![]() ![]() The interpolated curves are only following the guide shapes and not the local density.* Done this way, long hair grooms need few interpolating guides to control flow while also giving enough hair density near the tip to style with modifiers. Attached is a similar setup in Xgen with a basic density map (Image 4). This kind of interpolation does not happen in Ornatrix or Xgen as far as I know. ![]() Increasing the radius parameter beyond the set limit of 0.2 begins to inhibit the guide's ability to shape the generated hair and delivers unpredictable results (Image 3). Essentially I interpret the basic difference as being Interactive works with brushes and maps (from anywhere) whilst xGenOld works with brushes and Artisan maps. You can still see noticeable segmenting near the roots and tips (Image 2). I created a groom in the regular xGen and then recreated it in XGen Interactive. The “influence radius/decay” parameters in Houdini do not exactly resolve this issue as they are essentially hiding the clumping effect by increasing the radius of them. ![]() Note that in the shown example I am already using an attribute map to drive the density. This creates a clumping-like effect even without any hairclump nodes in the chain. Specifically, the guides are not only influencing the shape of the hair as we would expect but also the local density of the generated hair (Image 1). The default hair interpolation in Houdini behaves in a suboptimal way for grooming long hair. ![]()
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