Gradient Ramp is a 2D
map similar to the Gradient map. It shades from one color to another.
In this map, however, you can specify any number of colors or maps
for the gradient. There are a variety of controls, making highly
customized gradients possible. Almost any parameter of Gradient
Ramp can be animated.
Gradient ramp used
for the layers of the cake
To create a material with a Gradient
- Open the Material Editor, and choose
an unused sample slot.
- Close the Basic Parameters rollout, and
open the Maps rollout.
- Click the Map button for Diffuse to display
the Material/Map Browser.
- In the Browser list, click Gradient Ramp.
The map appears in the upper-left of the Browser window. Click OK.
Gradient Ramp map is
applied to the sample slot as the Browser closes.
- In the Material Editor, under its toolbar,
give the material a name to identify its use in your scene.
When you replace an existing
map with a gradient ramp map, choosing to Keep Old Map as Submap
in the Replace Map dialog, the old map becomes assigned to the first
flag as a texture.
material with a colored gradient
Gradient bar shows
default gradient and interpolation types
- Gradient bar
Presents an editable representation
of the gradient being created. The effect of the gradient moves
from left (start point) to right (end point).
By default, three flags
appear along the bottom edge of a red/green/blue gradient. Each flag
controls a color (or map). The currently selected flag is green,
and its RGB value and its position in the gradient (in the range
0 to 100) appear above the gradient bar. Each gradient can have
any number of flags.
The gradient bar has
the following features:
- Click anywhere along the bottom edge
to create additional flags.
- Drag any flag to adjust the position of
its color (or map) within the gradient. The start and end flags
(Flag #1 at 0 and Flag #2 at 100) cannot be moved. However, other
flags can occupy these positions and still be moved.
- More than one flag can occupy a given
position. If two flags are at the same position, a slight edge appears
between the colors. With three or more flags at the same position,
the edge is a hard line.
- Right-click options for gradient bar
Right-click in the gradient
bar to display a menu with these options:
Returns gradient bar
- Load Gradient
Loads an existing gradient
(DGR) file into the gradient bar.
- Save Gradient
Loads your current gradient
bar as a DGR file.
- Copy, Paste
Copies a gradient and pastes
it into another Gradient Ramp map.
- Load UV Map
- Load Bitmap
- Flag Mode
- Right-click options for flags
Right-click any flag
to display a menu with the following options:
- Copy and Paste
Lets you copy the current key
and paste it to replace another key. The other key could be in another
Gradient Ramp as well as the current one.
- Edit Properties
- Gradient Type
Chooses the type of gradient.
The following Gradient types are available. These affect the entire gradient.
- 4 CornerAn
asymmetrical linear transition of colors.
- BoxA box.
- DiagonalA linear
diagonal transition of colors.
on the light intensity value. No light=far left; brightest light=far
- LinearA smooth,
linear transition of colors.
you assign a map to use as the gradient. Enables the Source Map
controls for specifying the map and turning it on and off.
on the angle between the vector from the camera to the object and
the surface normal vector at the sample point. The leftmost flag of
the gradient is 0 degrees; the rightmost flag is 90 degrees.
- PongA diagonal
sweep that repeats in the middle.
- RadialA radial
transition of colors.
- SpiralA smooth,
circular transition of colors.
- SweepA linear
sweep transition of colors.
- TartanA plaid.
Chooses the type of interpolation.
The following Interpolation types are available. These affect the
NoteGradients are ordered
from left to right. The “next” flag is to the right of the current flag;
the “previous” flag is to the left.
Sets an individual interpolation
type for each flag. Right-click the flag to display the
Properties dialog and set the interpolation.
- Ease In
Weighted more toward the
next flag than the current flag.
- Ease In Out
Weighted more toward the
current flag than the next flag.
- Ease Out
Weighted more toward the
previous flag than the next flag.
Constant from one flag to
the next. (Default.)
No interpolation. Transitions
are a sharp line.
- Source Map
Click to assign a map
to a mapped gradient. The check box turns the map on or off.
The Source Map controls
are available only when Mapped is the chosen gradient type.
When nonzero, a random
noise effect is applied to the gradient, based on the interaction
of the gradient ramp colors (and maps, if present). The higher this value,
the greater the effect. Range=0 to 1.
Generates plain noise. Basically
the same as fractal noise with levels disabled (because Regular
is not a fractal function).
Generates noise using
a fractal algorithm. The Levels option sets the number of iterations
for the fractal noise.
Generates fractal noise with
an absolute value function applied to it to make fault lines. Note
that the noise amount must be greater than 0 to see any effects
Sets the scale of the
noise function. Smaller values give smaller chunks of noise.
Controls the speed of
the animation of the noise function. A 3D noise function is used
for the noise; the first two parameters are U and V and the third
Sets the number of fractal iterations
or turbulence (as a continuous function).
Noise Threshold group
When the noise value
is above the Low threshold and below the High threshold, the dynamic
range is stretched to fill 0 to 1. This causes a smaller discontinuity
at the threshold transition and produces less potential aliasing.
Helps make a smoother transition
from the threshold value to the noise value. When Smooth is 0, no
smoothing is applied. When Smooth is 1, the maximum amount of smoothing