
Technical Discussion » Houdini to Flash
- j.chor.r
- 22 posts
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This conversation with myself is a little crazy but here it is in case someone else is interested:
A workflow to write and use Postscript files from wren, Houdini vector renderer:
1. Write a *.ps file from wren.
2. Convert to PDF using Pstill http://www.wizards.de/~frank/pstill.html [wizards.de] (with my complex file, Illustrator gets stuck, it is also larger than its Artboard and is impossible to fix, so instead…)
3. Open in Rhino and rescale to fit when asked. Export as 8.ai
4. Open in Illustrator and edit
A workflow to write and use Postscript files from wren, Houdini vector renderer:
1. Write a *.ps file from wren.
2. Convert to PDF using Pstill http://www.wizards.de/~frank/pstill.html [wizards.de] (with my complex file, Illustrator gets stuck, it is also larger than its Artboard and is impossible to fix, so instead…)
3. Open in Rhino and rescale to fit when asked. Export as 8.ai
4. Open in Illustrator and edit
Technical Discussion » Houdini to Flash
- j.chor.r
- 22 posts
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Any advice? I am still unable to use the postscript files wren is writing. Can anybody please tell me how to open them in Illustrator?
Thank you.
Thank you.
Technical Discussion » NURBS curve
- j.chor.r
- 22 posts
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Technical Discussion » NURBS curve
- j.chor.r
- 22 posts
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How can I draw a closed NURBS curve and not have it filled with surface? For rendering with wren as wireframes?
Thanks.
Thanks.
Technical Discussion » Houdini to Flash
- j.chor.r
- 22 posts
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OK, I have managed to get a file written but it is empty when opened in Illustrator or similar. I tried writing .ps file and converting to .eps using adobe Distiller (see below) with no luck.
http://forums.odforce.net/index.php?showtopic=1492 [forums.odforce.net]
What else to try?
http://forums.odforce.net/index.php?showtopic=1492 [forums.odforce.net]
What else to try?
Technical Discussion » Houdini to Flash
- j.chor.r
- 22 posts
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Can you please advise on HOW to use wren to write postscript? I have looked through help but it does not explain it.
All I manage to get is :Invalid usage for display command
How do I set the output file type and path?
I am just after a still in the first instance.
Thank you.
All I manage to get is :Invalid usage for display command
How do I set the output file type and path?
I am just after a still in the first instance.
Thank you.
Technical Discussion » Modelling as Volume Sampling
- j.chor.r
- 22 posts
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Soothsayer
Thanks this is very close.
SYmek
Also thanks. Found it. But it does not work for me. Example files loads with errors in v.10 and the Asset does not seem to be doing anything whatever geometry I am connecting. Have to try more…
Technical Discussion » Modelling as Volume Sampling
- j.chor.r
- 22 posts
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Which one do you mean? Your link takes me to the general list rather than to a particular example. Unless I am missing somethings…
Technical Discussion » Modelling as Volume Sampling
- j.chor.r
- 22 posts
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I would like to assemble a procedural model that could take several NURBS blobs and divide them into cubes of arbitrary dimensions, in a similar way it is done for volume sampling. The final model would then consist of cubes (or other shapes) that would be confined by the (invisible) NURBS blobs. I guess they do not have to be NURBS at all for this purpose, actually.
Any suggestions on how this might be doable in Houdini?
Any suggestions on how this might be doable in Houdini?
Houdini Lounge » wxPython is now available in 64 bit version
- j.chor.r
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Does wxPython Win64 unicode work on Windows XP 64, Houdini 10? 3D Buzz tutorials say unicode versions could not work in Houdini when they were making their videos?
Thanks.
Thanks.
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