
Bennell
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Name
Robert Hintz
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Location
Belfast, Maine, United States
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Bennell started following Creating a voronoi region without fracturing, Building a fur shader, Geometry to displacement shader and and 2 others
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Just out of curiosity, can I build a fur shader using VOPs? https://www.sidefx.com/docs/houdini/shade/build.html
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A little. Most of the jpg links are no longer there.
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I saw this video where you can turn geometry into displacement. https://www.youtube.com/watch?v=rwzo8LD4Tac I want to know how I can turn modeled geometry into a displacement shader. I'd like to turn the modeled geometry on the right into parameters for a displacement shader for the plane on the left shown in the picture.
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Never-mind. This question's been answered on Facebook.
- 1 reply
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- scales
- displacement
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Can you prevent displacement in Houdini from stretching? I've thought of creating a scales material, either directly in Houdini or in Substance Designer and export it in Houdini. I want to generate scales procedurally on reptiles like dinosaurs. I also only want the skin between the scales to stretch when dinosaurs move, not the scales themselves. Tiny scales like the ones on this dinosaur. https://cdna.artstation.com/p/assets/images/images/010/901/196/large/jacob-baardse-pararender.jpg?1526848727
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- scales
- displacement
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I've been trying to come up with a way to do scales in Houdini for some time. It all began when I learned that VFX studio Animal Logic developed a proprietary tool called RepTile for the movie Walking with Dinosaurs. RepTile allows artists to both manually and procedurally groom scales. It also allows scales to be rigid and not stretch while the skin does. A paper talks about the tool but doesn't show exactly how the process is done. A video shows an initial test of RepTile. A video shows another test where the skin is colored red and the scales are colored green to show the range of stretch. A video is a behind the scenes video for the Walking with Dinosaurs. It talks about RepTile at 0:19:12. Here's what I want to know. 1. How to render a subdivision surface as a scale in render time? 2. How to generate scales on a surface, have them stay flat, and not stretch as the skin does? 3. How to use curves to influence scatter points on a surface. 4. Should I have a triangulated mesh for the scales to grow on? 5. How scales can be shaped to fill their polygonal outlines? Any thoughts would be helpful. RepTile.pdf 08_RepTile_Scale_Test_01_InitialTest.mp4 10_RepTile_Scale_Test_03_SkinStretch.mp4 fxguidetv-ep184-WalkingWithDinosaurs-Insider-embeded.mp4
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- proceduralism
- procedural modeling
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Creating a voronoi region without fracturing
Bennell replied to Bennell's topic in General Houdini Questions
I've discovered this site. https://medium.com/@jakerice_7202/voronoi-for-the-people-60c0f11b0767 -
I want to use scatter points to create voronoi regions on a mesh similar to the clump map shown in the screen shot. No fracturing. Has anyone done that?
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Adding a displacement shader to fractured geometry
Bennell posted a topic in General Houdini Questions
When I use the voronoi fracture on a grid which gets it cut up into little pieces, can I use a displacement shader to the pieces individually like the mosaic tiles in the movie Rio as shown in this paper? Procedural Mosaic Arrangement.pdf -
How will the Cellular Noise VOP do that?
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In the the following paper, there's an image of an elephant figurine decorated with mosaic tiles. The voronoi diagram of the points created the tile shapes. What do I do to copy this method in Houdini? Dart_Throwing_on_Surfaces.pdf
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I didn't see the scene file till now.
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- geometry generation
- pattern
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How can I create a geometric pattern like the one shown in this video?
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- geometry generation
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How can I drive displacement scales using scatter particles as shown here. https://twitter.com/sandidolsak/status/747419942635569152
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Into Houdini.