Using Brush-based Tools
Several tools in Softimage use a brush. These include:
• The Paint tool (W) for painting parameter weight maps (see[ ]) and envelope weight maps (see [ ]), as well as Push Paint which is a special case of using a weight map to drive a Push deformation (see [ ]).
• The Paint Vertex Color tool for painting vertex colors, also known as Color at Vertices or CAV properties. See[ ].
• The Paint selection tool (F11) for selecting points, edges, or polygons. See[ ].
All brush-based tools have similar options and workflows:
• Click and drag to “paint”. Look at the mouse status line to see the effects of the different mouse buttons.
• While the tool is active, press R and drag the mouse to change the brush radius. For additional ways to set the radius, see .
• While the tool is active, press E and drag the mouse to change the opacity. The opacity controls how much weight is added or removed with each stamp of the brush. A number at the bottom of the viewport indicates the current opacity setting.
• To modify other brush properties, press Ctrl+W or choose Get > Property > Map Paint Tools > Brush Properties from any toolbar. See [ ].
If an object has more than one paintable property then you may need to select the desired property before painting on it, for example by choosing Explore > Property Maps on the MCP.
Using the Paint Tool
The Paint tool is used to paint weight maps and envelope weights.
Activating the Paint Tool
Do one of the following:
• Press W.
• Choose Get > Property > Paint Tool from any toolbar.
• Click the Paint tool’s icon on the weight paint panel.
Painting in Normal Mode
When painting in normal or additive mode (the default):
- To add weight, use the left mouse button.
- To remove weight, either use the right mouse button or press Shift+left mouse button.
- To smooth weight values between deformers, press Alt+left mouse button.
You can change modes using the[ ], or on the weight paint panel.
Changing the Brush Radius
When using a brush-based tool, you can set the radius interactively or by increments. Alternatively, you can also set the radius in the[ ].
To change the brush radius interactively
• Do one of the following while a brush-based tool is active:
- Press R and drag to the left or right.
- Middle-click and drag to the right to increase the radius, or to the left to decrease it.
The current radius size in Softimage units is displayed at the bottom of the 3D view.
To increase or decrease the brush radius by increments
• While a brush-based tool is active, do either of the following to change the radius by increments of 10% of its current size:
- Press the up arrow key to increase the radius or the down arrow key to decrease it.
- Scroll the mouse wheel forward to increase the radius or backward to decrease it. This works only if you are not using the mouse wheel to zoom — seein [ ].
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