CompuServe Messages

Sculpt4d

    09-Dec-90 13:38:11
Sb: #3324-Sculpt4d
Fm: Willie Schreurs 71500,2232
To: Michael Sternberg 76147,42
> …what are the CGS spheres? Something I've missed in S4D? That's CSG, which stands for Constructive Solid Geometry. These are "true" spheres, described by a centre and a radius rather than by vertices and triangular faces. They were used in the Juggler demo, but were not present in early versions of Sculpt. They *are*, however there in more recent versions (I think the one I have is v2.09; the program and manual are at work, so all of what I say here is from memory, but it should be fairly close). You get them by adding a sphere as usual, but typing "-1" into the requestor when asked for the number of subdivisions. They are represented in the tri-view as a 1-subdivision (ie 12-vertex) sphere, and will also appear that way if rendered in the non-ray-tracing modes (wire, sketch, painting). In snapshot and photo mode, though, what you get is a smooth sphere, with no facets. They have their limitations, but if you just need spheres, they are great! …wjas {;-O>