Note: this page describes v1.6, and does not yet include v2 features.
The Lighting window is where you post-process the rendered data with 3D lighting and other effects. In general it is a non-destructive process because the output goes to a different picture. Trying out different styles is much faster than rendering again, and you can save different pictures created from one render. You can also use combinations of lighting and 2D filtering in different sequences.
The left side of the window contains the general controls.
The right side of the window contains collapsible panels for the groups of lighting parameters. Most controls can have negative values for inverse effects.
3D light sources are the main feature of the lighting window.
Surface cleaning allows the depth map to be changed, for defect removal or dramatic filtering.
Depth controls allow variation of the apparent depth of the object.
Color controls provide adjustment of the contribution from rendered color. Iridescence controls provide a variety of metallic and rainbow banding effects, based on the light sources.
Reflection and refraction effects are based on environment mapping from the object itself and/or another picture.
Glow effects use the object colors modified by light colors, or can be modified or replaced by a glow color. Haze allows distance blending effects such as fog or underwater, or fading to background. The background source can be a color or a picture.
Examples of different lighting applied to the same render of an object.