SDF used to Deform Geometry

Building upon that collision detection, we can also use the SDF to deform the object upon the collision. Using the SDF value and some math, the grid can be deformed to create footprints stamped on by the Torus.

Computer Graphics, HoudinibubblepinsSeptember 22, 2019houdini, sidefx, SDF, SDF negative, signed distance field, distance, position, math, deform, deforming geometry, deform grid, displacement, displace P, animation, deformation, deforming grid, vector, vector math Comments

SDF (Signed Distance Field) used to Detect Overlapping Objects

SDF is short for signed distance field and describes the interior volume of an object. How thick an object is from the middle to the surface? How deep does the cylinder extend? From any point inside an object, using the SDF, it is possible to easily grab the distance to the surface of the object in order to know the depth.

Computer Graphics, HoudinibubblepinsSeptember 22, 2019houdini, sidefx, sdf, signed distance field, volume, distance, collision, collision detect, overlap, SDF Value Comments

Volume, Core Concepts in Houdini

Core concepts for Volumes. How exactly is volumes made up of voxels? How can you picture it? If you’re new to volumes, this is a great refresher.

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