The Radial Gradient tool will apply a flood fill of color that ramps from the FG color to the BG color in a circular fashion. LMB+clicking and dragging in the 3D view will create a line from the cursor. This line is used to define the ramp distance from the FG to BG color. The color ramp is calculated in a radial direction with the FG color at the center according to the user defined line. The ramp can be created in 3D views or directly in the UV view. Users can select the tool from the 'Paint' interface tab under the 'Paint Tools' subtab of the toolbox. The 'Radial Gradient' tool can also be activated from the menu bar option under the "Texture > Paint Tools" menu. Once selected, new gradients are created in the active image map, defined by the layer in the shader tree with the small paintbrush icon next to it (
). Simply select a different target layer if you wish to paint onto a different layer. When selected, the associated attributes display in the Properties panel.
Radial Gradient--
Blend Mode: The Blend Mode defines how the filled area will blend into the existing canvas. The default 'Normal' setting will apply opaquely (as defined by the Opacity option) over the top of the existing canvas. The alternate options will work in the same respect as the layer blending options documented with examples on the Blend Modes page of the documentation.
Use Falloff: The 'Use Falloff' option will allow any of the various falloffs to mask the application of fill effect.
Opacity: This value determines how the total opacity of the ink distributed by the gradient. If the value is less than 100% the ink will max out at that percentage and never become fully opaque no matter how many times you paint over the stroke.
FG Color: Sets the foreground color for the gradient. This can be set via the color component on the tool properties or by clicking on the Color Picker while the tool is active.
Alpha: This option allows an alpha value to be associated with the FG paint color.
Value: This percentage can be used to increase or decrease the overall value of the ink being applied. This value can be set over 100% enabling high dynamic range paint strokes (if your image was created with the floating point (FP) mode active or loaded as a file that supports HDRI).
BG Color: Sets the background color for the gradient. This can be set via the color component on the tool properties or by clicking on the Color Picker while the tool is active.
Alpha: This option allows an alpha value to be associated with the BG paint color.
Value: This percentage can be used to increase or decrease the overall value of the ink being applied. This value can be set over 100% enabling high dynamic range paint strokes (if your image was created with the floating point (FP) mode active or loaded as a file that supports HDRI).
