Rhythm & Hues was brought in to make several of the effects for “Aliens in the Attic”, and talks about it to FXGuide in a new interview.
We use an HDRI camera that was specially built by Rhythm & Hues. It’s a cube-shaped camera with a lens on each side of the cube, which measures five inches on each side, so it’s fairy small. It mounts on a tripod on the corner of the cube. The HDRI camera takes a series of exposures that go from the deepest blacks to the brightest highlights and get the colour information out of the scene in a wide exposure – what we call a wedge. In addition to that, we use a chrome and gray ball pass.
Read the full article for the rest of the details, and various in-progress shots showing the composited frames.
via fxguide – visual effects school – Aliens in the Attic – Rhythm & Hues.
