The Sprinkle SOP is used to add points to either the surface or the volume of a SOP. You can create points on a surface, or within a closed volume based on the Method menu. The Surface method keeps the distribution of points constant per unit area of surface, whereas Per-Primitive gives each primitive, usually triangles, a constant number per primitive no matter their size.
The second input is used when you are scattering on a deforming surface. You generally don't want the distribution of points to jump while deforming, so you give the deformed surface as second input and the un-deformed surface as the first input. The Sprinkle SOP will then distribute points on the un-deformed surface, and then put them on their equivalent place on the deformed surface.
Parameters - Sprinkle Page
seed - Any number, integer or non-integer, which starts the random number generator. Each number gives completely different point positions.
method - ⊞ - Describes where points are located.
surface- Points are evenly distributed along the entire surface of the geometry. That is, smaller polygons receives fewer points on average than larger polygons, etc.
- Per Primitive
perprim- Points are distributed equally amongst each primitive. That is, each polygon receives the same number of points.
- Bounding Box
boundingbox- Points are distributed within the bounding box volume of the geometry. This can be faster, though less accurate than the volume method.
- Approximate Volume
approxvol- Points are evenly distributed within an approximation of the volume. Areas close to the surface may receive fewer points.
volume- Points are evenly distributed within the entire volume of the geometry.
Number of Points
numpoints - The total number of points created.
consolidate - Remove points until remaining are a minimum distance apart.
Distance to Nearest Point
neardist - Minimum distance when using Consolidate option.
- Input 0 -
- Input 1 -