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Showing results for tags 'tangent'.
Found 11 results
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Hello there! How would you calculate the vector depicted as the red arrows in the image. PolyExtrude node uses it when given an unshared edge group. I've tried a polyframe's tangentu and tangent crossed in vex with the Normal. Without luck. It doesn't seem to be just a continuati...
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Hey folks, proud to present LYNX Tools, a collection of production proven open source tools to accelerate your workflows! All mentioned tools are free to download via the links below and are licensed with a full HoudiniFX license. All Houdini Assets have complete Houdini native documentation av...
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I am struggling a bit to build a setup that can bake DPdu/dv onto the points/vertex of an object. I am trying to then pass this info onto a series of scattered points across the surface that I am caching before passing to another application. The issue is I cannot seem to calculate DPdu for in...
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Hello guys, I am trying to recreate a tangent space blend shape in Houdini. Coming from Maya, I used a lot of tangent space blend shape to correct bad poses, and if fairly simple using the shape editor in newer Maya version. Now the question is, how can I create a similar custom blend...
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Hi all, Ive recently started looking in to using the wire capture and wire deform SOPs, all is going well however, when deforming on a simple bend i am having to compromise between mesh curvature and stretching Uvs. It seems that toggling between "Align Tangent only" and "Align Tangent with Att...
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Hi, The picture shows an object , create > test geo > add velocity > vdbFromPolygon with vel field > visualize velocity. I wonder how to split velocity to tangent velocity and normal velocity. I guess we don't have a node to do it by one click, and need to work on volume vop/wrangle....
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Hey Guys! In a recent demo vid on how Houdini can be used in games, they showed how ocean fx can be used to create normal maps for fluid. at 7:46 I'm just wondering, how do I render the normal map? So far, I unwrapped my grid, and used polyframe to get my normal, tangent and bitangent. But...
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I recently came across Zach's awesome work and saw this piece. Started hunting down how to achieve such an effect and found circle tangent chains is what they are called. I couldn't find out how to actually make one though? Does anyone know where I can find more info or how to do this? I was...
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Hello guys I need some help. I am trying to get a nice tail for the marbles in this DOP simulation. Under the Geometry node "Geometry Velocity Blur" us checked and in the Mantra node I am enabling to render Motion Blur. Is there a way to re-calculate the direction of the blur based on the particle's...
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Hello everyone, I am trying to apply some normal maps in tangent space to some models. I used both Zbrush and xNormal for exporting the normals, none of them work. As far as I understand it, there are two types of normal maps, tangent and object space. Since the geometry will be deformed, I am usi...
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I don't know why, but I've never successfully been able to import a normal map into houdini from zbrush or mudbox. I've had this issue for a year now, and I always just do bump instead. It works, but I'd rather have a tangent space normal map. Both tangent space and object space appear to screw up t...
