Lets you paint to place values in precise locations of a fluid grid. See Paint fluid properties into grids. See also How Artisan brush tools work of the Artisan guide.
Lets you specify the settings for the Paint Fluids Tool in the Tool Settings editor. There are attributes unique to the Paint Fluids Tool in the Paint Attributes, Stroke, and Display sections. These unique attributes are described below. For descriptions of all other attributes in all other sections, see Artisan Tool Settings of the Artisan guide.
These are descriptions of the attributes in the Paint Attributes section.
When this option is on (the default), the current state of the fluid (any Density, Velocity, Temperature, Fuel, Color, or Texture Coordinate values in dynamic grids) is saved automatically when you quit the Paint Fluids Tool, change the current time, or change your selection. If this option is off and you do not set the initial state of the fluid before playing or stepping through a simulation, the original painted values are lost.
You can manually set the initial state at any time by selecting Fluid Effects > Set Initial State, and you can clear it by selecting Fluid Effects > Clear Initial State. For more information, see Fluids initial state.
Select which property you want to paint.
Because Density is required to for Fuel to have an effect, you can simultaneously paint Density and Fuel values.
Similarly, because Color only displays in a grid where there is Density, you can simultaneously paint Density and Color values.
If you select Color, or Density and Color, be aware that the default grid color is green/brown (close to RGB 0.4 0.4 0.3). If this is not an acceptable grid color, flood the color grid with the color you want and set it as your initial state, see Flood a container with values and Fluids initial state.
By default, when you paint a property value, only that value displays. You can view all values in the container as they will render by changing Shaded Display in the Display section to As Render.
Select Falloff to paint falloff edges for the display of fluids, so that you can prevent the fluid from appearing in part of the volume. See Define an arbitrary falloff region for fluid containers.
Velocity has both magnitude and direction. The Value setting defines the magnitude of the velocity you paint. Select how to define the direction of painted velocity strokes using the Velocity Direction setting. Velocity vectors display as you paint Velocity (Draw Velocity is turned on in the Display section of the Tool Settings window).
Set the minimum and maximum possible paint values. By default, you can paint values between 0 and 1. Setting the Min/Max Values you can extend or narrow the range of values. Negative values are useful for subtracting values. For example, if you set Min Value to -1, Value to -0.5, and select Add for the operation, you would subtract 0.5 from the values you paint. Positive values are used as multipliers.
The stroke settings define how the brush moves across the selected surface. In addition to the standard Artisan stroke settings, the Paint Fluids Tool has the following option.
Use the settings in this section to define how the brush and property values display. In addition to many of the standard Artisan stroke settings, the Paint Fluids Tool has the following options.
Select how you want the property values to display when in shaded display mode.
Displays only the values for the property selected in Paintable Attributes.
If you paint Density and Fuel at the same time, Density values are represented by the opacity of the shaded values, while Fuel values are represented by a ramp of colors from blue (values of 0) to yellow (values of 1).
If you paint Density and Color at the same time, Density values are represented by the opacity of the shaded values, while Color is represented by the Color Value.
Displays the fluid as it will render. This is the same as setting the Shaded Display attribute in the Attribute Editor to As Render. See Shaded Display.
Turn this option on to display velocity vectors. This is the same as turning on Draw Velocity in the Attribute Editor. See Velocity Draw. Draw Velocity is turned on by default when you paint velocity.
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