Radiosity Indoor Lighting

Photometric lights

This scene has 3 instanced free point lights and one free area.

Area Shadows

The integrity 2, and quality 5, of the shadows are the defaults and are set as disc lights. The way to improve area shadows if necessary is increase those numbers as shown here [5 and 10, resp.] The dimension of the light area is also specified, and is in real world units.

A general tip for area shadows: Turn jitter down, turn quality up. Try it but do what works.

Materials

All are based on the architectural templates. There materials are designed for use with photometric lights and radiosity. The shade is a translucent material, a variation of the translucent paper. It affects the light color in the room quite a bit.

The Radiosity as displayed in the Viewport:

The render

The render time was long, due to the translucent shade and the metal lamp stand. I am pleased with the soft area shadows.