Dance has always been a collaborative process, from tribal dances to the great Tchaikovsky ballets to Diaghilev's list of artists that included George Balanchine, Igor Stravinsky and Pablo Picasso.

Today dance is venturing into technology as well (Cirque du Soleil, Troika Ranch, Attack Theatre), something that has been embraced by The Pillow Project, currently on view at Construction Junction in Point Breeze. Actually this production, "Projected," is the second in a series of four programs collectively titled "by volume."

Upon climbing the steep staircase to this wondrous urban space, one could explore some threads of continuity -- the progress of Ryan Hose's "Chapter 16," a series of sketches inspired by Douglas Adams' "The Ultimate Hitchhiker" and videos from previous productions on view in a gathering of television sets stacked in another corner.

"Miscellaneosity" had become "Miscellenosity." But it was still a captivating series of teasing improvisatory duets with percussionist PJ Roduta and, at one time or another, Elaine Russo, Beth Ratas and Mercedes Searer.

Pearlann Porter and her energetic posse of artists did a fine job on a concert that really didn't need prior knowledge of the first volume. There was a strong sense of continuity, past and present, and imaginative play with various video techniques.

The strictly video "Paradise" series -- "Rejected," "Forsaken" and "Lost" -- was filmed at Construction Junction by Jesse Sedon with company members and dealt with the social viability of a bar scene. What was most interesting, though, was the rhythmic impact of all the videos, along with others like Mike Cooper's "Assembly Line" and Sedon's "Like a Shark," and a crisp rhythmic editing to the underlying scores that made the films highly accessible.

As for the choreography, Porter liked to alter the perception of dance, a la Alwin Nikolais, but without interfering with the movement. Particularly strong was "The Projected," where meandering rectangles highlighted Russo's distinctively undulating moves. But "The Chase" had a misty kind of fluidity in two solos on a park bench for Maddy Landi and Beth Ratas, and "The Idea of Us" neatly combined reality and video fantasy.

Although the program focused on video and technological effects, Porter and The Pillow Project were able to retain an unerring sense of humanity, and that is no easy achievement.

The program will be repeated Friday and Saturday from 9 p.m. to 1 a.m. Tickets: $5; for more information call 412- 225-9269.