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Digital Dream Studio V2
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Feature list

Basic Concepts

Selection

Blending modes

Effects

Step-by-step guide to DDS

 

Selection

The selection map is a matrix with values ranging from 0 to 255 (0 - transparent; 255 - opaque). It has the exact size of the working surface and it defines the opacity of applying an effect in a certain point. There are several methods to edit the opacity map:

  • Flood fill. It is similar to the flood fill options in other programs (except it has a wide variety of additional options). Also, flood fill is not asocited with a certain effect (you can associate to anything from applying a constant color to blurring).
  • Brush. A brush with a certain texture can be applied to the surface, either to select or deselect an area.
  • Spray. Simulates the spraying of sub-pixel particles over the canvas.
  • Shapes. There are three types of shapes: parametric shapes (curves), implicit shapes (surfaces) and IFS (iterated function systems - chaotic fractal patterns, such as Sierpinsky, Fern, Tree, Leaf - or whatever else the user defines).
  • Rectangle, Ellipse, Superellipse. These are built-in shapes that can be rendered onto the selection map (with a the set value) fast and without setting up the previously mentioned "Shapes" menu.
  • Opacity functions. The simple function selection effect applies a certain function to every value on the selection map. The color slection allows the selection of a certain color range; the color range is defined by attraction colors (colors that should be selected) and it can be further rafined by rejection colors (colors that should be avoided); the color selection can occur on the whole surface as well as on the already selected area. The grow/shrink functions expand or reduce the selected area, following a user-defined directional pattern.
  • Negative. Reverses the selection (transparent areas become opaque and vice-versa).
  • Constant. Resets the entire selection to a constant value.

Once the selection is defined the associated effect can be applied using the "Go" button. Also, the effect can be applied automatically whenever the selection is modified, if the "Auto" button is selected.