Usage:
set  keyword

Usage:
( ~set | unset )  keyword

Usage:
set  keyword  value

The following keywords indicate on/off toggles, where set keyword enables the option and ~set keyword or unset keyword disables it:

• autoColor - new color for each new model
• bgTransparency - transparent background
• depthCue - front-to-back shading (mist)
• echo - echoing lines in command files as they are executed
• flatTransparency - non-angle-dependent transparency
• fullscreen - make graphics window fill entire screen
• independent - make models rotate about individual centers
• shadows - interactive shadows
• showCofR - show center of rotation
• silhouette - outlines
• singleLayer - single-layer transparency

• bgColor - background color
• dcColor - depth-cueing color
• dcStart - front of depth-cueing ramp
• dcEnd - back of depth-cueing ramp
• eyeSeparation - for stereo, effective distance between the left and right eyes
• fieldOfView - angular field of vision
• maxFrameRate - target redraw rate
• projection - whether to use perspective or orthographic projection
• screenDistance - for stereo, effective distance from the viewer to the screen
• screenWidth - for stereo, physical width of the entire screen
• silhouetteColor - outline color
• silhouetteWidth - outline thickness
• subdivision - fineness of facets (triangles) in balls, spheres, sticks, ribbons
• subdivisionPixels (can also be ~set or unset) - level-of-detail adjustment in triangle fineness

See also: preset, linewidth, lighting, setattr, Effects, tips on preparing images, movie-related commands

Whether to give each newly opened model a different color; same as use new color... in the New Molecules preferences. For example, if the background is solid black or white:

#0

#1

#2

#3

#4

#5

#6

#7

#8

#9

See also: modelcolor

Sets the background color; color can be none or any color name that specifies a single color. Any transparency in the color will be ignored. Equivalent to background solid.

Whether to include opacity values (alpha) in PNG and TIFF image files saved from Chimera, to facilitate combining the images with different backgrounds in image-editing applications. With background transparency, if the Chimera background is a single solid color, it will be completely invisible in the saved images. (Note: TIFF images with background transparency may not be interpreted correctly by Adobe Photoshop.) Background transparency can also be enabled in the Save Image dialog or with the startup option --bgopacity.

Whether to use depth-cueing, front-to-back shading of the scene.

Sets the depth-cueing color; color can be none or any color name that specifies a single color. Any transparency in the color will be ignored.

Set the position of the depth-cueing ramp. Depth-cueing shading increases linearly from start to end, each expressed as a position relative to the front (0.0) and back (1.0) global clipping planes.

Whether to echo the line number and contents of each line in subsequently opened Chimera command files to the Reply Log and status line as that line is executed. Blank lines and comments (lines starting with #) are included.

Specify effective eye separation in millimeters for stereo.
See also: Camera

Set horizontal field of view in degrees (allowed range 0°< angle <180°).
See also: Camera

Whether to make apparent transparency independent of the viewing angle. Otherwise, transparent triangles (forming objects as well as surfaces) will appear more opaque when viewed edged-on than when viewed face-on.

Whether to use fullscreen mode, in which the graphics window fills the entire screen (available in Windows, Linux, and Mac-X11 versions of Chimera).

Whether to rotate models about their individual centers or a single collective center; set independent changes the center of rotation method to independent while ~set independent changes the center of rotation method to front center.
See the video mini-example. See also: cofr, focus, tile, Rotation

Set the maximum frame rate in Chimera to N frames per second (default 60). Although N is the target value, the actual rate may be lower depending on the rendering speed of the computer and the complexity of the scene. The actual frame rate can be reported in the status line using the accelerator rt (command ac rt).
See also: frame rate and movie speed

Which mode of projection to use: perspective, which makes farther-away objects smaller, or orthographic, which does not.
See also: Camera

Specify effective distance to screen in millimeters for stereo.
See also: Camera

Specify effective screen width in millimeters for stereo.
See also: Camera

Whether to show interactive shadows.

Whether to show “+” crosshairs (a plus sign) at the center of rotation. The plus sign will adjust to white or black for contrast against the background color, and will disappear when models are set to rotate independently (when the center of rotation method is independent).

Whether to show silhouettes, outlines that emphasize borders and discontinuities. This setting is global (applies to all models), but when it is on, silhouettes can be toggled for individual models with the command setattr, the Selection Inspector, or the molecule model attributes panel.

Sets the color of silhouettes; color can be none (equivalent to black) or any color name that specifies a single color.

Sets the linewidth of silhouettes.

Whether to render only the topmost layer of all transparent items. Showing only the topmost layer rather than all transparent layers simplifies the display and is recommended for de-emphasizing transparent parts.

Sets subdivision level, where a higher value increases the apparent smoothness of stick, ball-and-stick, sphere, and ribbon representations by increasing how many planar facets are used to approximate them.

By default, the fineness of faceting of stick, ball-and-stick, sphere, and ribbon representations is adjusted dynamically based on:

1. the subdivision parameter
2. the pixel width of the graphics window divided by the width of the view at the center of rotation

Setting subdivisionPixels substitutes the specified static pixels-per-length for the second value above and suspends dynamic adjustment. This can enhance responsiveness to manual zooming (by precluding further subdivision calculations) and can speed up rendering by avoiding overly fine subdivisions that may occur with large windows and/or highly zoomed-in views. Setting pixels-per-length to zero or a negative value restores the dynamic subdivision behavior, as does ~set subdivisionPixels.