How to Use Rendering Filters in Photoshop CS6
All rendering filters in Adobe Photoshop Creative Suite 6 produce special effects by creating a look, object, or lighting effect that’s melded with your original image.
How to create fibers in Photoshop CS6
This filter can create a textilelike effect out of thin air. Choose Filter→Render→Fibers. In the dialog box that appears, move the Variance slider to increase the contrast between light and dark areas. Move the Strength slider to increase the tightness of the weave of the fibers. Click the Randomize button to get another variation of the effect of the filter.
How to use other rendering filters in Photoshop CS6
Other useful filters on the Render submenu (at Filter→Render) include
Difference Clouds: Use this filter to create puffy objects in the sky (or foggy clouds at lower levels). The Difference Clouds filter uses image information to figure the difference in pixel values between the new clouds and the image they’re joining. The result is a unique cloud effect. Try applying the filter repeatedly to create a marbleized effect.
Lens Flare: This filter creates the reflection effect that plagues photographers when they point their cameras toward a strong light source, such as the sun. Photoshop mimics several different kinds of photographic lenses, giving you useful flares that can spice up concert photos, add a sunset where none existed, and create other kinds of lighting bursts.
In the Lens Flare dialog box, specify a location for the center of the flare by clicking the image thumbnail or dragging the crosshair.
Lighting Effects: As a sort of photo-studio lighting setup, this filter uses pixels to do its work. You can set up 16 different lights and manipulate how they illuminate your photo.