Color Panel.
Invoked from Edit
in Menubar or Alt-c.
Uses Motif Widgets (
Choice,
Toggle,
Scale,
Push
) to
adjust properties of the material 'colors' assigned to each primitive.
All primitives assigned an integer index
(See Ribbons Color Index Scheme ).
Changing the definition of 'color #1' (red) will change everything
that was red to the new color.
Widget Name (Widget Type) --- description of function
- Color Index (Choice)
-- choose color index 0..40 of material to edit.
The displayed sphere will reflect the change.
- Color Fill Pattern (Choice)
-- choose a fill pattern for the current color index,
used to set 'screendoor' transparency.
- Light Panel (Push)
-- open the 'Light Panel'.
- Red/Green/Blue Ambient (Scale)
-- adjust RGB ambient (light-source independent)
components of color.
- Red/Green/Blue Diffuse (Scale)
-- adjust RGB diffuse (Lambert's law, light-source dependent)
components of color.
- Red/Green/Blue Specular (Scale)
-- adjust RGB specular (reflected 'highlight')
components of color.
- Red/Green/Blue Emission (Scale)
-- adjust RGB emissive (local glow, but not a light source)
components of color.
- Shinyness (Scale)
-- adjust degree of specularity, higher numbers give more focused highlights.
- Close Panel (Push)
-- dismiss the panel
- Panel Help (Push)
-- show this help screen
Hints:
Colors for every graphics object are assigned an index = 0..40
(0==background, but means 'invisible' for a primitive).
The indices 15 and higher are generally not used by the
data preparation programs, thus are good for special colors.
Use the Fill Pattern to simulate transparency.
Also see other types of and general information
on Control Panels.
BUGS:
Alpha Diffuse currently is only applied to surfaces in ribbons,
and may or may not give satisfactory results,
as there is no sorting of primitives.
However, this value is passed on output to assorted ray-tracers.
Ribbons User Manual / UAB-CBSE / carson@uab.edu