Compositing Quick Tips - The Photoshop: Professional Retouching and Compositing Tips, Tricks, and Techniques - page 285

Figure 5.4
4. In the Brush panel, click Brush Tip Shape, set Size to 50px, and set Spacing to 5%
( Figure 5.5 ) . Make sure that the Shape Dynamics and Scattering checkboxes are
selected; all others should be unselected.
Figure 5.5
5. Click Shape Dynamics, and set Size Jitter to 30% and Angle Jitter to 5% so as to
vary the size and angle of the grass a little, making it look more realistic ( Figure
5.6 ) . All other settings can remain at their default.