This section describes the PEX remote configuration parameters. In the Setup menus, some PEX parameters are in Change Setup Parameters (in the PEX and PEX Colors hide boxes), and some are in Change User Preferences (in the PEX hide box). PEX parameters are not saved in NVRAM.
Setting the Parameters Listed in Change Setup Parameters
The recommended terminal memory listed in the Release Notes is based on the default values of these parameters. Increasing the values of these parameters places increased demands on terminal memory.
Specifying the Number of Clipping Planes
The pex-max-model-clip-planes parameter specifies the maximum number of half-spaces that can be defined for the purpose of model clipping. Half-spaces are defined by the clipping plane. A half-space is an infinite region of modeling coordinate space bounded on one side by the clipping plane.
Table 14-1 pex-max-model-clip-planes Parameter
Possible Values
Result
default
64
integer
The maximum number of model clipping half-spaces that can be defined. Range: 6 to 65535.
Specifying the Number of Name Sets
A name set provides an identifier (unique name) for an individual primitive or a group of primitives. The identifier can then be used to pick or highlight all the primitives in the group or make them invisible.
Table 14-2 pex-max-nameset-names Parameter
Possible Values
Result
default
256
64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, or 32768
The maximum number of identifiers that can be defined.
Specifying the Number of Non-Ambient Light Sources
The non-ambient light source types are directional light, positional light, and spot light.
Table 14-3 pex-max-non-ambient-lights Parameter
Possible Values |
Result |
---|---|
default | 64 |
integer | The maximum number of non-ambient lights that can be defined. Range: 0 to 65535. |
You may need to adjust PEX color parameters if:
Color parameters do not directly affect colors displayed on the terminal. A client can use these values (for example, to set up a colormap to send to the server), but it is not required to use them.
Blue Color Component
The following parameters specify the three values that make up the blue color component of the properly adjusted display monitor. Each value can range from 0.0 to 1.0.
Table 14-4 pex-monitor-reference-blue-u Parameter
Possible Values |
Result |
---|---|
default | 0.1756 |
floating point number | The u' CIE-chromaticity coordinate for the blue color component of the properly adjusted display monitor. |
Possible Values |
Result |
---|---|
default | 0.1785 |
floating point number | The v' CIE-chromaticity coordinate for the blue color component of the properly adjusted display monitor. |
Possible Values |
Result |
---|---|
default | 1.0 |
floating point number | The Y CIE-luminance coordinate for the blue color component of the properly adjusted display monitor. |
The following parameters specify the three values that make up the green color component of the properly adjusted display monitor. Each value can range from 0.0 to 1.0.
Table 14-7 pex-monitor-reference-green-u Parameter
Possible Values
Result
default
0.1169
floating point number
The u' CIE-chromaticity coordinate for the green color component of the properly adjusted display monitor.
Table 14-8 pex-monitor-reference-green-v Parameter
Possible Values
Result
default
0.559
floating point number
The v' CIE-chromaticity coordinate for the green color component of the properly adjusted display monitor.
Table 14-9 pex-monitor-reference-green-y Parameter
Possible Values
Result
default
1.0
floating point number
The Y CIE-luminance coordinate for the green color component of the properly adjusted display monitor.
Red Color Component
The following parameters specify the three values that make up the red color component of the properly adjusted display monitor. Each value can range from 0.0 to 1.0.
Table 14-10 pex-monitor-reference-red-u Parameter
Possible Values
Result
default
0.4288
floating point number
The u' CIE-chromaticity coordinate for the red color component of the properly adjusted display monitor.
Table 14-11 pex-monitor-reference-red-v Parameter
Possible Values
Result
default
0.5249
floating point number
The v' CIE-chromaticity coordinate for the red color component of the properly adjusted display monitor.
Table 14-12 pex-monitor-reference-red-y Parameter
Possible Values
Result
default
1.0
floating point number
The Y CIE-luminance coordinate for the red color component of the properly adjusted display monitor.
Reference White Value
The following parameters specify the three values that make up the reference white value of the properly adjusted display monitor. Each value can range from 0.0 to 1.0.
Table 14-13 pex-monitor-reference-white-u Parameter
Possible Values
Result
default
0.1884
floating point number
The u' CIE-chromaticity coordinate for the reference white value of the properly adjusted display monitor.
Table 14-14 pex-monitor-reference-white-v Parameter
Possible Values
Result
default
0.4463
floating point number
The v' CIE-chromaticity coordinate for the reference white value of the properly adjusted display monitor.
Table 14-15 pex-monitor-reference-white-y Parameter
Possible Values
Result
default
1.0
floating point number
The Y CIE-luminance coordinate for the reference white value of the properly adjusted display monitor.
Setting the Parameters Listed in Change User Preferences
When set through Change User Preferences (Setup -> Change User Preferences), these parameters offer dynamic control over the client. All of the PEX preference parameters take effect immediately after they are applied.
Specifying the Nominal Line Width
This parameter allows you to match the appearance of lines and curves on an NCD terminal to their appearance on other displays.
Table 14-16 pref-pex-nominal-line-width Parameter
Possible Values
Result
default
1
integer
Standard width of lines and curves (in pixels). Range: 1 to 64.
Specifying the Nominal Edge Width
The pref-pex-nominal-edge-width parameter controls the nominal width (in pixels) of edges of surface primitives when such edges are displayed. The nominal edge width is a default width from which other edge sizes are derived by applying a scaling factor (Setup -> Change User Preferences -> PEX -> Nominal Line Width).
Table 14-17 pref-pex-nominal-edge-width Parameter
Possible Values
Result
default
1
integer
Standard width of surface primitive edges (in pixels) when edges are displayed. Range: 1 to 64.
Specifying the Nominal Marker Size
The pref-pex-nominal-marker-size parameter controls the nominal size (in pixels) of marker primitives. For example, if a + (plus) marker is 3 pixels wide, a nominal marker size of 2 makes the plus marker 6 pixels wide. Other marker types (except for dot markers) are scaled accordingly (Setup -> Change User Preferences -> PEX -> Nominal Marker Size).
Table 14-18 pref-pex-nominal-marker-size Parameter
Possible Values
Result
default
1
integer
Standard width of marker primitives (in pixels). Range: 1 to 64.
Specifying Surface Dithering
The pref-pex-dither-flat-shaded-surface parameter controls flat-shaded surface dithering (Setup -> Change User Preferences -> PEX -> Dither Flat Shaded Surface).
Table 14-19 pref-pex-dither-flat-shaded-surface Parameter
The pref-pex-dither-interpolated-surface parameter controls Gouraud-shaded surface dithering (half-toning) (Setup -> Change User Preferences -> PEX -> Dither Interpolated Surface).
Table 14-20 pref-pex-dither-interpolated-surface Parameter
Specifying Surface Interior Style, Shading, and Lighting
The pref-pex-surface-interior-style parameter specifies how to render the interiors of surfaces (Setup -> Change User Preferences -> PEX -> Surface Interior Style).
Table 14-21 pref-pex-surface-interior-style Parameter
The pref-pex-surface-interp-method parameter specifies how to shade the interiors of surfaces (Setup -> Change User Preferences -> PEX -> Surface Interpolation Method).
Table 14-22 pref-pex-surface-interp-method Parameter
The pref-pex-surface-reflect-model parameter specifies how to apply lighting effects to all surfaces (Setup -> Change User Preferences -> PEX -> Surface Reflection Model).
Table 14-23 pref-pex-surface-reflect-model Parameter
Specifying the Color Clipping Method
Color components may exceed the displayable range, for example, when numerous light sources are applied.
Table 14-24 pref-pex-color-clipping-method Parameter